I.Write the conditional sentences from the following statements.
1. We will plant more trees. The air will be fresher.
->If ……………………………………………………..
2. We will use fewer cars. We will reduce pollution.
->If …………………………………………………
3. We will cycle to school every day. We will keep fitter.
->If ……………………………………………………..
4. We will use recycled products. We will save money.
->If ………………………………………………………………
5. People will throw rubbish into the right bin. They will keep the environment clean.
-> If …………………………………………………………………………
6. We will turn off the tap when brushing the teeth. We will save a lot of water.
-> If ……………………………………………………………………….
7. People will travel more by public transport. The harmful gases in big cities will be reduced.
-> If …………………………………………………………………………….
8. We will start at six. We will arrive there before noon.
->If ………………………………………………………………
9. The boy eats so may green apples. He will be ill.
->If ……………………………………………………………………
10.We will use reusable bags for shopping. We will reduce waste.
->If …………………………………………………………………………….
II. Make sentences using the words and phrases given
1. Not/ throw/ plastic bags/ because/ you/ reuse.
………………………………………………………………………
2. if/ water/ polluted/ fishes/ die.
…………………………………………………………………
3. if/ you/ turn off/ tap/ when/ brush/ teeth/ you/ save/ water
…………………………………………………………………….
4. if/ we/ plant/ trees/ air/ fresher.
……………………………………………………
5. You/ turn off/ lights/ before/ leave/ room.
………………………………………………………………
6. We / should/ use/ useable bags/ instead of/ plastic bags
………………………………………………………………
7. if/ we/ go/ school/ bus/ we/ reduce/ air pollution
……………………………………………………….
8. if/ we/ use/ pesticides/ indiscriminately/ water pollution/ worse
………………………………………………………………………..
Đáp án: A
Giải thích: Cấu trúc there + be + N: có…
Câu điều kiện loại 2 “If + quá khứ đơn, S + would/ could/ might + V nguyên thể”
Dịch: Nếu có nhiều cây hơn ở khu này, không khí sẽ trong lành hơn.