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1、新课标人教版 Unit 4Astronomy：the science of the stars天文学：恒星科学核心词汇1Do you think our education_(制度)needs improving?2The_(气候)of southern Florida attracts thousands of tourists each winter.3Without practice there would be no_(理论)4The hen was old and it stopped_(下蛋)eggs.5. The idea_(存在)only in the minds of us
2、young people.6Professor Li has solved the_(难题)and everyone is cheering.7Mars_(万有引力)is only about 38% of Earths.8Raising your child to tell the difference between right and wrong is one of the f_tasks of parenthood.9用harm的适当形式填空(1)Air pollution will get worse and this will be_to people，for example，it
3、 can cause cancer.(2)Rubbish can be changed into_things.(3)Dont_your eyes by reading in the dim light.10Last night we had a discussion，which became more and more_.Finally we reached an agreement that we will never use_whatever happens.(violent)1.system2.climate3.theory4.laying5.exists 6.puzzle7.grav
4、ity8.fundamental9.(1)harmful,(2)harmless(3)harm10.violent；violence高频短语1_及时，终于2_ 下蛋3_ 产生；分娩4_ 轮到某人；接着5_ 阻止；制止6_ 挡住(光线)7_ 感到高兴；感到振奋8_ 既然9_ 突发；爆发10_ 密切注视；当心；提防1.in time2.lay eggs3.give birth to4.in ones turn5.prevent.from6.block out7.cheer up8.now that,9.break out10.watch out重点句式1_was uncertain until b
5、etween 4.5 and 3.8 billion years ago when the dust settled into a solid globe.随后它会变成什么没有人知道，直到3845亿年前，这团尘埃才慢慢地形成一个固体的球状物。2The earth became _ it was not clear whether the shape would last or not.地球变得如此猛烈，以至于它的形状能否持久还不清楚。3This produced a chain reaction，which _.这就产生了一系列的反应，使得生命有可能发展了。4We watched，_ on t
6、he outside of the spaceship as the earths gravity increased.我们惊奇地看着，随着地球引力的增加，宇宙飞船的外层燃烧起火。5But when I tried to step forward，I found I was carried _ on the earth and fell over.而当我试着向前迈步时，我发觉我被送出很远，步子的跨度竟是在地球上的两倍，因而我摔倒了。6“.walking does need a bit of practice _ gravity has changed.”“既然重力改变了，走路也确实需要练一练了
7、。”1.What it was to become2.so violent that3.made it possible for life to develop4.amazed as fire broke out,5.twice as far as6.now that知识详解1.existvi.存在，生存(回归课本P26)They laid eggs too and existed on the earth for more than 140 million years.它们也生蛋，在地球上生存了一亿四千多万年。归纳拓展(牛津P697)They cant exist on the money
8、hes earning.他们靠他挣的那点钱无法维持生活。There exists a good way to solve the existing problem in geography.有一个解决现存地理问题的好办法。No one knows how this world came into existence.没有人知道这个世界是怎样形成的。例句探源即境活用1完成句子(1)巴基斯坦在战后就以一个独立的国家存在了。Pakistan _ _ _ _ _ _country after the war.答案：came into existence as an independent(2)就我所知
9、，他们收入微薄，几乎无法维持生活。As far as I know，they are paid hardly enough_ _ _.答案：to exist on2.puzzlen谜；难题vt. & vi.(使)迷惑；(使)为难(回归课本P27)How life began on earth is one of the biggest puzzles that scientists found hard to solve.地球生命如何起源是科学家们觉得很难解决的最大的难题之一。归纳拓展(牛津P1616)What puzzles me is why he left the country wit
10、hout telling anyone.令我不解的是，他为什么悄悄地离开了这个国家。The police are still puzzling about/over how the accident could have happened.警察仍然正在苦思这起事故是怎么发生的。例句探源Scientists have been trying to solve this puzzle for years.多年来科学家们一直试图解开这一谜团。(牛津P1616)He looked puzzled so I repeated the question.他好像没听懂，于是我又把问题重复了一遍。2She l
11、ost heart since she failed in the exam.She felt_about her future.ApuzzleBpuzzlingCpuzzled Dpuzzles解析：选C。后句句意：她对她的将来感到迷惑。puzzled adj.(人)迷惑的，迷惘的；puzzling adj.(物)令人迷惑的。即境活用3.pulln. & vt.拉(力)；拖；牵引力(回归课本P30)As the rocket rose into the air，we were pushed back into our seats because we were trying to escap
12、e the pull of the earths gravity.随着火箭的升空，由于我们在努力挣脱地球的引力，我们被向后推在座位上。归纳拓展He pulled the door open and rushed out.他拉开门，冲了出去。(牛津P1604)The police car signalled to us to pull in.警车发出信号，要我们驶向路边停靠。We waved as the train pulled out of the station.火车驶出车站时我们挥手告别。The doctor told me that I would pull through.医生告诉我
13、，我会康复的。例句探源【高效记忆】3用pull down；pull in；pull out；pull through填空：(1)Houses were_to make way for a new highway.答案：pulled down(2)Cheer up！Take more exercise every day and you will_.答案：pull through即境活用(3)John_behind me and parked.答案：pulled in(4)Be careful when you _of the driveway.答案：pull out4.in time及时；终于，总有一天(回归课本P25)They were in time to produce carbon，nitrogen，water vapour and other gases，which were to make the earths atmosphere.最终产生了碳、氮气、水蒸气和其他多种气体，从而形成了地球的大气层。归纳拓展The kids will be leaving home in no time.孩子们很快就要离开家了。(朗文P2162)Will you be back in time for dinner?你会及时赶
