1、【学习目标】重点单词astronomy, system, religion, theory, atom, billion, globe, violent, carbon, atmosphere, unlike, fundamental, harmful, acid, chain, multiply, oxygen, exist, thus, dioxide, puzzle, biology, biologist, gravity, satellite, gentle, physicist, climate, crash, spaceship, pull, float, mass重点短语sola
2、r system, in time, preventfrom, depend on, lay eggs, give birth to, in ones turn, carbon dioxide, block out, cheer up, now that, break out, watch out重点语法Noun Clauses as the subject: Noun Clauses as the subject is also called the Subject Clause. That means a Noun Clause serves as Subject in the sente
3、nce. The words which are used in this Noun Clause are: that, whether, who, what, which, when, where, how, why, etc. 【课前预习】1. astronomy n. 天文学astronomer n. 天文学家2. system n. 系统；体系；制度systemic adj. 系统的；涉及全系统的3. religion n. 宗教；宗教信仰religious adj. 宗教的 4. theory n. 学说；理论5. violent adj. 猛烈的；激烈的；强暴的violence n
4、. 暴力；暴行6. unlike prep. 不同；不像 likely adj. 很可能的7. harmful adj. 有害的harm n. 有害8. multiply vi. 散布;扩大;延伸21. method n. 方法22. mass n. 质量；团；块；大量；(前加 the) 群众23. cheer vt. violence【解析】本题主要考查重要词汇的用法。【经典句式】1. It exploded loudly with fire and rock, which were in time to produce the water vapour, carbon dioxide, o
5、xygen, nitrogen and other gases, which were to make the earth s atmosphere. 它与火和岩石一起猛烈地爆炸，这些物质及时产生水蒸汽、二氧化碳、氧、氮和其他气体，这些气体会形成地球的大气层。2. That made it possible for life to begin to develop. 那使得生命的初始发展成为可能。3. But when I tried to step forward I found I was carried twice as far as on the earth and fell over. 但当我试图前进时，我发现我被抬到在地面上的两倍，跌倒了。4. The earth became so violent that it was not clear whether the shape would last or not. 地球晃动剧烈，不清楚地球是否能够维持它的形状。翻译下列句子。1. 既然你的工作已经做完了，最好休息一下吧。2. 我们图书馆里的书比你们图书馆里的书多五倍。3. 我们的城市今年的降雨量是去年的两倍。4. 她们这样做是为了鼓励人们为她们的球队加油。5. 一旦他下定决心，谁也阻止不了他执行这个计划。【答案】【解析】本题主要考查本单元重点句型的用法。
