题目内容
18.How will our continuously growing population affect our way of life,our environment,even our planet?No matter how you look at it,we will face (41)anextremely serious problem.By the middle of the 21st century,we (42)will have used(use) up all the oil that drives our cars if at the rate we're going.Even if scientists develop some new (43)ways(way)of feeding the human race,the crowded conditions on the earth will make (44)Itnecessary for us to look for open space somewhere else.But none of the planets in our solar system are able (45)to support(support) life at present.One possible solution (46)tothe problem,however,has recently been suggested by an American scientist,Professor Carl Sagan.His idea is (47)thatbefore the earth's resources are almost exhausted,it will be (48)totally(total)possible to change the atmosphere of Venus(金星)and so create a new world almost as large as earth itself.However,(49)beforehis idea is turned into reality,humans have a long way to go.On the one hand,Venus is much (50)hotter(hot)than the earth; on the other hand,there is only a tiny amount of water there.
分析 考查用法填空,文章大意:我们不断增长的人口将如何影响我们的生活方式,我们的环境,甚至我们的星球?有什么解决办法?
解答 41.an,考查冠词,泛指一个严重问题,extremely是以元音开头的,所以用an.
42.will have used,考查将来完成时态.根据时间状语By the middle of the 21st century,应该用将来完成时态.
43.ways,考查名词,way可数名词,前面有some,所以用复数.
44.It,不定式做宾语放在后面,前面需要用it坐形式宾语.
45.to support,考查不定式,be able to do,所以用不定式.
46.to,考查介词,"解决问题的方法"用"the solution to the problem",所以用to.
47.that,考查连词,that引导表语从句,布做成分,没有含义.
48.totally,修饰形容词应该用副词.
49.before,考查连词,根据句意"在她的想法变成现实之前,人类还有很长的路要走",用before.
50.hotter,后面有than,前面需要用比较级.
点评 本题主要考查了用单词或短语的适当形式填空.做本题的关键是在理解短文的基础上,灵活运用所学的基础知识.本题考到的知识点有:固定的短语,词类的转换,名词的复数形式,副词以及祈使句的用法等.因此,这就需要在平时的学习中,牢固掌握各语言点及一些语法知识.
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