1、人教新课标高中英语必修三Unit4AstronomythescienceofthestarsUnit4Astronomythescienceoft05150031第三册第四单元第三课时词汇导学案B00K3 Unit 4 Astr onomy: the scie nee of the starsLan guage acqua intance (2)Lear ning Goals:1. Lear n some useful words and expressi ons2. Un dersta nd the text better3. Con solidati on of the Ian guage
2、 poin ts.Previewing(预习)Task1:补全下面的短语1. time 及时；终于2. eggs 下蛋3. give birth 产生；分娩4. one s turn 轮到某人；接着5. p revent .from 阻止；制止6. block 挡住(光线)7. cheer 感到高兴8. that 既然9. break 突发；爆发10. watch 密切注视；当心11. cool 冷却12. as as 也；还有13. depe nd 依靠；依赖14. get close 靠近Task2:用括号中所给提示翻译下列句子。(1) 移动电话使得我们不论在何处都能与他人交谈。 (mak
3、e it possible for sb. to dosth.)译:(2)请你告诉我怎样防止这种事情发生好吗？译：(preve nt . from .) 更重要的是，我是个乐观的人。 (what is more important is -)译：(4)既然你长大了，就不应该依靠你的父母。译：(now that )Step 1: Lead-i nPlay a game to check what we have lear nt yest erday.Research in class( 课堂探究)Step2:Thi nki ng1. They laid eggs too and existed
4、on the earth for more than 140million years.exist vi. 存在 生存 existing adj.现存的 existe nee n.存在生存exist in存在之中 exist on靠为生exist by靠生存come into existe nee 开始存在，成立 bring into existe nee使发生，产生(1) It was impossible for them to such a small in come.(2) Some spelli ng mistakes your article _(3) The wild man h
5、unting wild ani mal in the forest.There exists/existed 某地有 There exist two huge stone lions at our compa ny gate.翻译： 。2. because they gave birth to young baby animals and produced milk to feed them. give birth to 产生；分娩她生了一个健康漂亮的女孩.She gave birth to a fine healthy girl.有关birth 的短语：by birth He is Fren
6、ch by birth.a sec ond birth= rebirth God gave him a sec ond birthat birth be of n oble/ good birth 介词填空It was reported that a woma n gave birth five babies at a time.She was French birth but lived most of her time in En gla nd.The baby was only 2,000 grams birth.即学即练：1. He gave to a strange idea in
7、his mind that he woul d give up schooling andwent in for bus in ess.A. hand B. birth C. thought D. on birth2. She is good at singing and dancing , so she is a good actress .A. at birth B. by birthC. to birth D. on birth3. Thus they have, in their turn, become the most importa nt ani mals on the pla
8、net1) Thus adv. 因此；从而She studied hard, .He forgot to turn on the radio and .2) In o ne s turn 轮到某人It will be to be on duty tomorrow.有关turn 的短语in tur n by tur ns take turns in return It s one s turn to do sth. 轮到某人做某事。The childre n called out their n ames in turn. 译:We take turns to sweep our classro
9、om = We sweep our classroom即学即练：(1) People attempt to avoid public transportation delay by using their own cars,and thiscreates further problems.A. in short B. in case C. in doubt D. in turnall the way, you wouldn t have been so much tired.A. by turnsC. i n return4. which prevents heat from escaping
10、 frompreve nt sth./ sb. (from) sth./doi ng sth. 阻止某人/某物做某事同义词组：stop (from)keepfrom(此处 from 不能省)Protect sb. from 保护某人不受 侵袭，挡住，防御我们被阻止在课室吃早餐.译：即学即用：The sno wstorm preve nt the work from on time.A. finishing B. fini shed C. being fini shed D. to finish5 .milli ons of years to come will depe nd ondepend
11、 on sb. 依靠,相信某人depe nd on sth. 取决与某物我们都靠你来做决定了. we ll all to make a decision.明天是否能开校运会取决与天气.Whether to hold the sports meet ing or not will Step2 :Discuss ingStep3 :Prese ntingStep4 :Evaluati ngStep5 :Test ing单项选择1. Could I have ano ther cup of coffee, Daddy? It will be hard for you to go to sleep t
12、oni ght if you do.A. Better not. B. Why not?C. What for? D. As you wish.2. in terestZhang Heng, one of best-known Chinese astronomers, showed a strongin astr onomy as a child.A. the; the B. the; 不填C.不填;the D. 不填；不填3. Without gravity, we walk on the gro und as freely as we do now.A. couldn t B. mustn
13、 tC. shan t D.needn t4. Simon was why many of h is friends didn t turn up at his birthday party.A. limited B. crashedC. spotted D. puzzled5. Though I was tired out that evenin g, I from falli ng asleep by the greatpain in my kn ee.A. was preve nted B. had preve ntedC. has preve nted D. am preve nted
14、6. stSee the model ship in the pool? That s what my father made for me laweeke nd.B. A. floatC. floated7. Jack was in low spirits those days and his friends did all they couldhimfloat ingD. to floatup.B. A. chee rC. cheeredcheeri ngD. to cheer8. There is a peaceful and calm in the coun try, quite di
15、ffere nt from that ofa big city.A. climate B. atmosphereC. system D. situati on9. It was almost midni ght whe n a fire in the n eighborhood.A. blocked out B. turned outC. broke out D. died out10. life exists on any other planet in the solar system still remains aquestio n.A. Why B. Whether C. How D.
16、 Where11. Most of the evidence was destroyed in the fire. , it would be almostimpossible to prove Jim guilty.12. you have worked out the first problem, you may go on to work on the second.A. Even if B. Un lessC. Now that D. Though13. May I have a look at your necklace?Sure. But be with it it s made
17、of glass and breaks easily.A. viole nt B. fun dame ntalC. gen tle D. genuine14. In my view, choos ing the right bike what you want to use it for.A. d epends on B. does withC. bel ongs to D. acco unts for15. Water, we cannot live, exists in the form of liquid, gas or solid.A. from which B. on whichC.
18、 by which D. without whichGramma: 主语从句考点一 英语中的主语从句(the subject clause) 在句中作主语，有以下两种结构：1) 主语从句位于句首。如：What he wan ted to see was an end tO all the wars of the world .他想要看到的是世界上所有战争的结束。2) 主语从句位于句尾，使用先行词 it作形式主语。如：It was right that the temple was rebuilt .庙被改建了，这很好。在下列情况下，一般使用形式主语 it，而将真正的主语从句放在后面：1 谓语部
19、分含有 seem, appear, be(im)possible , be a pity , be a wonder , be likely 等。如：It appeared to scie ntists on the earth that the stars had moved .在地球上的科学家看来，这些星球已经移动了。It s a wonder that you recognized me .你能认出我来，真是奇怪。2 在 It is known ；It is said ；It is hoped ； It is belie ved 等惯用的被动 结构中。如：It is believed t
20、hat before writing was developed , people in China used to keep records by putt ing a nu mber of stones together .人们认为在文字发明之前，中国人靠把许多石头聚集在一起来作记录。需要注意的是：当主语从句放在句尾而用形式主语时，形式主语只能用 it，而不能使用this , that 等代词。主语从句的连接词可以分为以下三类：1)that 。 whether(if)连接词that本身没有意义，不作句子成分，只表示从旬的开始，位于句首时， that不能省略；whether(if) 含有是否
21、”的意思， whether可以加上or not ”，其语意不变。whether和if也有不同的用法，如果主语从句位于句首则必须用连接词 whether，不用if。如:Whether we II g o camping tomorrow depends on the weather明天我们是否去野营取决于天气情况。2）what , who, which , whose, when, where, why, how 这一类连接词，除了可以引导主语 从句之外，在从句中 又分别起代词、副词或形容词的作用，在从句 中分别作主语、宾语、表语、状语和定语等。 what, wh0, which , whose
22、等又称为连接代词； when, where , why,how等又称为连接副词。试比较： Who will do it doesn t matter . （连接代词 who在从句中作主语）谁要做这件事没关系。What we need is more water .（连接代词 what在从句中作 need的宾语）Where the library is to be built has not bee n decided yet我们所需要的是更多的水。Which of the two is better rema ins to be see n 这两者中哪个更好尚待分晓。When we will
23、start the work is important我们什么时候开始工作很重要。.（连接代词which在从句中作主语）（连接副词when在从句中作时间状语）（连接副词where在从句中作地点状语）（连接副词why在从句中作原因状语）（which在从句中作名词 plan的定语）图书馆要建在哪里还未决定。Why she was late for school is quite clear now她上学迟到的原因现在看来很清楚。Which pla n is better will be announced later 哪个计划更好稍后会宣布。3）whatever , whoever, whomev
24、er, whicheverwhatever等连接词与what等连接代词的用法一样， 只是具有较强的语意， 有凡是，不管,无论 ” 等意思。如： Whatever he said wasn t true .他说的任何事情都不是真的。Whoever guesses what I have in my hand may have it不管谁猜对了我手里拿的是什么，这东西就给他 （她）。Whichever book you choose is yours .无论你选中哪本书都归你。Practisi ng1. makes mistakes must correct them.A. What B. Tha
25、tC. Whoever D. Whatever2. It worried her a bit her hair was turning grey.3. Whe n and why he came here yet.A. is not known B. are not knownC. has not known D. have not known4. is no reas on for dismiss ing her.A. Because she was a few minu tes lateB. Owing to a few minutes lateC. The fact that she w
26、as a few minu tes lateD. Being a few minutes late5. Tom liked to eat was differe nt from .A. That that you had expectedB. What that you had expectedC. That what you had expectedD. What what you had expected6. we go swim ming every day us a lot of good.A. If.do B. That.do C. If.does D. That.does7. It
27、 s uncertain the experiment is worth doing.A. if B. that C. whether D. how8. the boy did nt take medici ne made his mother an gry.A. That B. What C. How D. Which9. we cant get seems better tha n we have.A. What, what B. What, thatC. That, that D. Th at, what10. you dont like him is none of my bus in
28、 ess.A. What B. Who C. That D. Whether11. well go camp ing tomorrow depe nds on the weather.A. If B. Whether C. That D. Where12. is going to do the job will be decided by the Party committee.A. That B. Why C. How D. Who13. well finish tran slat ing the book depe nds on the time.A. When B. Why C. Wha
29、t D. That14. he wont go there is clear to all of us.A. How B. What C. Why D. This15. the house will be built will be discussed at tomorrows meet ing.A. If B. Where C. That D. What16. . you come or not is up to you.A. What B. If C. Why D. Whether17. team will win the match is a matter of public concern.A. Which B. That C. If D. How18. leaves the room last ought to turn off the lights.
