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1、人教版英語精品資料（精修版） 第三冊第四單元第三課時(shí)詞匯導(dǎo)學(xué)案 BOOK3 Unit 4 Astronomy: the science of the stars Language acquaintance（2） Learning Goals: 1. Learn some useful words and expressions 2. Understand the text better 3. Consolidation of the language points. Previewing(預(yù)習(xí)) Task1:補(bǔ)全下面的短語 1. ________ time 及時(shí)；終于

2、 2. _______ eggs 下蛋 3. give birth ______ 產(chǎn)生；分娩 4. ________ one’s turn 輪到某人；接著 5. prevent….from _________ 阻止；制止 6. block _______ 擋住（光線） 7. cheer ______ 感到高興 8. ________ that 既然 9. break ________ 突發(fā)；爆發(fā) 10. watch ______ 密切注視；當(dāng)心 11. cool _____ 冷卻

3、 12. as ______ as 也；還有… 13. depend ______ 依靠；依賴 14. get close ____ 靠近 Task2:用括號中所給提示翻譯下列句子。 (1)移動(dòng)電話使得我們不論在何處都能與他人交談。(make it possible for sb. to do sth.) 譯： (2)請你告訴我怎樣防止這種事情發(fā)生好嗎？(prevent ... from .

4、.. ) 譯： (3)更重要的是，我是個(gè)樂觀的人。（what is more important is……） 譯： (4)既然你長大了，就不應(yīng)該依靠你的父母。(now that…) 譯：

5、 Step 1: Lead-in Play a game to check what we have learnt yesterday. Research in class(課堂探究) Step2:Thinking 1. They laid eggs too and existed on the earth for more than 140million years. exist vi.存在 生存 existing adj. 現(xiàn)存的 existence n. 存在 生存 exist in 存在…之中 exist on 靠…為生 exist by

6、 靠…生存 come into existence 開始存在，成立 bring into existence 使發(fā)生，產(chǎn)生 (1) It was impossible for them to such a small income. (2) Some spelling mistakes your article (3) The wild man hunting wild animal in the forest. There exists/existed …某地有…… There exist two huge stone lion

7、s at our company gate. 翻譯： 。 2. …because they gave birth to young baby animals and produced milk to feed them. give birth to 產(chǎn)生；分娩 她生了一個(gè)健康漂亮的女孩. She gave birth to a fine healthy girl. 有關(guān) birth的短語: by birth He is French by birth. a second birth= rebirth

8、 God gave him a second birth at birth be of noble/ good birth 介詞填空 It was reported that a woman gave birth five babies at a time. She was French birth but lived most of her time in England. The baby was only 2,000 grams birth. 即學(xué)即練： 1．He gave _

9、__ to a strange idea in his mind that he would give up schooling and went in for business. A. hand B. birth C. thought D. on birth 2. She is good at singing and dancing , so she is a good actress ________. A. at birth B. by birth C. to birth D. on birth 3. Thus the

10、y have, in their turn, become the most important animals on the planet 1) Thus adv. 因此；從而 She studied hard, ____________________. He forgot to turn on the radio and _____________________. 2) In one’s turn 輪到某人 It will be _______________ to be on duty tomorrow. 有關(guān)turn 的短語 in turn _________

11、by turns _________ take turns __________ in return _________ It’s one’s turn to do sth. 輪到某人做某事。 The children called out their names in turn.譯： 。 We take turns to sweep our classroom = We sweep our classroom _________ 即學(xué)即練： （1）People attempt to avoid public tra

12、nsportation delay by using their own cars, and this _____creates further problems. A. in short B. in case C. in doubt D. in turn （2）If we had driven all the way, you wouldn’t have been so much tired. A. in return B in turns C. by turns

13、 D. in our turn. （3）If we smile at life, life will smile on us . A. by turns B. in turn C. in return D. in our turn 4. …which prevents heat from escaping from prevent sth./ sb. (from) sth./doing sth. 阻止某人／某物做某事 同義詞組： stop… (from)… keep…from…（此處from不能?。?/p>

14、 Protect sb. from 保護(hù)某人不受……侵襲，擋住，防御 我們被阻止在課室吃早餐． 譯： 即學(xué)即用： The snowstorm prevent the work from _________ on time. A. finishing B. finished C. being finished D. to finish 5….millions of years to come will depend on depend on sb. 依

15、靠,相信某人 depend on sth. 取決與某物 我們都靠你來做決定了．We’ll all _______________to make a decision. 明天是否能開校運(yùn)會(huì)取決與天氣． Whether to hold the sports meeting or not will _______________________. Step2：Discussing Step3：Presenting Step4：Evaluating Step5：Testing 單項(xiàng)選擇 1. — Could I have another cup of coffee,

16、Daddy? —_____ It will be hard for you to go to sleep tonight if you do. A. Better not. B. Why not? C. What for? D. As you wish. 2. Zhang Heng, one of _____ best-known Chinese astronomers, showed a strong interest in _____ astronomy as a child. A. the; the B. the; 不填

17、C. 不填; the D. 不填; 不填 3. Without gravity, we _____ walk on the ground as freely as we do now. A. couldn’t B. mustn’t C. shan’t D. needn’t 4. Simon was _____ why many of his friends didn’t turn up at his birthday party. A. limited B. crashed C. spotted D.

18、puzzled 5. Though I was tired out that evening, I _____ from falling asleep by the great pain in my knee. A. was prevented B. had prevented C. has prevented D. am prevented 6. See the model ship _____ in the pool? That’s what my father made for me last weekend. A. float B. fl

19、oating C. floated D. to float 7. Jack was in low spirits those days and his friends did all they could _____ him up. A. cheer B. cheering C. cheered D. to cheer 8. There is a peaceful and calm _____ in the country, quite different from that of a big city. A. climate

20、 B. atmosphere C. system D. situation 9. It was almost midnight when a fire _____ in the neighborhood. A. blocked out B. turned out C. broke out D. died out 10. _____ life exists on any other planet in the solar system still remains a question. A. Why B. Whether

21、 C. How D. Where 11. Most of the evidence was destroyed in the fire. _____, it would be almost impossible to prove Jim guilty. A. Anyhow B. However C. Besides D. Thus 12. _____ you have worked out the first problem, you may go on to work on the second. A. Even if B. Unless

22、 C. Now that D. Though 13. —May I have a look at your necklace? —Sure. But be _____ with it — it’s made of glass and breaks easily. A. violent B. fundamental C. gentle D. genuine 14. In my view, choosing the right bike _____ what you want to use it for. A. depends on

23、B. does with C. belongs to D. accounts for 15. Water, _____ we cannot live, exists in the form of liquid, gas or solid. A. from which B. on which C. by which D. without which Grammar：主語從句 考點(diǎn)一 英語中的主語從句(the subject clause)在句中作主語，有以下兩種結(jié)構(gòu)： 1)主語從句位于句首。如： What h

24、e wanted to see was an end tO all the wars of the world． 他想要看到的是世界上所有戰(zhàn)爭的結(jié)束。 2)主語從句位于句尾，使用先行詞it作形式主語。如： It was right that the temple was rebuilt． 廟被改建了，這很好。 在下列情況下，一般使用形式主語it，而將真正的主語從句放在后面： ①謂語部分含有seem，appear，be(im)possible，be a pity，be a wonder，be likely等。如： It appeared to scien

25、tists on the earth that the stars had moved． 在地球上的科學(xué)家看來，這些星球已經(jīng)移動(dòng)了。 It’s a wonder that you recognized me． 你能認(rèn)出我來，真是奇怪。 ②在It is known…；It is said…；It is hoped…；It is believed…等慣用的被動(dòng)結(jié)構(gòu)中。如： It is believed that before writing was developed，people in China used to keep records by putting a nu

26、mber of stones together． 人們認(rèn)為在文字發(fā)明之前，中國人靠把許多石頭聚集在一起來作記錄。 需要注意的是：當(dāng)主語從句放在句尾而用形式主語時(shí)，形式主語只能用it，而不能使用this，that等代詞。 主語從句的連接詞可以分為以下三類： 1)that。whether(if) 連接詞that本身沒有意義，不作句子成分，只表示從旬的開始，位于句首時(shí)，that不能省略；whether(if)含有“是否”的意思，whether可以加上“or not”，其語意不變。whether和if也有不同的用法，如果主語從句位于句首則必須用連接詞whether，不用if。如：

27、Whether we’ll go camping tomorrow depends on the weather． 明天我們是否去野營取決于天氣情況。 2)what，who，which，whose，when，where，why，how這一類連接詞，除了可以引導(dǎo)主語從句之外，在從句中 又分別起代詞、副詞或形容詞的作用，在從句中分別作主語、賓語、表語、狀語和定語等。what，wh0，which，whose等又稱為連接代詞；when，where，why，how等又稱為連接副詞。試比較：Who will do it doesn’t matter．(連接代詞who在從句中作主語) 誰要做這件事沒關(guān)

28、系。 What we need is more water．(連接代詞what在從句中作need的賓語) 我們所需要的是更多的水。 Which of the two is better remains to be seen．(連接代詞which在從句中作主語) 這兩者中哪個(gè)更好尚待分曉。 When we will start the work is important．(連接副詞when在從句中作時(shí)間狀語) 我們什么時(shí)候開始工作很重要。 Where the library is to be built has not been decided yet．(連接副詞where在從句中

29、作地點(diǎn)狀語) 圖書館要建在哪里還未決定。 Why she was late for school is quite clear now．(連接副詞why在從句中作原因狀語) 她上學(xué)遲到的原因現(xiàn)在看來很清楚。 Which plan is better will be announced later．(which在從句中作名詞plan的定語) 哪個(gè)計(jì)劃更好稍后會(huì)宣布。 3)whatever，whoever，whomever，whichever whatever等連接詞與what等連接代詞的用法一樣，只是具有較強(qiáng)的語意，有“凡是，不管，無論……”等意思。如：Whatever he sa

30、id wasn’t true． 他說的任何事情都不是真的。 Whoever guesses what I have in my hand may have it． 不管誰猜對了我手里拿的是什么，這東西就給他(她)。 Whichever book you choose is yours． 無論你選中哪本書都?xì)w你。 Practising 1.________ makes mistakes must correct them. A. What B. That C. Whoever D. Whatever 2. It worried her a bit ____

31、her hair was turning grey. A. while B. that C. if D. for 3.When and why he came here ________ yet. A. is not known B. are not known C. has not known D. have not known 4. ________ is no reason for dismissing her. A. Because she was a few minutes late B. Owing to a few minutes

32、 late C. The fact that she was a few minutes late D. Being a few minutes late 5. ________ Tom liked to eat was different from ________. A. That…that you had expected B. What …that you had expected C. That…what you had expected D. What…what you had expected 6.________ we go swimming e

33、very day ________ us a lot of good. A. If...do B. That...do C. If...does D. That...does 7. It’s uncertain ________ the experiment is worth doing. A. if B. that C. whether D. how 8.________ the boy didn't take medicine made his mother angry. A. That B. What C. How D. Which

34、9.____ we can't get seems better than ____ we have. A. What, what B. What, that C. That, that D. That, what 10.____ you don't like him is none of my business. A. What B. Who C. That D. Whether 11.____ we'll go camping tomorrow depends on the weather. A. If B. Whether C. Th

35、at D. Where 12._________is going to do the job will be decided by the Party committee. A. That B. Why C. How D. Who 13._______we'll finish translating the book depends on the time. A. When B. Why C. What D. That 14.______he won't go there is clear to all of us. A. How B.

36、 What C. Why D. This 15.______the house will be built will be discussed at tomorrow's meeting. A. If B. Where C. That D. What 16. ._______you come or not is up to you. A. What B. If C. Why D. Whether 17._______team will win the match is a matter of public concern. A. Which B. That C. If D. How 18.________leaves the room last ought to turn off the lights. A. Anyone B. The person C. Whoever D. Who