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2019-2020年人教版高中英语必修三Unit 4Astronomy the science of the starsword导学案5Learning Goals:1. To solve Ss puzzles in the reading text 2. To enable Ss to master some new words, expressions and sentence patterns. Important points: Not until, in time, (sth) be to do, the first timePreviewing(预习)Task 1：写出下列单词的同源词 astronomy n. _(意义)： _(n.)_(意义) religion n. 宗教；宗教信仰 _ (adj.)_ (意义) violent adj. 猛烈的： _ (n.) _ (意义) global adj. 全球性的：_ (n.) _ (意义) unlike prep.不同；不像：_（prep.)相像 _(v.)不喜欢harmful adj. 有害的：_(n.) _(意义)fundamental adj.基础的： _(adv.)_(意义)extinct adj.灭绝的 ：_(n.)_(意义)exhaust vt. 用尽，耗尽_(adj)_(意义)multiply_ (意义) 加_ 减_ 除_Task 2:根据句子的结构和意义，在空格处填入一个恰当的单词，或者用括号中所给的适当形式填空。1. We have established socialist _(制度).2. He doesnt believe in _(宗教).3. It is so in _(理论)，but not in practice.4. The struggle became more and more _(激烈的).5. Fresh air is _(基础的，基本的) to good health.6. Fruit juices can be _(有害的) to childrens teeth.8. Salt _(存在) mostly in sea water.9. What _(使迷惑) me is why he looks so old.10. Children will learn to _(乘) in the second grade.Research in class (课堂探究)Step1. Lead-inSolve the puzzles in the reading text.Step 2.Thinking1. What it was to bee was uncertain until between 4.5 and 3.8 billion years ago when the dust settled into a solid globe.Notuntil直到才It is/was not until that 强调句直到十点我才吃早餐I didnt have breakfast until 10 oclock. _. (用强调句)他们到了西藏才发现它的美.They didnt notice the beauty of Tibet until they arrived there._(用强调句)2. The earth became so violent that it was not clear whether the shape would last or not. violent adj.猛烈的，激烈的 _n. 暴力 激情即学即练1. They made a air attack on the contrary.Afirm B. violent C. painful D. huge2. On hearing the unexpecting news, our teacher trembled .Amuch B. gentlely C. violently D. especially 3. They were in time to produce carbon, nitrogen, water, vapor, and other gases, which were to make the earths atmosphere.1)in time: sooner or later; eventually 迟早;最终The truth will e to light in time.真相最终会大白于天下。 in time (for sth. /to do sth.): not late及时；不迟她会及时回来准备晚餐. She will be back in time to prepare dinner.你认为我们能及时赶上火车吗? Do you think we can get there _the train?与time相关的短语:on time in no time ahead of time all the time at a time at one time at the same time at times for the time being kill time 即学即练 (1) I must hurry. I want to get home _ to watch the football match.A. on time B. in time C. at once D. just then(2)Dont all speak at once! _, please.A. Each at one time B. One by one time C. One for each time D. One at a time (3)We used to be good friends _ but arent now.A. at a time B. at times C. at all times D. at one time(4)With so many hungry children seated round the table, the food disappeared _.A. in time B. at a time C. in no time D. all the time(5)If the train is _, it should arrive in Beijing at 10 oclock exactly.A. in time B. on time C. next time D. by the time2)(sth) be to (do): 不可避免要发生或必须发生。They said goodbye, little knowing that they were never to meet again. She is to be honored for this great work. 表示按计划、安排要发生的动作When are they to hand in their plan？ 表命令Tell her she is not to be back late!4. It was not immediately obvious that water was to be fundamental to the development of life.1) It was (not ) obvious that显而易见的_(显而易见) the manager of the coffee shop was waiting for Lifang to leave.For obvious reasons, Id prefer not to give my name.2) be fundamental to 对于来说是必要的Hard work _(对.是重要/必要的) to success.There is a fundamental difference between the two points of view.译： .教育公平是实现幸福宜春的基础。译： .5. Later when the plants grew into forest, reptiles appeared for the first time. For the first/second/third time 第一/二/三次，在句子中作时间状语我那是第一次见到她.I saw her for the first time.十年后, 他第三次来到这里.Ten years later, he came here for the third time.与the first time 区别：the first time 后可以跟句子, 引导时间状语.即学即练这是我第一次见到他. This is I have seen him.第一次见到他,我就爱上了他. I loved him I saw him.Step3: DiscussingSs discuss language points above in groups and try to memorize them in class.Step4:PresentingStep5:EvaluatingStep6:Testing1. There, in the ancient temple, used to _a big bell, which is now missing.A. happen B. e C. exist D. stand2. If a man _ succeed, he must work as hard as he can. A. will B. is to C. is going to D. should3._ other persons, the peasant worker has made a lot of money this year. A. Unlike B. Because of C. Without D. Instead of4. You can only borrow two books from the library _.A. in time B. on time C. at a time D. in no time5. -Will you go swimming with me this weekend? -_.A. All depend B. It depends C. It depends on D. All depends on6._ they are closest friends is not clear though they live together. A. That B. If C. What D. Whether7. It is obvious to the students _ they should get well prepared for their future.A. as B. which C. whether D. that 8. It is a pity that he _ so careless.A. was B. will be C. should be D. can be9._ she said suggested that she hadnt decided _ to go or not.A. Whatif B. Thatif C. Whatwhether D. Thatwhether10. Where and how we can get such a sum of money _ a big problem. A. is B. are C. was D. were11. Everyone knows smoking is _ to their health, but many of them cant bear themselves away from it. A. harmful B. good C. helpful D. bad12. The custom of arranged marriage still _ in many countries. A. appearsB. lays C. lives D. exists13. The boy _ on the blanket _ to his mother that he didnt take the money _ on the table.A. lied; lay; lain B. laid; laid; lied C. lay; lied; lying D. lying; lied; laid14. It matters little _ a man dies, but _ matters much is _ he lives.A. how; what; how B. how; it; how C. why; it; why D. that; what; that15. It is _ you deal with difficulties that shows_ you are really like.A. what; what B. how; that C. which; how D. how; what
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