1、2024/5/30人教版新课标2012届高三英语一轮复习基础知识核查课件系列：必修三Unit 4 Astronomy:the science of the stars2024/5/30知识点1.They were in time to produce carbon,nitrogen,water vapour and other gases,which were to make the earthsatmosphere.(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
2、迟早会灭绝的。用法归纳in time及时；终于on time准时；按时in time总有一天对应训练(1)The train arrived _(准时).(2)Dont worry.Well _(及时赶到车站)for your train.on timeget to the station in time2024/5/30(3)Work hard,and _(总有一天你会成功).(4)If he started it now,_(也不可能按时完成这项工作了).知识点2.They were in time to produce carbon,nitrogen,water vapour and o
3、ther 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。用法归纳be to do将会，必定会，一定be about to do即将做某事对应训练(1)All these things _(一定会)answered for.he would not finish it in timeyoull succeed in timeare to be2024/5/30(2)Those first words were
4、to change my world.(英译汉)_(3)What happened that day _(注定要改变他以后的生活).知识点3.They laid eggs too and existed on the earth for morethan 140 million years.(Page 26)This plant exists only in Australia.这种植物只产于澳大利亚。用法归纳exist vi.存在;生存existing adj.已有；现存existence n.生存；生活对应训练(1)The old lady _(生活)only on rice,coffee
5、 andbread.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。exists2024/5/30(2)The Roman Empire _(存在了)for several centuries.(3)One cannot exist without air.(替换)_(4)他是有史以来最好的演员之一。(汉译英)_知识点4.They are putting too much carbon dioxide into the atmosphere,which prevents heat from escaping from the earth into
6、 space.(Page 26)Nothing could prevent me from going there.什么都不能阻止我去那儿。用法归纳prevent vi.&vt.妨碍;阻止prevent.(from)doing防止；制止stop.(from)doing阻止keep.from doing阻止He is one of the best actors who ever existed.existedlive2024/5/30对应训练(1)What _(阻止)you from joining us last night?(2)什么事阻止了他去?(汉译英)_(3)Her sudden a
7、rrival _(使他不能外出).(4)He cut off the electricity quickly and _ _(阻止了一起事故).知识点5.How life began on earth is one of the biggestpuzzles that scientists found hard to solve.(Page 27)I like solving difficult puzzles.我喜欢解决难题。用法归纳puzzle n.谜；难题prevented anpreventedWhat prevented him from going?prevented him fr
8、om going outaccident2024/5/30puzzle vt.&vi.(使)迷惑；(使)为难puzzling adj.令人迷惑的puzzled adj.困惑的puzzle n.难题；难解之事；谜对应训练(1)The womans illness _(难住了)the doctor;he couldnt find the cause.(2)Im _(困惑)about what to do next.(3)She listened with a _(迷惑不解的表情)on her face.(4)他的作为使我深感迷惑不解。(汉译英)_知识点6.As a result of this e
9、vent,a great dust cloud formed in the sky blocking out the sunlight.(Page 29)What he did puzzled me greatly.puzzledpuzzledpuzzled expression2024/5/30We 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。用法归纳block ou挡住(光线block up堵塞,挡住对应训练(1)There are so many birds that they al
10、most _(遮住)the sky.(2)The tree is ancient and huge,and can _ (遮住)the sun.(3)Please move your car;its _(挡住我的出路了).知识点7.I cheered up immediately and floated weightlessly around in our spaceship cabin watching the earth become smaller and the moon larger.(Page 31)blocking my way outblock outblock out2024
11、/5/30Cheer up!Youll do better next time.振作点!你下次会表现更好的。用法归纳cheer vt.&vi.欢呼；使兴奋；喝彩cheer n.欢呼；喝彩cheers干杯cheer up感到高兴；感到振奋cheer on以欢呼声激励；为加油对应训练(1)The good news of our football team winning the game_(使高兴)everybody who heard it.(2)_(振作起来)!The news isnt too bad.(3)I heard the _(欢呼声)of the crowd,and I knew
12、that the host team was winning.cheered upCheer upcheers2024/5/30(4)The crowd _(欢呼)at the sight of the honoured guests motorcade.知识点8.I cheered up immediately and floatedweightlessly around in our spaceship cabin watching the earth become smaller and the moon larger.(Page 31)A balloon floated across
13、the sky.有个气球从空中飘过。用法归纳float vi.&vt.(使)浮动；(使)漂浮float n.漂浮物float vt.&vi.建议;提出对应训练(1)The ship was _(漂浮)by the tide.cheeredfloated2024/5/30(2)Can you see something red _(漂浮)in thedistance on the water?(3)A feather _(随风飘落).(4)木头漂浮在水上。(汉译英)_知识点9.But when I tried to step forward,I found I wascarried twice
14、as far as on the earth and fell over.(Page 31)This room is three times as big as mine.这个房间是我那个房间的三倍大。用法归纳倍数加在as.as之前倍数加在more than之前倍数加在the+名词之前对应训练(1)His farm is _(两倍)as large as mine.Wood floats on water.floatingfloated down on the windtwice2024/5/30(2)The new building is four times _(高)than the ol
15、d one.(3)The new park is _(三倍大)of the old one.(4)新大厅是旧大厅的两倍大。(汉译英)_知识点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。用法归纳now that既然since conj.既然in that既然；因为The new hall is twice as lar
16、ge as the old one.higherthree times the size2024/5/30对应训练(1)_(既然)you are grown up,you should not relyon your parents.(2)Now that he is well again,he can go on with his Englishstudy.(英译汉)_(3)How does he occupy himself _(既然他已退休了)?(4)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,他就可以继续学习英语了。now that hes retired
