必修3unit4howlifebeganontheearth學(xué)案-資料下載頁(yè)
2025-04-16 23:21本頁(yè)面
【正文】 學(xué)家相信，由于地球上長(zhǎng)期有水存在，使地球得以把有害氣體和酸性物質(zhì)溶解在海洋里。What many scientists believe 主語(yǔ)從句that 引導(dǎo)的是表語(yǔ)從句 allow/permit sb to do sth 允許某人做某事allow/permit doing sth 允許做某事dissolve harmful gases and acids into the oceans and seas.把有害氣體和酸性物質(zhì)溶解在海洋里。 dissolve…into… 把…溶解在… produced young generally by laying eggs.它們一般是通過孵蛋而繁衍后代的。by doing 用于說明做某事的手段、方式。He used to make his living by 。 are putting too much carbon dioxide into the atmosphere, which prevents heat from escaping from the earth into space.他們把過多的二氧化碳釋放到大氣層中，這使得地球上的熱不能釋放到太空中去。which prevents heat from escaping from the earth into prevent/stop…(from)doing sth 阻止…做某事=keep…from doing sthHis heart trouble didn’t prevent him (from) going to class the next day.他的心臟病沒能阻止他第二天去上課。Nothing can prevent their plans (from) being carried out.什么也不能阻止他們的計(jì)劃得以實(shí)施。 whether life will continue on the earth for millions of years to e will depend on whether this problem can be solved.所以，在未來(lái)的數(shù)百萬(wàn)年中，生命能否在地球上延續(xù)取決于這個(gè)問題能否得到解決。 whether life will continue on the earth for millions of years to e 主語(yǔ)從句whether this problem can be solved 賓語(yǔ)從句depend/rely on 依靠，依賴It (all) depends.=That depends. 視情況而定。
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