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1、BackNext课文的复习和知识点的讲解课文的复习和知识点的讲解?1.What it was to become was a mystery until the dust began to slowly combine into a ball around the sunmovingMoving around the sun现在分词做定语,表示一般的动作现在分词做定语,表示一般的动作Men breaking the law will be punished.一般的动作一般的动作I see the girl dancing in the room. 正在进行的动作正在进行的动作主语从句主语从句2
2、. The problem was that the earth became _ becauseIt was not clear whether the _ shape was to last or not. violentsolidViolent adj. 猛烈的,激烈的猛烈的,激烈的,暴力的暴力的 n. violence adv. violentlySolid n. 固体固体 solid, liquid, gas adj. 固体的;实心的固体的;实心的, 无空隙的;结实的,坚固的无空隙的;结实的,坚固的 It _ loudly with fire and rock, which _ to
3、 produce the _, _, _, _ and other gases,Which were to make earths _.Step3.explodedIn timeWater vapourdioxideoxygennitrogrnatomphere not late 及时;不迟及时;不迟她来得及回来准备晚饭她来得及回来准备晚饭She will be back in time to prepare dinner. in/out of time 合合/不合节拍不合节拍: The audience clapped in time to the music.Be to do :表示不可避
4、免要发生,必须会发生表示不可避免要发生,必须会发生In such a fierce competition, a person has to make every effortIf he _.A. has succeeded B. is to succeed C. would succeed D. will succeedBStep 4As the earth _, water began to _ on its_.Cool downappearsurfaceQuestion: why the earth was going to be different from other planets
5、 going around the world.1. It allowed the earth to dissolve _ gases.2. That made it possible for life begin to develop.harmfulSmoking _(对身体有害)对身体有害)peoples health.Is harmful toThe development of lifeThe development of life1.What scientists think is that the earth was different because of the _ of _
6、growing in the water on its surfacearrivalSmall plantsAbility: they _ and _ the oceans and seas_ _. This encouraged the _ of life.multipliedfilledwithoxygendevelopment_ and _(ability):_and_helped life to develop_appear _Ability:_for the first timeAbility: produced young _dinosaurs_ability: Produced
7、their young_shellfishAll sorts of fishGreen plantsTaking carbon dioxide from the atmosphereFilling the air with oxygenreptilesinsectsamphibiansBe able to . As well asLand animalsGenerally by laying eggsmammalsFrom within their boydies humans came into being and spread all over the world.What life de
8、veloped after mammals? developed new methods of growing food(3) What humans developed? developed new methods of hunting developed new methods of moving around(5) What humans developed ? (6) What problem are humans causing?putting carbon dioxide into the atmospherePrevent heat from escaping from the
9、earth. heat from the sun is trapped greenhouse effect and global warming temperature risesNextBack ice in the North Pole melts greenhouse effect and global warming sand stormWhether life will continue on the earth for millions Of years to come will depend on whether this Problem can be solved.Depend
10、 on : 依赖,依靠依赖,依靠It /that all depends那得看情况而定那得看情况而定alternative words and expressionshard or firmusing force to hurt or attackscientific study of the starsusually or widelystop fromnatural large object that circles the sunthe changes as plants or animals grow olderburstThe covering (of something)Way o
11、f doing thingsWord-consolidation-I Fill in the blankssolidviolentastronomygenerallyprevent fromplanetdevelopmentexplodesurfacemethodWord-consolidation-II2.Complete this passage with some of the above words.My friend Li Yanping was really very interested in _.he liked to watch changes in the moon,the
12、 only natural satellite of the earth through his telescope. One evening he thought he saw a huge comet _as it hit the moon. The _of the moon produced a lot of dust that became _like a large ball. It seemed as if it would multiply and become a new _.Li Yanping thought he was seeing the _of the universe until he noticed some dirt on his telescope!he was very disappointed.astronomyexplodesurfacesolidplanetdevelopmentWord-consolidation-III3.Put these words into the more suitable of the two boxes.Fierce
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