Unit 4 同步练习
一、词组翻译。
1.在太阳系 ____________________秋分手抄报及时，终于 ____________________
2.不同于地球 ____________________是……的基础 ___________________
3.连锁反应 ____________________下蛋 ________________________
4.轮到某人 _____________________挡住光线 _____________________
5.产生 _____________________乘 _________________________
6.振奋 _______________________既然 _______________________
7.爆发 被同学______________________当心，提防____________________
8.冷却 ______________________对……有害______________________
9.阻止，制止 _______________________一般而言______________________
10.引起关注 ______________________灭绝 _______________________
11.全球变暖 ______________________开始时__________________________
12.春联的故事熟悉，理解，掌握_______________________跌倒______________________例开头的成语
二 、单词拼写
1. A v_______________ storm hit the country and damaged many buildings.
2. The moon's p____________ on the Earth's oceans creates the tides.
3. Eating too much junk food is h________________ to your health.
4. Many people believe that life e________________ on other planets besides the earth.
5. She spent the afternoon f_________________ on her back in the pool.
6. The flowers will not grow in a cold c_______________.
7. It's hard to breathe on top of the mountain, so you'd better take an o____________ bottle.
8. The new owners have tried to give the restaurant a more family-friendly a____________.
9. U_____________ most students in my class, I don't like PE lessons.
10. The p______________ of the famous actor made all his fans excited.
11 Hawking is one of the most famous ___________(physic) in the world.
12 ____________(like)如何正确佩戴口罩 China, Australia is in Winter when China is in summer.
13 The young man speaks ________(gentle) and everyone likes him.
14 There is too much ____________(violent) on TV which is bad for the health of the young.
15 Some factories produce __________(harm) gas, which pollutes our _________(大气层).
16 The __________(气候) is very pleasant in Kunming all the year round. w.w.w.k.s.
17 The discovery of __________(重力) is so important for science.
18 We can e live programs from America becau of man-made ___________(卫星)
19 We are trying to build a better social ____________(体系).
20 Though the __________(理论) was not right, it affects many people at that time.
in time, a cloud of dust, protect…from, be fundamental to, be harmful to, lay eggs , in one’s turn, give birth to, multiply…by
三. 用所给短语的正确形式填空1. In summer she is ud to wearing her sunglass _____ ______her eyes _______the
sun.
2. Stick to your theory and I believe you will surely gain success _________.
3. Seven _______ _______ ven makes forty-nine.
4. Some mammals give birth to their young by _____________.
5. He was walking on the road when suddenly a car rushed by, raising ____________.
6. In class the students answered the teacher’s questions __羊排骨怎么做好吃___ ______ .
7. Unlike human beings, rabbits can _____ ______ ______ ven to ten babies at a birth.
8. We all know that water and oxygen _____________the development of life.
9. We human beings do something ___________our environment, causing lots of pollution.
耶酥10. Thus, ___________, the environment no longer provides us humans with good farmland to grow crops on, causing some to starve.
四、单项填空
1. Mammals _________when animals harmful to them disappeared.
A. multiplied B. lesned C. existed D. spread
2. Reptiles produced young generally by _______eggs.
A. lying B. lied C. laying D. laid
3.Becau of the sudden change of the weather, the dinosaurs were unable to _______themlves
________ altogether.
A. protect, against disappeared B. keep, becoming extinct
C. prevent, from being died out D. stop, from disappearing
4. Next green plants began to grow on _____land. They were followed in ______time by land animals.
A. the, the B. a, / C. /, / D. /, a
5. Everyone should show respect for our parents and try to do all for them. After all, we _________by our mothers.
A. gave birth to them B. were given birth C. were born D. were given birth togpu和cpu
6. As the rocket ro into the air, we were_______ back into the ats becau we were trying to escape the ______of the earth’s gravity.
