in the end made the 5._______ (earth) atmosphere.

　　Then the earth cooled down, and water, one of the earth's special 6.__________ (quality), appeared and stayed on the earth, which made it possible for life to begin to develop.Some small plants growing in the water appeared on the earth's surface, followed by land animals,7.__________ (include) insects, amphibians, reptiles and the most important animals called dinosaurs.

　　Finally dinosaurs disappeared all of 8.__________

　　sudden and some small clever animals 9._____ _____ hands and feet appeared and spread all over the earth.In place of dinosaurs they became the10.__________ (important) animals on the planet — that is, human beings.

　　【答案】1.beginning　2.combined　 3.producing 4．which　5.earth's 　 6.qualities　7.including　8.a 9．with　10.most important 1．harmful adj.有害的 【考点激活】 ①Many wastes produced in the producing process are______________ as well. 在生产过程中产生的很多废物也是有害的。(2015江苏) (1)be harmful to sb./sth.　对某人/某物有害 (2)do harm to sb./do sb.harm　对某人有害 do more harm than good　弊大于利；害多利少 (3)There is no harm in doing sth. ＝It does no harm (for sb.) to do sth.　做某事没有坏处 (4)harmless　adj.无害的 【知识建构】

　　They can do more harm than good to family relationships. 对家庭关系而言，他们弊大于利。 There is no harm in making an apology to him first. 先向他道歉没有什么坏处。

【2017届高考英语一轮复习《全优课堂》模块知识总复习课件：必修3 unit 4《Astronomy：the science of the stars》（新人教版）】相关文章：

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