1、Book 3Unit 4Astronomy: the science of the stars词汇积累分层单词写作词汇1. prep.与不同;不像2. adv.因此,于是3. adj.温和的;文雅的4. n.气候答案1.unlike2.thus3.gentle4.climate阅读词汇1.astronomy n. 2.system n. 3.globe n. 4.atmosphere n. 5.fundamental adj. 6.chain n. 7.multiply vt. & vi. 8.gravity n. 9.satellite n. 10.physicist n. 11.crash
2、 vi. & vt. 12.spaceship n. 13.pull n. & vt. 14.float vi. & vt. n. 15.oxygen n. 答案1.天文学2.系统;体系;制度3.球体;地球仪;地球4.大气层;气氛5.基本的;基础的6.链子;连锁;锁链7.乘;增加 8.万有引力;重力9.卫星;人造卫星 10.物理学家11.碰撞;坠落12.宇宙飞船 13.拉(力);拖;牵引力14.(使)浮动;(使)漂浮漂浮物15.氧拓展词汇1. adj.猛烈的;激烈的;强暴的 n.暴力 adv.暴力地;猛烈地2. adj.有害的 n. & v.伤害 adj.无害的3. vi.存在;生存n.存在;
3、生存4. vi. & vt.(使)迷惑;(使)为难 n.谜;难题 adj.迷惑不解的 adj.令人迷惑的5. n.生物学 n.生物学家答案1.violent;violence;violently2.harmful;harm;harmless3.exist;existence4.puzzle;puzzled;puzzling5.biology;biologist高频短语1.及时;终于2.熟悉;掌握;理解3.产生;分娩4.轮到某人5.阻止;制止6.感到高兴;感到振奋7.既然8.突发;爆发9.密切注意;当心;提防10.挡住(光线)答案1.in time2.get the hang of3.give
4、birth to4.in ones turn5.prevent.from6.cheer up7.now that8.break out9.watch out for10.block out经典句型1.This produced a chain reaction,which(使生命的发展成为可能).2.(很多科学家所相信的是)the continued presence of water allowed the earth to dissolve harmful gases and acids into the oceans and seas.3.Last month I(我足够有幸有机会)to
5、 make a trip into space with my friend Li Yanping, an astronomer.4.When we get closer to the moon,we shall feel its gravity pulling us,but it will (不像地球的引力那么大).5.But when I tried to step forward,I found I was carried(地球上的两倍远)and fell over.6.walking does need a bit of practice(既然重力改变了).答案1.made it possible for life to develop2.What many scientists believe is that3.was lucky enough to have a chance4.not be as strong a pull as the earths5.twice as far as on the earth6.now that gravity has changed