1.—Can you come to a party on Saturday, Peter? —Oh,________ I'm already going out, I'm afraid.

A what a pity!

B don't ask!

C how come?

D so what?

解析：选A。A　考查情景交际。 A真遗憾！；B别问了！；C怎么会？；D那又怎样？根据句意可知，这里指可能参加不了聚会，因此此处表示“遗憾”。本题主要看答语的后半部分。故选A。

2.If you come to visit China, you will _______ a culture of amazing depth and variety.

A develop

B create

C substitute

D experience

解析：选D。D考查动词辨析；A、开发；B、创造；C、替代；D、经历。句意：如果你来访问中国，你将体验到具有惊人的深度和多样性的文化。

3.______ scientists have learned a lot about the universe, there is much we still don't know.

A Once

B Since

C Though

D Unless

解析：选C。C 考查状语从句。A、一旦；B、自从……以来；C、尽管；D、除非。句意：尽管科学家们对宇宙已经了解甚多，但我们还有许多我们不知道的。根据句意，故选C。

4.Just as I got to the school gate, I realised I ______ my book in the cafe.

A have left

B had left

C would leave

D was leaving

解析：选B。B 考查动词的时态。 A为现在完成时态；B为过去完成时态，表示“过去的过去”。C为过去将来时态；D项为过去进行时。realized后省略了that，这里是一个宾语从句，从句时态与主句保持一致，“落下”的动作发生在“意识到”之前，应该用过去完成时，故选B。

5.A ship in harbor is safe, but that's not ______ ships are built for.

A what

B whom

C why

D when

解析：选A。A 本题考查名词性从句的连接词。句意：船停放在海港里是很安全的，但这并非建造船的目的。isn't后跟从句作表语，表语从句中的for后缺少宾语，用what引导，what与for连用，表示目的。What在句中既作连接词又作从句中for的宾语。故选A。

6.I'm so ______ to all those volunteers because they helped my terrible day end happily.

A special

B superior

C grateful

D attractive

解析：选C。C 本题考查形容词辨析。句意：我非常感激所有的志愿者，因为他们帮我把糟糕的一天变成了愉快的一天。 A、特殊的；B、优越的；超过；C、感激的D、有吸引力的。根据句意可知，这里是在向志愿者表达感激之情，故选C。

7.______ the difference between the two research findings will be one of the worst mistakes you make.

A Ignore

B Ignoring

C Ignored

D Having ignored

解析：选B。B 本题考查非谓语动词的句法功能即动名词作主语。句意：忽视两者研究成果的区别将会是你犯的最糟糕的错误之一。ignore的逻辑主语是you，两者是主谓关系，因此动名词做主语，A和D项不能直接做主语，故选B。

8.Some experts think reading is the fundamental skill upon _______ school education depends.

A it

B that

C whose

D which

解析：选D。D 考查定语从句。句意：一些专家认为阅读是学校教育所依赖的基本技能。it不能引导定语从句；that不用于介词之后；whose作定语，其后需有名词；depend on/upon依靠，依赖，介词后只能用which或whom来构成定语从句的引导词，而A、B、C三项均不符合句意， 故选D。

9.It is reported that a space station ______ on the moon in years to come.

A will be building

B will be built

C has been building

D has been built

解析：选B。B 本题考查动词的时态和语态。句意：据报道， 未来几年人们将在月球上建造空间站。根据in years to come可知该题应为将来时态，再者station和build之间构成被动关系，故选B。做时态类的题目，需要从句中找出时间状语，没有时间状语时，需要结合句意来判断。根据“in years to come”可知是将来的事情，且空间站是被建造的。

10.There is no need to tell me your answer now. Give it some _______ and then let me know.

A thought

B support

C protection

D authority

解析：选A。A 本题考查名词辨析。句意：现在没有必要告诉我你的答案。思考一下，之后告诉我。A、思想；思考；B、支持，维持；支援，供养；C、保护；防卫；护照；D、权威；权力；当局。

11.They gave money to the old people's home either _______ or through their companies.

A legally

B sincerely

C personally

D deliberately

解析：选C。C 本题考查副词辨析。句意：他们给那位老人的家里送钱，有的是以个人的名义，有的则是通过他们的公司。A、合法地；法律上；B、真诚地；由衷地，诚恳地；C、亲自；当面；个别地；就自己而言；D、故意地；谨慎地；慎重地。根据through their companies可知C项为正确选项。

12.It is lucky we booked a room, or we ______ nowhere to stay now.

A had

B had had

C would have

D would have had

解析：选C。C 本题考查虚拟语气。句意：很幸运我们订了一个房间，否则我们现在将无处可住。or引导含蓄虚拟条件句，or后面是主句，相当于if we hadn't booked a room, we would have nowhere to stay now，根据“now”可知，是对现在进行虚拟，因此主句用would＋动词原形，故选C。

13.They believe that there are transport developments ______ that will bring a lot of changes for the better.

A out of date

B out of order

C around the clock

D around the corner

解析：选D。D 考查介词短语辨析。句意：他们认为即将到来的交通发展将会带来很多好的方面的变化。A、过时的；过期的；废弃的；B、发生故障；次序颠倒； C、日以继夜地，连续一整天；D、在拐角处；即将来临。根据“will”可知是将要发生的事情，故选D。

14.______ he once felt like giving up, he now has the determination to push further and keep on going.

A Where

B As

C In case

D Now that

解析：选A。A 本题考查状语从句的连接词。句意：在他曾经想放弃的地方，现在他有推动进一步的决心并且继续前进。A、用来引导地点状语从句，既可以表示具体的地点又可以表达抽象的地点；B、表示原因或伴随；C、表示条件：D、表示“既然；由于”， 可以引导条件或原因状语从句。根据前后分句的逻辑关系，应选择引导状语的连接词，故选A。

15.—How is your table tennis these days? Still playing? — ______．I just don't seem to find the time these days.

A That's right

B No, not much

C That's great

D Don't worry

解析：选B。B 本题考查情景交际。句意：——你的乒乓球练得怎样了？还在练习吗？——没怎么练。我现在似乎没有时间练习。A、“没错，就是这样”，用来表示同意。B、不多；不怎么样；C、那太好了；D、“别担心”，表示安慰。根据答语的后半部分，故选B。