Đáp án + Giải thích:
Choose the best answer for each of the following sentences.
1. We should use reusable water bottles ______________ of plastic ones.
a. because b. instead c. despite d. however
2. Walking to school will help ______________ air pollution.
a. refill b. reuse c. recycle d. reduce
3. We should go to school by bike to ______________ the energy.
a. save b. protect c. pollute d. spray
4. The prefix re- in the word reuse means ______________.
a. again b. none c. for d. against
5. One of the bad things about ______________ is that it can make fish die.
a. noise pollution b. soil pollution c. water pollution d. air pollution
6. We should find creative ways to reuse old items before ______________ them away.
a. breathing b. washing c. hearing d. throwing
7. If there is an earthquake, the villagers ______________ in the shelter.
a. will stay b. stay c. stayed d. would stay
8. The town will flood if there ______________ a downpour.
a. would be b. is c. was d. will be
9. If the weather ______________ good, Linh ______________ out with us.
a. is - goes b. will be - goes c. is - will go d. will be - will go.
10.The bear ______________ you if you ______________ it.
a. attacks - provoke b. will attack - provoke c. attacks - will provoke d. will attack - will provoke
Exercise 5: Use the words given to make a conditional sentence - type 1. You can add some words and make necessary changes.
Giải thích: Dựa theo:
+ Câu điều kiện loại 1: [If + thì hiện tại đơn], [will + động từ nguyên mẫu]
+ Câu điều kiện loại 2: [If + thì quá khứ đơn], [would + động từ nguyên mẫu]
+ Câu điều kiện loại 3: [If + thì quá khứ hoàn thành], [would + have + V3/V-ed]
1. If / burn / rubbish, / produce harmful smoke.
- If you burn rubbish, you will produce harmful smoke.
2. If / reuse bottles, / save a lot of money.
- If you reuse these bottles, you will save a lot of money.
3. If / use recycled paper, / save trees.
- If students use recycled paper, they will save a lot of trees.
4. If / plant trees in the schoolyard, / school / green place.
- If students plant trees in the schoolyard, their school will be a greener place.
5. If / rubbish bin in every class, / classrooms / cleaner.
- If there is a rubbish bin in every class, the classroom will be cleaner.
Exercise 6: Complete each sentence so it means the same as the sentence above.
Giải thích: Dựa theo:
+ Câu điều kiện loại 1: [If + thì hiện tại đơn], [will + động từ nguyên mẫu]
+ Câu điều kiện loại 2: [If + thì quá khứ đơn], [would + động từ nguyên mẫu]
+ Câu điều kiện loại 3: [If + thì quá khứ hoàn thành], [would + have + V3/V-ed]
1. My father bought this robot from Japan last week.
→ We have had this Japanese robot since last week.
2. I won’t be able to do everything myself unless I have a modern robot.
→ If I don’t have a modern robot, I won't be able to do everything myself.
3. Minh likes teaching robots very much.
→ Minh is very interested in teaching robots.
4. The robot in my house can clean the floors very well.
→ The robot in my house is a very good cleaner.
5. In the future, robots will be able to do all the dangerous things for people.
→ People won’t have to do all the dangerous things in the future.
(hay thì cho mình câu trả lời hay nhất, 5 sao và lời cảm ơn để mang về cho nhóm nhé! CHúc bạn học tốt!)