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1、Unit 4 Astronomy: the science of the stars課堂考點(diǎn)清障課堂考點(diǎn)清障考點(diǎn)考點(diǎn)1. They were in time to produce carbon, nitrogen, water vapour and other gases, which were to make the earths atmosphere. (Page 25)Tigers of this kind are dying off, and they will die out in time.這種老虎正在一只一只地死去，它們遲早會(huì)滅絕的。這種老虎正在一只一只地死去，它們遲早會(huì)滅絕的。

2、用法歸納用法歸納in time及時(shí)；終于及時(shí)；終于on time準(zhǔn)時(shí)；按時(shí)準(zhǔn)時(shí)；按時(shí)in time總有一天總有一天對(duì)應(yīng)訓(xùn)練對(duì)應(yīng)訓(xùn)練(1)The train arrived _ (準(zhǔn)時(shí)準(zhǔn)時(shí)).(2)Dont worry. Well _ (及時(shí)趕到及時(shí)趕到 車站車站)for your train.on timeget to the station in time(3)Work hard, and _(總有一天你總有一天你 會(huì)成功會(huì)成功).(4)If he started it now, _ (也不可能按時(shí)完成這項(xiàng)工作了也不可能按時(shí)完成這項(xiàng)工作了).考點(diǎn)考點(diǎn)2. They were in time

3、to produce carbon, nitrogen, water vapour and other gases, which were to make the earths atmosphere. (Page 26)Either you or I am to go to talk with them.要么是你，要么是我必須去和他們交涉。要么是你，要么是我必須去和他們交涉。用法歸納用法歸納be to do將會(huì)，必定會(huì)，一定將會(huì)，必定會(huì)，一定be about to do即將做某事即將做某事對(duì)應(yīng)訓(xùn)練對(duì)應(yīng)訓(xùn)練(1)All these things _(一定會(huì)一定會(huì))answered for.he

4、would not finish it in timeyoull succeed in timeare to be(2)Those first words were to change my world.(英譯漢英譯漢) _(3)What happened that day _ (注定要改變他以后的生活注定要改變他以后的生活).考點(diǎn)考點(diǎn)3. They laid eggs too and existed on the earth for more than 140 million years. (Page 26)This plant exists only in Australia.這種植物只產(chǎn)

5、于澳大利亞。這種植物只產(chǎn)于澳大利亞。用法歸納用法歸納exist vi.存在存在;生存生存existing adj.已有；現(xiàn)存已有；現(xiàn)存existence n.生存；生活生存；生活對(duì)應(yīng)訓(xùn)練對(duì)應(yīng)訓(xùn)練(1)The old lady _ (生活生活)only on rice, coffee and bread.was to change his life later我最先學(xué)會(huì)的這些單詞改變了我的生活天地。我最先學(xué)會(huì)的這些單詞改變了我的生活天地。exists(2)The Roman Empire _ (存在了存在了)for several centuries.(3)One cannot exist wi

6、thout air.(替換替換) _(4)他是有史以來最好的演員之一。他是有史以來最好的演員之一。(漢譯英漢譯英) _考點(diǎn)考點(diǎn)4. They are putting too much carbon dioxide into the atmosphere, which prevents heat from escaping from the earth into space. (Page 26)Nothing could prevent me from going there.什么都不能阻止我去那兒。什么都不能阻止我去那兒。用法歸納用法歸納prevent vi.& vt.妨礙妨礙;阻止阻止pre

7、vent.(from) doing防止；制止防止；制止stop.(from) doing阻止阻止keep.from doing阻止阻止 He is one of the best actors who ever existed.existedlive對(duì)應(yīng)訓(xùn)練對(duì)應(yīng)訓(xùn)練(1)What _ (阻止阻止)you from joining us last night?(2)什么事阻止了他去什么事阻止了他去?(漢譯英漢譯英) _(3)Her sudden arrival _ (使使 他不能外出他不能外出).(4)He cut off the electricity quickly and _ _ (阻止了

8、一起事故阻止了一起事故).考點(diǎn)考點(diǎn)5. How life began on earth is one of the biggest puzzles that scientists found hard to solve. (Page 27)I like solving difficult puzzles.我喜歡解決難題。我喜歡解決難題。用法歸納用法歸納puzzle n.謎；難題謎；難題prevented anpreventedWhat prevented him from going?prevented him from going outaccidentpuzzle vt.& vi.(使使)

9、迷惑；迷惑；(使使)為難為難puzzling adj.令人迷惑的令人迷惑的puzzled adj.困惑的困惑的puzzle n.難題；難解之事；謎難題；難解之事；謎對(duì)應(yīng)訓(xùn)練對(duì)應(yīng)訓(xùn)練(1)The womans illness _ (難住了難住了)the doctor; he couldnt find the cause.(2)Im _ (困惑困惑)about what to do next.(3)She listened with a _ (迷惑不解的表迷惑不解的表 情情)on her face.(4)他的作為使我深感迷惑不解。他的作為使我深感迷惑不解。(漢譯英漢譯英) _考點(diǎn)考點(diǎn)6. As a

10、 result of this event, a great dust cloud formed in the sky blocking out the sunlight. (Page 29)What he did puzzled me greatly.puzzledpuzzledpuzzled expressionWe put a curtain across the window to block out the sunlight. 我們將窗簾橫掛在窗子上以遮住陽光。我們將窗簾橫掛在窗子上以遮住陽光。用法歸納用法歸納block ou擋住擋住(光線光線 block up堵塞堵塞,擋住擋住對(duì)應(yīng)

11、訓(xùn)練對(duì)應(yīng)訓(xùn)練(1)There are so many birds that they almost _ (遮住遮住)the sky.(2)The tree is ancient and huge, and can _ (遮住遮住)the sun.(3)Please move your car; its _(擋住我擋住我 的出路了的出路了).考點(diǎn)考點(diǎn)7. I cheered up immediately and floated weightlessly around in our spaceship cabin watching the earth become smaller and the

12、moon larger. (Page 31)blocking my way outblock outblock outCheer up! Youll do better next time.振作點(diǎn)振作點(diǎn)!你下次會(huì)表現(xiàn)更好的。你下次會(huì)表現(xiàn)更好的。用法歸納用法歸納cheer vt.& vi.歡呼；使興奮；喝彩歡呼；使興奮；喝彩cheer n.歡呼；喝彩歡呼；喝彩cheers干杯干杯cheer up感到高興；感到振奮感到高興；感到振奮cheer on以歡呼聲激勵(lì)；為以歡呼聲激勵(lì)；為加油加油對(duì)應(yīng)訓(xùn)練對(duì)應(yīng)訓(xùn)練(1)The good news of our football team winning th

13、e game _ (使高興使高興)everybody who heard it.(2) _ (振作起來振作起來)!The news isnt too bad.(3)I heard the _ (歡呼聲歡呼聲)of the crowd, and I knew that the host team was winning.cheered upCheer upcheers(4)The crowd _ (歡呼歡呼)at the sight of the honoured guests motorcade.考點(diǎn)考點(diǎn)8. I cheered up immediately and floated weigh

14、tlessly around in our spaceship cabin watching the earth become smaller and the moon larger.( Page 31)A balloon floated across the sky.有個(gè)氣球從空中飄過。有個(gè)氣球從空中飄過。用法歸納用法歸納float vi.& vt.(使使)浮動(dòng)；浮動(dòng)；(使使)漂浮漂浮 float n.漂浮物漂浮物float vt.& vi.建議建議;提出提出對(duì)應(yīng)訓(xùn)練對(duì)應(yīng)訓(xùn)練(1)The ship was _ (漂浮漂浮)by the tide.cheeredfloated(2)Can yo

15、u see something red _ (漂浮漂浮)in the distance on the water?(3)A feather _ (隨風(fēng)飄落隨風(fēng)飄落).(4)木頭漂浮在水上。木頭漂浮在水上。(漢譯英漢譯英) _考點(diǎn)考點(diǎn)9. But when I tried to step forward, I found I was carried twice as far as on the earth and fell over. (Page 31)This room is three times as big as mine.這個(gè)房間是我那個(gè)房間的三倍大。這個(gè)房間是我那個(gè)房間的三倍大。用法

16、歸納用法歸納倍數(shù)加在倍數(shù)加在as.as之前之前倍數(shù)加在倍數(shù)加在more than之前之前倍數(shù)加在倍數(shù)加在the+名詞之前名詞之前對(duì)應(yīng)訓(xùn)練對(duì)應(yīng)訓(xùn)練(1)His farm is _ (兩倍兩倍)as large as mine. Wood floats on water.floatingfloated down on the wind twice (2)The new building is four times _ (高高)than the old one.(3)The new park is _ (三倍大三倍大)of the old one.(4)新大廳是舊大廳的兩倍大。新大廳是舊大廳的兩倍大

17、。(漢譯英漢譯英) _考點(diǎn)考點(diǎn)10.“Oh dear,” I cried, “walking does need a bit of practice now that gravity has changed.” (Page 31)Now that he is ill, lets take him to the hospital.既然他病了，我們把他送到醫(yī)院去吧。既然他病了，我們把他送到醫(yī)院去吧。用法歸納用法歸納now that既然既然since conj.既然既然in that既然；因?yàn)榧热?；因?yàn)門he new hall is twice as large as the old one.hig

18、herthree times the size對(duì)應(yīng)訓(xùn)練對(duì)應(yīng)訓(xùn)練(1) _ (既然既然)you are grown up, you should not rely on your parents.(2)Now that he is well again, he can go on with his English study.(英譯漢英譯漢) _(3)How does he occupy himself _ (既既 然他已退休了然他已退休了)?(4)既然你做了，你最好把它做好。既然你做了，你最好把它做好。 _Now that you do it,youd better do it well.Now that既然恢復(fù)了健康既然恢復(fù)了健康,他就可以繼續(xù)學(xué)習(xí)英語了。他就可以繼續(xù)學(xué)習(xí)英語了。now that hes retired