英语人教必修3课件：Unit4单元重点小结

1、重点单词点短语重点句型 >重点语法 > 功能重点单词重点短语5重点句型重点语法功能 A单元重点小结1. astronomyn.天文学一»astronomer仏天文学家2. globe门球体;地球仪;地球f glob。】a©.全球性的;全世界的3. violenta".猛烈的;激烈的;强暴的-» violence 门暴力violentlyadv 猛烈地4. unlike prep.与不同;不像>like （反义词）"幺p>dislike口 &斤不喜欢5. harmfuladj.有害的harm门害处必对有害6. ex

2、ist存在;生存existence 门存在7. Puzzle几&兀（使）迷惑;（使）为难 n.谜滩题->puzzleda© 迷惑不解的& biology门生物学_»biologist门生物学家>biologicala©生物学的9.physicist门物理学家physical物理学的fphysics门物理，物理学重点单词重点短语 重点句型重点语法 功能1及时;终于in time2下蛋by eggs3 产生;分娩4 轮到某人.5 阻止;制止in one，s tum prevent .from6感到咼兴;感到振奋cheer up7 既然wat

3、ch out for8. 突发;爆发break out9 密切注意;当心;提防重点单词重点短语重点石I重点语法 ,:1 地球（开始）变得如此激烈动荡以至于不知道这种形状是否会继续 存在下去。；5The earth became so violent thatit was not clearwhether the shape would last or not.2. 这就产生了 一系列的反应，使得生命有可能开始发展了。I This produced a chain reaction, which made it possible for life to develop 3. 所以，在未来的数百万

4、年中，生命能否在地球上延续取决于这个问 题能否得到解决。So whether life will continueon the earth for millions ofyears to come will depend on whether this problem can be solved .4. 但我试着向前迈步的时候，我发觉自己被送出去很远，步子的跨度 竟是在地球上的两倍，因而我摔倒了。But when I tried to step forward,I found I was carried twice as “s on the earth and fell over.主语从句Wh

5、at it was to become was uncertain until between 4.5 and 3.8 billion years ago when the dust settled into a solid globe.it was not clear whether the shape would last or not.What is even more important is that as the earth cooled down,water began to appear on its surfaceIt was not immediately obvious that water was to be fundamental to the development of life.重点单词>重点短语_也山语近2>»功能:扌旨 示(Instructions)Please pay attention to . Please check that. Please look at.Mak