There is u in the word computer ．( )A．aB．anC．theD．/ 题目和参考答案——青夏教育精英家教网—

题目内容

2．There is _____"u"in the word"computer"．（　　）

A．

B．

C．

the

D．

分析在单词computer里有一个u．

解答答案：A 根据题意在单词computer里有一个u．主要考查不定代词a，an，the的用法．a用在以辅音字母开头，或以读作辅音的元音字母开头的单词前面，an用在以元音字母（a，e，i，o，u）开头，或以不发音的h字母开头的单词前面，an还用在发音以元音开头的单个字母前面，u的发音/ju/，发音不是以元音开头，故选A．

点评本题考查不定代词．熟练掌握a和an的区别、用法，是做题的关键．

练习册系列答案

13．It's very important that we all recycle （再利用）．In nature，everything （26）C again．For example，when an animal dies，it becomes （27）A animal's food．Nothing is wasted．But humans have created things like plastic bags（28）B can't be broken down by nature．Our rubbish kills animals and（29）A water and soil．（30）D we continue making too much rubbish，the problem will only get worse．If nature can't reuse the rubbish，we must recycle（31）C．
We should clean up the rubbish we've made because nature can't．
Recycling is also the right thing to do for another reason．The earth is rich in natural materials like water and trees，（32）A these materials are not endless．We use up our natural materials much （33）C than the earth is able to reproduce them．For example，each year we cut （34）B more that 6，000square miles of forest．But it takes an average of 25years for a new tree（35）D．
Recycling can help us save the earth，so let's take action right now．

26．A．use	B．using	C．is used	D．used
27．A．another	B．other	C．others	D．the other
28．A．who	B．which	C．how	D．where
29．A．pollutes	B．polluted	C．polluting	D．is polluted
30．A．When	B．Whether	C．Why	D．If
31．A．then	B．their	C．it	D．itself
32．A．but	B．so	C．and	D．or
33．A．fastly	B．fast	C．faster	D．fastest
34．A．out	B．down	C．in	D．up
35．A．grows	B．for growing	C．growing	D．to grow