人教版高一英语必修三专题之 单元整合 学案：Unit4 Astronomy：the science of the stars.doc

单元整合课标要求重点单词1_ n天文学2_ n系统；体系；制度3_ n宗教；宗教信仰4_ n学说；理论5_ n原子6_ pron& n& adj万亿；十亿7_ n球体；地球仪；地球8_ adj猛烈的；激烈的；强暴的9_ n碳10_ n大气层；气氛11_ prep与不同；不像12_ adj基本的；基础的13_ adj有害的14_ n酸15_ n链子；连锁；锁链16_ vi& vt乘；增加17_ n氧18_ vi存在；生存19_ adv因此；于是20_ n二氧化物21_ n谜；难题vt& vi（使）迷惑；（使）为难22_ n生物学23_ n生物学家24_ n万有引力；重力25_ n卫星；人造卫星26_ adj温和的；文雅的27_ n物理学家28_ n气候29_ vi& vt碰撞；坠落30_ n宇宙飞船31_ n& vt拉（力）；拖；牵引力32_ vi& vt（使）浮动；（使）漂浮n漂浮物重点短语1_太阳系2_及时；终于3_下蛋4_产生；分娩5_轮到某人；接着6_ 二氧化碳7_阻止；制止8_挡往（光线）9_感到高兴；感到振奋10_既然11_突发；爆发12_密切注意；当心；提防重点句型1.as a result of this，many scientists believe the earth may become _.许多科学家认为地球可能会因此变得太热而不适合生物生存。2but when i tried to step forward，i found i was carried _ on the earth and fell over.但是当我试着向前迈步的时候，我发觉我被送出去很远，步子的跨度竟是在地球上的两倍，因而我摔倒了。3.walking does need a bit of practice _ gravity has changed.重力改变了，看来走路也的确需要练一练了。重点语法noun clauses as the subject主语从句1_ it was to become was uncertain until between 4.5 and 3.8 billion years ago when the dust settled into a solid globe.2_ many scientists believe is that the continued presence of water allowed the earth to dissolve harmful gases and acids into the oceans and seas.3so _ life will continue on the earth for millions of years to come will depend on whether this problem can be solved.功能instructions（指示）1please pay attention to.请注意2please check that.请核实3please look at.请看4make sure that.务必5dont forget to.不要忘记6watch out for.当心7you need to.你需要8youd better.你最好9you must/mustnt.你必须/一定不要参考答案重点单词：1astronomy2system3religion4theory5atom6billion7globe8violent9carbon10atmosphere11unlike12fundamental13harmful14acid15chain16multiply17oxygen18exist19thus20dioxide21puzzle22biology23biologist24gravity25satellite26gentle27physicist28climate29crash30spaceship31pull32float重点词组：1solar system2in time3lay eggs4give birth to5in ones turn6carbon dioxide7preventfrom8block out9cheer up10now tha