必修三_Unit_4_Astronomy-the_science_of_the_stars词汇归纳与练习

1、Unit 4 new words and expressions1. theoryin theory 理论上 in practice 实际上Your plan is good in theory, but it doesn' t work in practice.2in time1) The storm was in time to stop before the sports meeti ng 终于2) You ' d better return it in time.日寸3) You ' ll learn how to do it in time迟早，总有一天on

2、time3. unlike dislikeUnlike John, Tom dislikes playing football.4. harmfulbe harmful to 对有害The sun can be harmful to your skin.Smoking is harmful to your health.harm n & v 损害，伤害 do harm to对有害harmless adj. 无害的5. in one ' s turnWhen it ' s in my turn, I ' m too excited to speak.He cook

3、ed the meal in his turn this week.by turns 轮流We drove the car by turns.in turn 依次，反之They gave their names in turn.take turns to do sth 轮流做某事6. prevent sb (from) doing sthstop sb (from) doing sthkeep sb from doing sth在被动语态中， from 都不可省。The rain prevented us (from) going there.We were prevented by the

4、rain from going there.We should take measures to prevent the river from being polluted.7. puzzle n.&v.It s' quite a puzzle to us why he did that.The question puzzled them.puzzled adj. She listened with a puzzled expression.puzzling adj. We felt puzzled at these puzzling questions.8. pull n.&

5、amp; v.Give the rope a good pull. 用力拉一下绳子。Help me move the piano, you push and I ' ll pull.pull down 拆毁 pull away 驶离，开走 pull in (火车等)到站，进站 pull through 度过难关 /危机pull up 停下 pull apart 拉开9cheer upI wrote that song just to cheer myself up.He cheered up at the news.Cheer up! The result isn't too

6、bad.10. now that now that相当于since,引导原因状语从句，that可省去。另外不可和so连 用。Now that every one is here, let' s beg in our meeti ng.Now (that) you have grown up, you must stop this childish behavior.Now (that) you are ready, we can go now.11. watch out (for sth)= look out (for sth)Watch out! There is a car com

7、ing.Watch out for thieves. Warming up1. circle 1) v. 画圆圈；盘旋The teacher circled the mistakes in red ink.The plane circled the airport before landing.2) n. 圆, 圆形的东西 ,循环2. match 1) v.a.找相似或相配之物matchwith使和相配b.(物与物)相配(suit, fit),相等,比得上Her shoes match her dress, they look very well together. The hotel can

8、 't be matched for good service and food.2) n. 火柴, 对手Reading1. What it was to become was uncertain until when thdeindtuosat sseotltildeglobe.be to do sth. 1) 表示”应当 / 必须做某事”通, 常用于通知或说明书里 .The books you borrowed are to be returned before July 5.2) 表示“按计划或安排将要做某事”，其完成式则表示“本来打算做某事”。We are to meet at

9、 the school gate.We were to have gone to Beijing last week.3) 表示“将来不可避免要发生的事”All questions are to be answered later.4) 用于与将来事实相反的虚拟条件句。If it were to rain tomorrow, we would stay at home.2. This produced a chain reaction, which made it possible for life to develop.it 做形式宾语 make it + adj. / n. +( for

10、sb.) to do / -clauseWe make it a rule to get up at 6 o'clock every morning.以 it 做形式宾语的动词还有： find, think, consider, feel, believe, take, imagine, suppose, regard等oI found it interesting to study French.We consider it a pity that you didn't come to the party.He didn 't make it crlewahen an

11、d where the meeting would be held.3. as well as意为 不但而且” 和一样好”She is clever as well as beautiful.My family as well as I are glad to see you.4. for the first / second第一e二次”，在句中作状语。the first time第一“时”在句中作连词，引导时间状语从句。It was ten years ago that I met Mary for the first time, and I knew we would be good fr

12、iends the first time I met her.另外句型It / This is/was the first time that 表示 这是第几次做”，从句 中用完成时态。This is the first time that I have see n him.Using Ian guage1. The n we were off.Be off出发，离开，食品变质，不供应This milk is off.The fish is off today, sorry sir.2. get close to 接近，靠近close adj.近的,紧密的，亲密的，关系近的close adv.

13、不远地，近地close v. 关闭closely adv.紧密地，密切地，严密地She stood close to her mother.She is a close frie nd of mine.His house is close to the factory.The pris oners were closely guarded.high / highly deep/ deeply wide/ widely3. twice as far as倍数表达法times as + 原级 asAsia is four times as large as Europe.times +比较级+th

14、a nAsia is four times larger than Europe.times + the size/ height / le ngth / width / depth + ofAsia is four times the size of Europe.times + what 从句The product ion now is three times what it was ten years ago.Unit4一、根据句意填入单词或短语的正确形式1. The professor has brought in a good （系统）of teachi ng Ian guagefr

15、om abroad.2. There are many t about the origin of life.3. Childre n should not be allowed to watch v movies.4. I believe the affair is h to the company.5. The old lady e only on coffee and bread.6. She listened with a p expression on her face.7. The moon ' s p on the sea causes the waves.8. I ha

16、d inten ded to catch the early train, but I did n（及时 get up9. Why do you want to kill the hens that （下蛋）every day?10. Many wome n pla n to gbabies this year.11. Doctors say many diseases can b spreading bywashi ng our han ds.12. I stayed up last night, so today I can' t c13. Nyou have grow n up,

17、 you should not depe nd on your pare nts.14. Do you know whe n the Seco nd World War b?15. Wfor the cars whe n you cross the street.二、Unit4词汇串记Our geography teacher says the earth is only one of the pla nets of thegiant . other planets, lifeon the earth, but life' sorigin is still a . Different

18、and cultures have separate ideas.The teacher says it may be divided into four stages.The first stage is about how the uni verse bega n. A widely acceptedcan explain it. After the“ Big_Bang 二, began to form andcombine to create stars and other bodies. The second stage is how the earth formed.Between

19、4.5 and 3.8 years ago, clouds and dustin spacesettled into a solidThe earth became that it often exploded.The and water appeared. Water is amatter for life toexist on the earth. It also dissolvesgases and acids. The third stage isabout pla nts ' and ani mals ' appeara ncda Asfinsthp water ap

20、pearedand . They produced, which en courages ani mals in the waterto exist. Later, gree n pla nts on the land caused ani mals on the land to appear. They first and became babies. Later, mammalsbabiesdirectly. The last stage is that humans became the most important animals on the earth. We put too mu

21、ch carb on dioxide in the to cause global warmi ng.We musthow thi ngs will go and make laws tothe earth beco ming too hot.we have take n measures, we willsucceed. So let 'sand work together.三、单项选择1. In a room above the store, where a party , some workers were busilysett ing the table.A. was to b

22、e held B. has bee n held C. will be held D. is being held2. It we had stayed together for a couple of weeks I found we had alot in com mon.A. was un til; whe nB. was un til; thatC. wasn ' t until; when D. wasn ' t until; that3. we' ll go camping tomorrow depeds on the weather.A. If B. Wh

23、ether C. That D. Where4. The top leaders of the two countries are holding talks in a friendly .A. state B. situati onC. atmosphere D. air5. As the busiest woman in Norton, she made her duty to look after all theother people ' s affairs in that town.A. this B. that C. one D. it6. -How long are you stay ing?-1 don ' t kno .A. That ' s OK B. Never mi nd C. It depe ndsD. It does n' t matter7. It was raining heavily. Little Mary felt cold, so she stood to her mother.A. close B. closely C. closedD. clos ing8. Will you be home to see the child