About of the earth covered with water,but we have less and less available fresh water.

A. three-fourth;is B. three-fourths;is

C. three-fourth;are D. three-fourths;are

B 【解析】试题分析：句意为：地球大约四分之三被水覆盖。但是我们拥有的可用淡水越来越少。分数的表达：分子用基数词，分母用序数词，当分子大于一时，分母应加“s”。根据语境，这里主语为单数概念，根据主谓一致原则，谓语动词也应用第三人称单数。故应选B。

I like Persian cats(波斯猫) they are beautiful.

A. so B. and C. because D. but

C 【解析】句意：我喜欢波斯猫，因为它们是美丽的。A. so 所以； B. and 和； C. because 因为； D. but但是；根据I like Persian cats和they are beautiful.是表示原因，故选C

（江西省南昌市2015年中考英语试题）—Ben and Sue aren’t home, are they?

—No.They _____to London on business.

A. have gone B. go C. have been D. will go

A 【解析】试题分析：句意：――本和苏不在家，是不是？――是的，他们去伦敦出差了。A.have gone去了，没有回答；B.go（经常）去；C.have been去过，回来了；D.will go要去。从句意可知：他们去伦敦出差未回，故用have gone to。选A。

If you are planning a trip to a place of interest,you’d better look in your local library a book about it.

A. on B. at C. to D. for

D 【解析】句意：如果你计划去一个名胜古迹的地方旅游，你最好在当地图书馆找一本关于它的书。根据look on观看，旁观；look at看---；look to当心，注意；look for寻找；根据in your local library a book可知是找一本书；故选D

—Mom,I watched TV for only forty minutes.Sometimes TV is good for us.

—Forty minutes enough.Now you must do your homework.

A. watch;is B. watching;was C. watched;are D. watching;were

B 【解析】句意：——妈妈，我仅仅看了40分钟的电视，，有时看电视对我们有好处。——40分钟足够了，现在你必须做作业。根据 TV is good for us.可知这里缺少主语，动词做句子的主语用doing/to do，所以排除A/C；根据Forty minutes看做只一个整体，所以谓语动词用单数；故选B

Tim Cook called his mother every week even while he_______ around the world.

A. was traveling B. is traveling

C. traveled D. travels

A 【解析】试题分析：句意：蒂姆·库克每周都给他的母亲打电话，即使他正在环球旅行。while引导时间状语从句时，强调主从动作同时发生，从句中常用进行时态。本题主句是一般过去时态，故从句中用过去进行时态。选A。

—He be in the classroom， I think.

—No， he be in the classroom. I saw him go home a minute ago.

A. can； may not B. must； may not

C. may； mustn’t D. may； can’t

D 【解析】试题分析：句意：--我认为他可能在教室里。--不，他肯定没有在教室里，我刚才看到他回家了。must，can(could)，may(maight) 可以表示猜测，must 表示肯定猜测，用于肯定句，肯定······，一定······；can’t，表示否定猜测，肯定不······，另外can(could)，may(maight)，表示可能性猜测，可能······。根据I think，...

— angry Kangkang looks!What happened?

—He found his mother reading his diary when he returned home yesterday.

A. How B. What C. What an D. How an

A 【解析】句意：——康康看起来多么生气啊！发生什么事了？——昨天当他回家的时候，他发现他妈妈在看他的日记。这是一个感叹句结构，What （+a/an ）+ 形容词+名词（+主语+谓语+其他）+!How +形容词/副词（+主语+谓语+其他）+！故选A

—Will you go to the cinema with me this weekend?

—Sorry,I hiking with my cousin.

A. go B. went C. have gone D. will go

D 【解析】句意：——这周末你和我去看电影吗？——对不起，我要和我表弟去远足。根据 this weekend可知用将来时态；故选D

—Do you like seeing a movie on your mobile phone?

—No.I do that because it makes me uncomfortable.

A. often B. usually C. seldom D. sometimes

C 【解析】句意：——你喜欢在手机上看电影吗？——不，我很少那样做，因为它使我不舒服。A. often经常； B. usually 通常； C. seldom 很少； D. sometimes有时；根据No.和because it makes me uncomfortable.可知是很少；故选C