— Nowadays China has about 25,000 kilometers of high-speed railways.

— That's of the world's total.

A. two third B. two-third C. two thirds D. two three

C 【解析】 句意：——现在中国有大约25000公里的高速铁路。——这是世界总量的三分之二。一般情况下，表示分数时，分子要用基数词，分母要用序数词，如果分子大于1，表示分母的序数词要用复数形式，如：two thirds 三分之二。故答案为C。

— Could you give me a few on how to spend the coming summer holiday?

— OK, let me see.

A. hobbies B. suggestions C. knowledge D. information

B 【解析】 句意：——你能给我一些关于如何度过即将到来的暑假的建议吗？——好的，让我想想。A. hobbies爱好；B. suggestions建议；C. knowledge知识；D. information信息。a few修饰可数名词，knowledge，information为不可数名词，因此要排除C,D答案；结合句意可知，请求对方给出一些度假的建议，故答案为B。

— Mom, I play computer games this evening?

— Sure, but you finish your homework first.

A. can; must B. can; mustn’t C. may; could D. may; can’t

A 【解析】 句意：——妈妈，今晚我能玩电脑游戏吗？——当然可以，但是你必须先完成家庭作业。Can/May I…？我可以做……吗？表示一种请求。must必须；mustn’t禁止，千万别；could可以；can’t不能。根据Sure判断，妈妈答应了请求，但是提出一个条件，必须首先完成家庭作业，故答案为A。

— Mary, how can I get to Xianning from Wuhan next week?

— You’d better take a train. the suitable trains in the timetable.

A. Set up B. Look up C. Take up D. Put up

B 【解析】 句意：——玛丽，下个星期我怎样才能从武汉到达咸宁？——你最好坐火车去。在时间表中查找合适的列车。A. Set up建立；B. Look up查找；C. Take up从事；D. Put up张贴，举起。根据选项，结合句意可知，答案为B。

— The 19th National Congress of the CPC(中共十九大) in Beijing last year.

— Our country has been into a new era(时代) since then.

A. held B. was held C. has held D. had held

B 【解析】 句意：——去年，中共第十九次全国代表大会在北京举行。——从那时起，我国进入了一个新的时代。A. held一般过去时；B. was held一般过去时的被动语态；C. has held 现在完成时态；D. had held过去完成时态。根据时间状语last year判断，句子的时态为一般过去时，主语The 19th National Congress of the CPC与...

— High-speed trains, Mobile payment, Sharing bikes and Online shopping are called "four new great inventions" of modern China.

— They our daily lives more convenient.

A. have made B. had made C. have been made D. made

A 【解析】 句意：——高铁、扫码支付、共享单车和网购被称为“中国四大新发明”。——它们使我们的日常生活更加便利。A. have made现在完成时； B. had made过去完成时；C. have been made现在完成时态的被动语态；D. made一般过去时态。中国新的四大发明已经给我们的生活带来了极大的便利，需要用现在完成时态来表达，故答案为A。

— Would you like to go swimming with me, Tom?

— Sorry, but our teachers always tell us in the river.

A. don’t swim B. not swimming C. not to swim D. to not swim

C 【解析】 句意：——你愿意和我一起去游泳吗，汤姆？——对不起，但是我们的老师总是告诉我们不要在河里游泳。tell sb. not to do sth.告诉某人不要做某事，结合句意可知，答案为C。

— Harry Potter is an interesting novel I want to read it again.

— I agree with you.

A. so; that B. too; to C. such; that D. as; as

C 【解析】 句意：——哈利·波特是如此有趣的一部小说，我想再读一遍。——我同意你的看法。too＋形容词或副词＋to＋动词原形，意思是“太……而不能”；such...that...和so...that...意思都是“如此……以至于……”，such后接名词，so后接形容词或副词，that后接从句。as+形容词或副词原级+ as意思是“与……一样”，用于原级比较。第二个空格后为从句，排除故...

— What do you think of the show Readers on CCTV?

— It’s a great TV show expresses our true feelings by reading aloud in public.

A. whom B. who C. whose D. that

D 【解析】 句意：——你对中央电视台的节目《朗读者》有什么看法？——这是一个很棒的电视节目，通过公开朗读来表达我们的真实感受。A. whom关系代词，可以引导定语从句，先行词是人，在从句中只能作宾语；B. who关系代词，引导定语从句，先行词是人，在从句中作主语；C. whose先行词是人或物，在定语从句中作定语；D. that先行词是人或物，在定语从句中作主语或宾语。此句的先行词为...

— What did the teacher say to you?

— He asked me .

A. why I am late for class B. if had I prepared my exams well

C. when did I do my homework D. how I could design my plan

D 【解析】 句意：——老师对你说了什么？——他问我如何设计我的计划。此句考查宾语从句的时态和语序，宾语从句要用陈述句的语序，首先可以排除B,C选项，因为它们都是一般疑问句的语序；当主句是一般过去时态时，宾语从句一般要用过去时态的某种形式（客观真理除外），此句的主句是一般过去时态，排除A选项，故答案为D。