高一英语astronomyPPT课件.ppt

Language points;1. What it was to become was uncertain until …;2. (sth) be to (do): 1. 不可避免要发生或必须发生。 They said goodbye, little knowing that they were never to meet again. She is to be honoured for this great work. ;3. They were in time to produce carbon,…, which were to make important is in time: 及时;最终 in time (for sth. /to do sth.): 及时；不迟 我迟早会遇见他. I’ll see him________. 她会及时回来准备晚餐. She will be back __________ prepare dinner. 你认为我们能及时赶上火车吗?; 与time相关的短语: on time 按时;准时 In no time 立刻,马上 at times 有时 at a time 每次;依次 once upon a time 从前 ;;allowed the earth to dissolve harmful gases… allow sb. to do…= permit sb. to do… My father doesn’t allow_________ at home. In fact he doesn’t _________________ anywhere at any time. 2) Harmful adj. Opp: harmless harm n. be harmful to sb./sth.= do harm to sb. /sth. 对…有害;6.This produced a chain reaction, which made it possible for life to develop. Chain reaction 连锁反应 Make it possible to do 使…. 成为可能 make it + adj.+(for sb.) to do sth. 组长让我们可以一起合作. The group leader ____________________________ 老师让他们很容易地明白那个问题. The teacher _______________________________.;7.They multiplied and filled the oceans and seas with oxygen, which encouraged the ;我那是第一次见到她. I saw her_______________ . 十年后,他第三次来到这里. Ten years later, he came here ______________ 这是我第二次见到他. It is_____________________________. 第一次见到他,我就爱上了他. I loved him _________________________. ;8. The laid eggs too and existed on the earth… exist in 存在与…之中 exist on 靠…为生 exist by 靠…生存 It was impossible for them to ________such a small income. The universe ________space. ;9. Remain 1)系动词. 保持, 仍然是 In fact, the work remained unfinished 2)remaining adj. 剩下的 The remaining students will serve for the audience. 3)Remain to be done 有待,尚待 It remains to be seen whether you are right. ;10. …which prevents heat from escaping from prevent (from) doing sth. 阻止…做某事 同义词组： stop… (from)…