高考英语一轮复习 Unit4 Astronomythe science of the stars课件 新人教必修3.ppt

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1、Unit 4 Astronomy:the science of the stars课堂考点清障课堂考点清障考考点点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.这种老虎正在一只一只地死去，它们迟早会灭绝的。这种老虎正在一只一只地死去，它们迟早会灭绝的。用法归纳用法归

2、纳in time及时；终于及时；终于on time准时；按时准时；按时in time总有一天总有一天对应训练对应训练(1)The train arrived _(准时准时).(2)Dont worry.Well _(及时赶到及时赶到 车站车站)for your train.on timeget to the station in time2021/8/11 星期三1(3)Work hard,and _(总有一天你总有一天你 会成功会成功).(4)If he started it now,_ (也不可能按时完成这项工作了也不可能按时完成这项工作了).考点考点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，要么是我必须去和他们交涉。要么是你，要么是我必须去和他们交涉。用法归纳用法归纳be to do将会，必定会，一定将会，必定会，一定be about to do即将做某事即将做某事对应训练对应训练(1)All these things _(一定会一定会)answered for.he wou

4、ld not finish it in timeyoull succeed in timeare to be2021/8/11 星期三2(2)Those first words were to change my world.(英译汉英译汉)_(3)What happened that day _ (注定要改变他以后的生活注定要改变他以后的生活).考考点点3.They laid eggs too and existed on the earth for more than 140 million years.(Page 26)This plant exists only in Australi

5、a.这种植物只产于澳大利亚。这种植物只产于澳大利亚。用法归纳用法归纳exist vi.存在存在;生存生存existing adj.已有；现存已有；现存existence n.生存；生活生存；生活对应训练对应训练(1)The old lady _(生活生活)only on rice,coffee and bread.was to change his life later我最先学会的这些单词改变了我的生活天地。我最先学会的这些单词改变了我的生活天地。exists2021/8/11 星期三3(2)The Roman Empire _(存在了存在了)for several centuries.(3)

6、One cannot exist without air.(替换替换)_(4)他是有史以来最好的演员之一。他是有史以来最好的演员之一。(汉译英汉译英)_考点考点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儿。什么都不能阻止我去那儿。用法归纳用法归纳prevent vi.&vt

7、.妨碍妨碍;阻止阻止prevent.(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.existedlive2021/8/11 星期三4对应训练对应训练(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?(汉译英汉译英)_(3)Her sudden arrival _(使使 他不能外出他不能外出).(4)He cut off the electricit

8、y quickly and _ _(阻止了一起事故阻止了一起事故).考考点点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.我喜欢解决难题。我喜欢解决难题。用法归纳用法归纳puzzle n.谜；难题谜；难题prevented anpreventedWhat prevented him from going?prevented him from going outaccident

9、2021/8/11 星期三5puzzle vt.&vi.(使使)迷惑；迷惑；(使使)为难为难puzzling adj.令人迷惑的令人迷惑的puzzled adj.困惑的困惑的puzzle n.难题；难解之事；谜难题；难解之事；谜对应训练对应训练(1)The womans illness _(难住了难住了)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)他的作为使我深感迷惑不解。他的作为使我

10、深感迷惑不解。(汉译英汉译英)_考点考点6.As a 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 expression2021/8/11 星期三6We put a curtain across the window to block out the sunlight.我们将窗帘横挂在窗子上以遮住阳光。我们将窗帘横挂在窗子上以遮住阳光。用法归纳用法归纳

11、block ou挡住挡住(光线光线 block up堵塞堵塞,挡住挡住对应训练对应训练(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 _(挡住挡住我我 的出路了的出路了).考点考点7.I cheered up immediately and floated weightlessly around in our spaceship cabin watching

12、 the earth become smaller and the moon larger.(Page 31)blocking my way outblock outblock out2021/8/11 星期三7Cheer up!Youll do better next time.振作点振作点!你下次会表现更好的。你下次会表现更好的。用法归纳用法归纳cheer vt.&vi.欢呼；使兴奋；喝彩欢呼；使兴奋；喝彩cheer n.欢呼；喝彩欢呼；喝彩cheers干杯干杯cheer up感到高兴；感到振奋感到高兴；感到振奋cheer on以欢呼声激励；为以欢呼声激励；为加油加油对应训练对应训练(1)

13、The good news of our football team winning the game _(使高兴使高兴)everybody who heard it.(2)_(振作起来振作起来)!The news isnt too bad.(3)I heard the _(欢欢呼呼声声)of the crowd,and I knew that the host team was winning.cheered upCheer upcheers2021/8/11 星期三8(4)The crowd _(欢呼欢呼)at the sight of the honoured guests motorc

14、ade.考点考点8.I cheered up immediately and floated weightlessly around in our spaceship cabin watching the earth become smaller and the moon larger.(Page 31)A balloon floated across the sky.有个气球从空中飘过。有个气球从空中飘过。用法归纳用法归纳float vi.&vt.(使使)浮动；浮动；(使使)漂浮漂浮 float n.漂浮物漂浮物float vt.&vi.建议建议;提出提出对应训练对应训练(1)The shi

15、p was _(漂浮漂浮)by the tide.cheeredfloated2021/8/11 星期三9(2)Can you see something red _(漂浮漂浮)in the distance on the water?(3)A feather _(随风飘落随风飘落).(4)木头漂浮在水上。木头漂浮在水上。(汉译英汉译英)_考考点点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 thr

16、ee times as big as mine.这个房间是我那个房间的三倍大。这个房间是我那个房间的三倍大。用法归纳用法归纳倍数加在倍数加在as.as之前之前倍数加在倍数加在more than之前之前倍数加在倍数加在the+名词之前名词之前对应训练对应训练(1)His farm is _(两倍两倍)as large as mine.Wood floats on water.floatingfloated down on the wind twice 2021/8/11 星期三10(2)The new building is four times _(高高)than the old one.(3

17、)The new park is _(三倍大三倍大)of the old one.(4)新大厅是旧大厅的两倍大。新大厅是旧大厅的两倍大。(汉译英汉译英)_考点考点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，我们把他送到医院去吧。既然他病了，我们把他送到医院去吧。用法归纳用法归纳now that既然既然since conj.既然既然in t

18、hat既然；因为既然；因为The new hall is twice as large as the old one.higherthree times the size2021/8/11 星期三11对应训练对应训练(1)_(既既然然)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.(英译汉英译汉)_(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既然恢复了健康既然恢复了健康,他就可以继续学习英语了。他就可以继续学习英语了。now that hes retired2021/8/11 星期三122021/8/11 星期三13