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1、2019-2020年高中英语Unit4Astronomy:thescienceofthestars教案3新课标人教版必修3Period 1 Grammar points.一语法要点 主语从句:在复合句中作主句的主语的从句叫主语从句。引导主语从句的词有连词that, whether;连接代词who, what, which;连接副词when, where, how, why等。 Eg: Which team will win the match is still unknown. 主语从句放在句首,句子常显得笨重,因此一般把它放到句子后面,前面用引导词”it”来作主语。 Eg: Its stra
2、nge that he didnt e yesterday.二重点难点1Nobody knew that it was going to be different from other planets going to be different from other planets going round the sun. going round the sun 为现在分词短语定语,表示一般的动作。 Eg: Men breaking the law will be punished. 现在分词短语,也可表示进行的动作2. Weather life will continue on the ea
3、rth for millions of years to e will depend on whether this problem can be solved. for millions of years to e 中不定式to e 作定语,与前面的名词有逻辑上的主谓关系。 Eg: She is the last person to tell lies.3The problem was that the earth became violent because it was not clear whether the solid shape was to last or not. The p
4、roblem was that , that 引导表语从句,that 只起连接作用,无意义,但不能省略。 Eg: The trouble is that we are short of money.4As the earth cooled down, water began to appear on its surface. asconj. 随着,在期间;由于,因为;尽管,即使;当的时候;像一样5. That made it possible for life to begin to develop. it 是形式主语,真正的主语是不定式to begin to develop. Eg: He
5、thinks its his duty to help others.三功能句型指示(Introductions)Please look at/ listen to Please pay attention to .Please check that Make sure you Dont forget to Watch out for You need Youd better You must/mustnt 四. 重点单词及短语 单词 atmospheren. 大气,空气,气氛 a friendly atmosphere友好的气氛 atmosphericadj. 大气的,有气氛的 violen
6、tadj. 剧烈的,厉害的;(人)暴戾的;(感情、言语)激昂的,激烈的violence n. 剧烈,暴行 violently adv. 激烈地,粗暴地 solid adj. n. 固体的;实质的;纯粹的;结实宾;牢靠的,稳固的 explode vt. vi. 爆炸,使爆炸;感情爆发;驳倒,推翻 explosionn. 爆发,爆炸 explosiveadj. 爆炸性的,爆发性的 surfacen. 外表,表面;adj. 表面的,外表的;vt. vi. 浮出水面,给装上表面 dissolvevt. vi. 使溶解,溶解;解散,消除,解除 dissolutionn. 解散,溶解 harmfuladj
7、. 有害的 harmn. v. 危害,伤害 harmlessadj. 无害的 harmlessnessn. 无害,无恶意,天真无邪 harmfullyadv. 有害地 harmlesslyadv. 无害地 spreadvt. vi. n. (使)张开,伸展,扩张;涂;散布,传播;(使)蔓延 existvi. 在,存在,生存 existencen. 存在;生活,生存 massn. 团,块,堆,众多,大量;pl. 群众,民众;质量短语in time迟早,最后 in time for sth./to do sth.及时,不迟prevent from阻止某人做某事(from 有时可省略,但在被动说现语态中不能省)depend on/up sth.依靠,指望;相信;取决于cheer up使某人高兴或更快乐now that既然,由于break out突然发生,逃出某地make sense of 理解,弄懂,有道理,有意义,理智的