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When did first toys come into (exist)1 ………………… and what led to their development? Did they represent an attempt by adults to make children happy, or did they arise from various playful (active)2 ………………… of children themselves? As everyone knows, the young (frequent)3 ………………… copy the (behave)4 ………………… of their elders, and, in their play, they often adopt objects used by adults for entirely different purposes. These objects (courage)5 ………………… the child’s (imagine)6 ………………… and lead to games in...
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When did first toys come into (exist)1 ………………… and what led to their development? Did they represent an attempt by adults to make children happy, or did they arise from various playful (active)2 ………………… of children themselves? As everyone knows, the young (frequent)3 ………………… copy the (behave)4 ………………… of their elders, and, in their play, they often adopt objects used by adults for entirely different purposes. These objects (courage)5 ………………… the child’s (imagine)6 ………………… and lead to games in which everyday articles often play unusual and (expect)7 ………………… roles. It is rather surprising for an (explain)8 ………………… of the origin of toys, we can not turn to folk stories. However, no traditional tale (relate)9 ………………… to the origin of toys exists, and so our (know)10 ………………… is restricted to archeological study and limited evidence from documents.   

Fill in the blank with a suitable word.  

Hardly a week goes by (1) ………………….some advance in technology. That would have seemed incredible 50 years ago. Over the past 20 years computers (2) ……………....…. completely revolutionized our lives. The next 25 years will see as many (3) ………………... as have been witnessed in the past 150 years. These developments (4) …………………. technology are bound to have dramatic (5) ………… …………….on the future of work. Doctors will find that an electronic competitor will be able to (6) ………......…….out a much quicker and more accurate diagnosis and recommend more efficient  courses of (7) ………………. In education, teachers will be largely replaced by teaching machines much (8) ……..…………… knowledgeable than any human being. What’s (9) ……..………., most learning will take place in the 

1
18 tháng 8 2021

THE HISTORY OF TOYS

When did the first toys come into (1) __existence___ (EXIST)and what led to their development? Did they represent an attempt by adults to make children happy, or did they arise from the various playful (2) __activities___ (ACTIVE) of children themselves? As everyone knows, the young (3) ____frequently_ (FREQUENT) copy the (4) _behaviours____ (BEHAVE) of their elders, and, in their play, they often adopt objects used by adults for entirely different purposes. These objects (5) ___encourage__ (COURAGE) the child’s (6) ___imagination__ (IMAGINE) and lead to games in which everyday articles often play unusual and (7) ___unexpected__ (EXPECT) roles.

It is rather surprising that for an (8) ___explanation__ (EXPLAIN) of the origin of toys, we cannot turn to folk stories. However, no traditional tale (9) ___related__ (RELATE) to the origin of toys exists, and so our (10) ___knowledge__ (KNOW) is restricted to archaeological study and limited evidence from documents.   

II

Hardly a week goes by (1) ………without ………….some advance in technology. That would have seemed incredible 50 years ago. Over the past 20 years computers (2) …………have …....…. completely revolutionized our lives. The next 25 years will see as many (3) ………changes ………... as have been witnessed in the past 150 years. These developments (4) …………in………. technology are bound to have dramatic (5) ………… …effect………….on the future of work. Doctors will find that an electronic competitor will be able to (6) ………carry ......…….out a much quicker and more accurate diagnosis and recommend more efficient  courses of (7) ………treatment………. In education, teachers will be largely replaced by teaching machines much (8) ……..…more………… knowledgeable than any human being. What’s (9) ……..more………., most learning will take place in the 

Part 4: Supply the correct form of the words in bracket. Write your answers in the space provided under this passage. (20 pts) THE HISTORY OF TOYS When did the first toys come into (1) _____ (EXIST) and what led to their development? Did they represent an attempt by adults to make children happy, or did they arise from the various playful (2) _____ (ACTIVE) of children themselves? As everyone knows, the young (3) _____ (FREQUENT) copy the (4) _____ (BEHAVE) of their elders, and, in their...
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Part 4: Supply the correct form of the words in bracket. Write your answers in the space provided under this passage. (20 pts)

THE HISTORY OF TOYS

When did the first toys come into (1) _____ (EXIST) and what led to their development? Did they represent an attempt by adults to make children happy, or did they arise from the various playful (2) _____ (ACTIVE) of children themselves? As everyone knows, the young (3) _____ (FREQUENT) copy the (4) _____ (BEHAVE) of their elders, and, in their play, they often adopt objects used by adults for entirely different purposes. These objects (5) _____ (COURAGE) the child’s (6) _____ (IMAGINE) and lead to games in which everyday articles often play unusual and (7) _____ (EXPECT) roles.
It is rather surprising that for an (8) _____ (EXPLAIN) of the origin of toys, we cannot turn to folk stories. However, no traditional tale (9) _____ (RELATE) to the origin of toys exists, and so our (10) _____ (KNOW) is restricted to archaeological study and

2
31 tháng 5 2019

Part 4: Supply the correct form of the words in bracket. Write your answers in the space provided under this passage. (20 pts)

THE HISTORY OF TOYS

When did the first toys come into (1) __existence___ (EXIST)and what led to their development? Did they represent an attempt by adults to make children happy, or did they arise from the various playful (2) __activities___ (ACTIVE) of children themselves? As everyone knows, the young (3) ____frequently_ (FREQUENT) copy the (4) _behaviours____ (BEHAVE) of their elders, and, in their play, they often adopt objects used by adults for entirely different purposes. These objects (5) ___encourage__ (COURAGE) the child’s (6) ___imagination__ (IMAGINE) and lead to games in which everyday articles often play unusual and (7) ___unexpected__ (EXPECT) roles.

It is rather surprising that for an (8) ___explanation__ (EXPLAIN) of the origin of toys, we cannot turn to folk stories. However, no traditional tale (9) ___related__ (RELATE) to the origin of toys exists, and so our (10) ___knowledge__ (KNOW) is restricted to archaeological study and

26 tháng 1 2021

em ơi, bài này ở  sách gì thế

 

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 35 to 42.   Long before they can actually speak, babies pay special attention to the speech they hear around them. Within the first month of their lives, babies’ responses to the sound of the human voice will be different from their responses to other sorts of auditory stimuli. They will stop crying when they hear a person talking, but not if they hear...
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Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 35 to 42.

  Long before they can actually speak, babies pay special attention to the speech they hear around them. Within the first month of their lives, babies’ responses to the sound of the human voice will be different from their responses to other sorts of auditory stimuli. They will stop crying when they hear a person talking, but not if they hear a bell or the sound of a rattle. At first, the sounds that an infant notices might be only those words that receive the heaviest emphasis and that often occur at the ends of utterances. By the time they are six or seven weeks old, babies can detect the difference between syllables pronounced with rising and falling inflections. Very soon, these differences in adult stress and intonation can influence babies’ emotional states and behavior. Long before they develop actual language comprehension, babies can sense when an adult is playful or angry, attempting to initiate or terminate new behavior, and so on, merely on the basis of cues such as the rate, volume, and melody of adult speech.

  Adults make it as easy as they can for babies to pick up a language by exaggerating such cues. One researcher observed babies and their mothers in six diverse cultures and found that, in all six languages, the mothers used simplified syntax, short utterances and nonsense sounds, and transformed certain sounds into baby talk. Other investigators have noted that when mothers talk to babies who are only a few months old, they exaggerate the pitch, loudness, and intensity of their words. They also exaggerate their facial expressions, hold vowels longer, and emphasize certain words.

  More significant for language development than their response to general intonation is observation that tiny babies can make relatively fine distinctions between speech sounds. Other words, babies enter the world with the ability to make precisely those perceptual discriminations that are necessary if they are to acquire aural language.

  Babies obviously derive pleasure from sound input, too: even as young as nine months they will listen to songs or stories, although the words themselves are beyond their understanding. For babies, language is a sensory-motor delight rather than the route to prosaic meaning that it often is for adults.

What does the passage mainly discuss?

A. How babies differentiate between the sound of the human voice and other sounds 

B. The differences between a baby’s and an adult’s ability to comprehend language 

C. How babies perceive and respond to the human voice in their earliest stages of language development 

D. The response of babies to sounds other than the human voice

1
18 tháng 10 2017

Chọn C

last Tuesday Dick went to Bristol. The train got into Temple Mead at 12.45.Rosemary, his close friend met him outside the station . First, they went to a small cafe to have a cup of coffee. They talked endlessly.Then they walked around for a while, and finally went to Rosemary's house. They had a lovely lunch.Dick met Rosemary's mother and later her two children when they went home from school. In the evening, he went to see a very interesting film with Rosemary's family.After the show , he...
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last Tuesday Dick went to Bristol. The train got into Temple Mead at 12.45.Rosemary, his close friend met him outside the station . First, they went to a small cafe to have a cup of coffee. They talked endlessly.Then they walked around for a while, and finally went to Rosemary's house. They had a lovely lunch.Dick met Rosemary's mother and later her two children when they went home from school. In the evening, he went to see a very interesting film with Rosemary's family.After the show , he said goodbye to them and left for london

1. How did Dick go to Bristol last Tuesday?

......................................................................

2. What time did the train arrive at temple Mewad?

.......................................................................

3. Whom did Dick meet at Rosemary's house?

.....................................................................

4. Did he watch an interesting film with Rosemary's family?

.....................................................................

5. When did Dick leave for London?

......................................................................

0

nguyễn hà hồng ngọc

1. He went there by train

3 tháng 7 2020

ờm thưa bạn là chúng tôi phải làm gì với cái này

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.Long before they can actually speak, babies pay special attention to the speech they hear around them. Within the first month of their lives, babies' responses to the sound of the human voice will be different from their responses to other sorts of auditory stimuli. They will stop crying when they hear a person talking, but not if they hear a...
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Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.

Long before they can actually speak, babies pay special attention to the speech they hear around them. Within the first month of their lives, babies' responses to the sound of the human voice will be different from their responses to other sorts of auditory stimuli. They will stop crying when they hear a person talking, but not if they hear a bell or the sound of a rattle. At first, the sounds that an infant notices might be only those words that receive the heaviest emphasis and that often occur at the ends of utterances. By the time they are six or seven weeks old, babies can detect the difference between syllables pronounced with rising and falling inflections. Very soon, these differences in adult stress and intonation can influence babies' emotional states and behavior. Long before they develop actual language comprehension, babies can sense when an adult is playful or angry, attempting to initiate or terminate new behavior, and so on, merely on the basis of  cues such as the rate, volume, and melody of adult speech.

Adults make it as easy as they can for babies to pick up a language by exaggerating such cues. One researcher observed babies and their mothers in six diverse cultures and found that, in all six languages, the mothers used simplified syntax, short utterances and nonsense sounds, and transformed certain sounds into baby talk. Other investigators have noted that when mothers talk to babies who are only a few months old, they exaggerate the pitch, loudness, and intensity of their words. They also exaggerate their facial expressions, hold vowels longer, and emphasize certain words.

More significant for language development than their response to general intonation is observation that tiny babies can make relatively fine distinctions between speech sounds. In other words, babies enter the world with the ability to make precisely those perceptual discriminations that are necessary if they are to acquire aural language.

Babies obviously derive pleasure from sound input, too: even as young as nine months they will listen to songs or stories, although the words themselves are beyond their understanding. For babies, language is a sensory-motor delight rather than the route to prosaic meaning that it often is for adults

What does the passage mainly discuss?

A. The differences between a baby's and an adult's ability to comprehend language

B. How babies perceive and respond to the human voice in their earliest stages of language development

C. The response of babies to sounds other than the human voice

D. How babies differentiate between the sound of the human voice and other sounds

1
31 tháng 5 2019

Đáp án : B

Đoạn văn nói về sự phản ứng với tiếng nói của trẻ em từ lúc sơ sinh, chưa có khả năng hiểu

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 43 to 50. Long before they can actually speak, babies pay special attention to the speech they hear around them. Within the first month of their lives, babies' responses to the sound of the human voice will be different from their responses to other sorts of auditory stimuli. They will stop crying when they hear a person talking, but not if they hear a...
Đọc tiếp

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 43 to 50.

Long before they can actually speak, babies pay special attention to the speech they hear around them. Within the first month of their lives, babies' responses to the sound of the human voice will be different from their responses to other sorts of auditory stimuli. They will stop crying when they hear a person talking, but not if they hear a bell or the sound of a rattle. At first, the sounds that an infant notices might be only those words that receive the heaviest emphasis and that often occur at the ends of utterances. By the time they are six or seven weeks old, babies can detect the difference between syllables pronounced with rising and falling inflections. Very soon, these differences in adult stress and intonation can influence babies' emotional states and behavior. Long before they develop actual language comprehension, babies can sense when an adult is playful or angry, attempting to initiate or terminate new behavior, and so on, merely on the basis of cues such as the rate, volume, and melody of adult speech. Adults make it as easy as they can for babies to pick up a language by exaggerating such cues. One researcher observed babies and their mothers in six diverse cultures and found that, in all six languages, the mothers used simplified syntax, short utterances and nonsense sounds, and transformed certain sounds into baby talk. Other investigators have noted that when mothers talk to babies who are only a few months old, they exaggerate the pitch, loudness, and intensity of their words. They also exaggerate their facial expressions, hold vowels longer, and emphasize certain words.

More significant for language development than their response to general intonation is observation that tiny babies can make relatively fine distinctions between speech sounds. In other words, babies enter the world with the ability to make precisely those perceptual discriminations that are necessary if they are to acquire aural language.

Babies obviously derive pleasure from sound input, too: even as young as nine months they will listen to songs or stories, although the words themselves are beyond their understanding. For babies, language is a sensory-motor delight rather than the route to prosaic meaning that it often is for adults

The word "They" refers to ______________. 

A. words 

B. mothers 

C. investigators 

D. babies 

1
10 tháng 5 2018

Đáp án B

Giải thích: they có nghĩa là họ. Thông tin nằm ở đoạn 2 “Other investigators have noted that when mothers talk to babies who are only a few months old, they exaggerate the pitch, loudness, and intensity of their words. They also exaggerate their facial expressions, hold vowels longer, and emphasize certain words.” Ta dịch nghĩa: Những nhà nghiên cứu khác đã lưu ý rằng khi mẹ nói chuyện với em bé chỉ mới vài tháng tuổi, họ phóng đại cao độ, độ to và cường độ của lời nói. Họ cũng phóng đại luôn cả nét mặt của họ, giữ nguyên âm dài hơn và nhấn mạnh một số từ.

Như vậy, từ “họ” ở đây thay thế cho người mẹ.

Dịch nghĩa: Từ “they” nhắc tới __________.

A. từ ngữ 

B. mẹ 

C. các nhà nghiên cứu 

D. trẻ em 

Read the following passage and mark the letter A,B,C or D on your answer sheet to indicate the correct answer to each of the questions from 55 to 64Long before they can actually speak, babies pay special attention to the speech they hear around them. Within the first month of their lives, babies' responses to the sound of the human voice will be different from their responses to other sorts of auditory stimuli. They will stop crying when they hear a person talking, but not if they hear a bell...
Đọc tiếp

Read the following passage and mark the letter A,B,C or D on your answer sheet to indicate the correct answer to each of the questions from 55 to 64

Long before they can actually speak, babies pay special attention to the speech they hear around them. Within the first month of their lives, babies' responses to the sound of the human voice will be different from their responses to other sorts of auditory stimuli. They will stop crying when they hear a person talking, but not if they hear a bell or the sound of a rattle. At first, the sounds that an infant notices might be only those words that receive the heaviest emphasis and that often occur at the ends of utterances. By the time they are six or seven weeks old, babies can detect the difference between syllables pronounced with rising and falling inflections. Very soon, these differences in adult stress and intonation can influence babies' emotional states and behavior. Long before they develop actual language comprehension, babies can sense when an adult is playful or angry, attempting to initiate or terminate new behavior, and so on, merely on the basis of cues such as the rate, volume, and melody of adult speech.

Adults make it as easy as they can for babies to pick up a language by exaggerating such cues. One researcher observed babies and their mothers in six diverse cultures and found that, in all six languages, the mothers used simplified syntax, short utterances and nonsense sounds, and transformed certain sounds into baby talk. Other investigators have noted that when mothers talk to babies who are only a few months old, they exaggerate the pitch, loudness, and intensity of their words. They also exaggerate their facial expressions, hold vowels longer, and emphasize certain words.

More significant for language development than their response to general intonation is observation that tiny babies can make relatively fine distinctions between speech sounds. In other words, babies enter the world with the ability to make precisely those perceptual discriminations that are necessary if they are to acquire aural language.

Babies obviously derive pleasure from sound input, too: even as young as nine months they will listen to songs or stories, although the words themselves are beyond their understanding. For babies, language is a sensory-motor delight rather than the route to prosaic meaning that it often is for adults

The word "They" refers to ______________

A. babies

B. investigators

C. words

D. mothers

1
19 tháng 1 2018

Đáp án : D

Từ dòng 4 đoạn 2: các bà mẹ trò chuyện với con… họ nhấn mạnh cao độ, lớn giọng,… Họ cũng nhấn mạnh vẻ mặt,… “ They”-> mothers

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 39 to 45. Long before they can actually speak, babies pay special attention to the speech they hear around them. Within the first month of their lives, babies' responses to the sound of the human voice will be different from their responses to other sorts of auditory stimuli. They will stop crying when they hear a person talking, but not if they hear a...
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Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 39 to 45.

Long before they can actually speak, babies pay special attention to the speech they hear around them. Within the first month of their lives, babies' responses to the sound of the human voice will be different from their responses to other sorts of auditory stimuli. They will stop crying when they hear a person talking, but not if they hear a bell or the sound of a rattle. At first, the sounds that an infant notices might be only those words that receive the heaviest emphasis and that often occur at the ends of utterances. By the time they are six or seven weeks old, babies can detect the difference between syllables pronounced with rising and falling inflections. Very soon, these differences in adult stress and intonation can influence babies' emotional states and behavior. Long before they develop actual language comprehension, babies can sense when an adult is playful or angry, attempting to initiate or terminate new behavior, and so on, merely on the basis of cues such as the rate, volume, and melody of adult speech.

Adults make it as easy as they can for babies to pick up a language by exaggerating such cues. One researcher observed babies and their mothers in six diverse cultures and found that, in all six languages, the mothers used simplified syntax, short utterances and nonsense sounds, and transformed certain sounds into baby talk. Other investigators have noted that when mothers talk to babies who are only a few months old, they exaggerate the pitch, loudness, and intensity of their words. They also exaggerate their facial expressions, hold vowels longer, and emphasize certain words.

More significant for language development than their response to general intonation is observation that tiny babies can make relatively fine distinctions between speech sounds. In other words, babies enter the world with the ability to make precisely those perceptual discriminations that are necessary if they are to acquire aural language.

Babies obviously derive pleasure from sound input, too: even as young as nine months they will listen to songs or stories, although the words themselves are beyond their understanding. For babies, language is a sensory-motor delight rather than the route to prosaic meaning that it often is for adults. 

The passage mentions of the following as ways adults modify their speech when talking to their babies EXCEPT _______. 

A. giving all words equal emphasis 

B. speaking with shorter sentences 

C. speaking more loudly than normal 

D. using meaningless sounds 

1
2 tháng 12 2017

Kiến thức: Đọc hiểu

Giải thích:

Bài viết đề cập đến tất cả các ý sau là cách mà người lớn thay đổi giọng nói khi nói chuyện với trẻ con, trừ việc___________.

A. nhấn mạnh các từ như nhau                       B. nói câu ngắn

C. nói to hơn bình thường                               D. dùng những âm thanh vô nghĩa

Thông tin: One researcher observed babies and their mothers in six diverse cultures and found that, in all six languages, the mothers used simplified syntax, short utterances and nonsense sounds, and transformed certain sounds into baby talk. Other investigators have noted that when mothers talk to babies who are only a few months old, they exaggerate the pitch, loudness, and intensity of their words. They also exaggerate their facial expressions, hold vowels longer, and emphasize certain words.

Tạm dịch: Một nhà nghiên cứu quan sát trẻ sơ sinh và các bà mẹ trong sáu nền văn hóa khác nhau và phát hiện ra rằng, trong tất cả sáu ngôn ngữ, các bà mẹ sử dụng cú pháp đơn giản, lời nói ngắn, có những âm thanh vô nghĩa, và biến một số âm thanh nào đó thành cách nói chuyện như của bé. Những nhà nghiên cứu khác đã lưu ý rằng khi mẹ nói chuyện với em bé chỉ mới vài tháng tuổi, họ phóng đại cao độ, độ to và cường độ của lời nói. Họ cũng phóng đại luôn cả nét mặt của họ, giữ nguyên âm dài hơn và nhấn mạnh một số từ.

Chọn A 

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 43 to 50. Long before they can actually speak, babies pay special attention to the speech they hear around them. Within the first month of their lives, babies' responses to the sound of the human voice will be different from their responses to other sorts of auditory stimuli. They will stop crying when they hear a person talking, but not if they hear a...
Đọc tiếp

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 43 to 50.

Long before they can actually speak, babies pay special attention to the speech they hear around them. Within the first month of their lives, babies' responses to the sound of the human voice will be different from their responses to other sorts of auditory stimuli. They will stop crying when they hear a person talking, but not if they hear a bell or the sound of a rattle. At first, the sounds that an infant notices might be only those words that receive the heaviest emphasis and that often occur at the ends of utterances. By the time they are six or seven weeks old, babies can detect the difference between syllables pronounced with rising and falling inflections. Very soon, these differences in adult stress and intonation can influence babies' emotional states and behavior. Long before they develop actual language comprehension, babies can sense when an adult is playful or angry, attempting to initiate or terminate new behavior, and so on, merely on the basis of cues such as the rate, volume, and melody of adult speech. Adults make it as easy as they can for babies to pick up a language by exaggerating such cues. One researcher observed babies and their mothers in six diverse cultures and found that, in all six languages, the mothers used simplified syntax, short utterances and nonsense sounds, and transformed certain sounds into baby talk. Other investigators have noted that when mothers talk to babies who are only a few months old, they exaggerate the pitch, loudness, and intensity of their words. They also exaggerate their facial expressions, hold vowels longer, and emphasize certain words.

More significant for language development than their response to general intonation is observation that tiny babies can make relatively fine distinctions between speech sounds. In other words, babies enter the world with the ability to make precisely those perceptual discriminations that are necessary if they are to acquire aural language.

Babies obviously derive pleasure from sound input, too: even as young as nine months they will listen to songs or stories, although the words themselves are beyond their understanding. For babies, language is a sensory-motor delight rather than the route to prosaic meaning that it often is for adults

What point does the author make to illustrate that babies are born with the ability to acquire language? 

A. Babies exaggerate their own sounds and expressions

B. Babies begin to understand words in songs

C. Babies notice even minor differences between speech sounds

D. Babies are more sensitive to sounds than are adults

1
3 tháng 5 2018

Đáp án C

Giải thích: Thông tin nằm ở đoạn 3 “More significant for language development than their response to general intonation is observation that tiny babies can make relatively fine distinctions between speech sounds”. Ta dịch nghĩa: Đáng kể hơn trong sự phát triển ngôn ngữ so với phản ứng với ngữ điệu nói chung là những em bé có thể phân biệt tương đối giữa các âm nói.

Đáp án A sai vì người lớn phóng đại các âm và biểu cảm chứ không phải trẻ

Đáp án B sai vì trẻ chưa hiểu được các từ trong bài hát

Đáp án D sai vì trẻ không nhạy cảm hơn người lớn mà trẻ thích âm thanh, còn người lớn thì coi đó là để hiểu

Dịch nghĩa: Tác giả đưa ra luận điểm gì để chứng minh là trẻ em được sinh ra với khả năng để học ngôn ngữ?

A. Trẻ phóng đại các âm và biểu cảm của chúng

B. Trẻ bắt đầu hiểu các từ trong bài hát

C. Trả nhận ra sự khác biệt nhỏ trong giọng nói

D. Trẻ nhạy cảm với âm thanh hơn người lớn