When you visit a museum, you should ______ the instructions and don't be against them.

A. compare with B. look forward to

C. pay attention to D. try out

C 【解析】试题分析：考查短语辨析。compare with与……相比; look forward to期望; pay attention to关注, 注意; try out尝试, 试验。句意: 当你去参观博物馆的时候, 你应该关注注意事项并且不要违反它们。

The scientists have already the secret of the universe.

A. found B. looked for C. discovered D. seen

C 【解析】句意：科学家们已经发现了宇宙的奥秘。考查动词辨析题。A. found寻找；B. looked for查找，强调过程；C. discovered发现（本已存在的）；D. seen看见。根据句意和语境，可知ABD三个选项意思都与句意不符，故选C。

I got Ann's new address ______ asking her aunt，so I could visit her last weekend.

A. with B. by C. from

B 【解析】句意：我通过询问安的姑姑得到了她的新地址，因此上周末我能去看她。A. with用；随着；支持；和…在一起；B. by通过；被；依据；乘；在附近；在……之前； C. from来自，从。表示“通过某种方式”用by，后接动名词。结合句意可知选B。

—Susan，what's your ______ of keeping active in class?

—Going to bed early and getting up early.

A. habit B. rule C. secret

C 【解析】句意：----苏珊，课堂上你保持活跃的“秘密”是什么？---早睡早起。A. habit习惯； B. rule规则，制度；C. secret。根据答语“早睡早起”可知问句是“苏珊，课堂上你保持活跃的“秘密”是什么？故选C.

If we have a lot of ______，we will know more about our world.

A. knowledge B. brain C. ideas

A 【解析】句意：如果我们有很多知识，关于我们的世界我们将知道的更多。A. knowledge知识；B. brain头脑，智力；脑袋；C. ideas想法,主意,想法。根据后句“we will know more about our world”（ 关于我们的世界我们将知道的更多）可知我们要有“知识”。结合句意和选项可知选A。

—Why were the workers so happy?

—Because they ______ a new oilfield(油田) in the area last week.

A. invented B. helped C. discovered

C 【解析】句意：---工人们为什么这么高兴？---因为他们上周在这个地区发现了一个新油田。A. invented发明，创新；B. helped帮助； C. discovered发现。结合句意和选项可知选C。

—Dad，I can't send my e?mail.Why?

—Let me see.Oh，your computer isn't ______ with the Internet.

A. refused B. connected C. finished

B 【解析】句意：---爸爸，我不能发送我的电子啦。为什么？-----让我看看。噢，你的电脑没有连上互联网。A. refused拒绝；B. connected连接；联合；关连；C. finished 完成。connect…with…把……与……连接。本题中使用了被动语态，be connected with。结合句意和选项可知选B。

—What do you think of Jim?

—He hardly speaks.It's difficult ______ what he's thinking.

A. know B. stop C. to know

C 【解析】句意：----你认为吉姆怎么样？-----他很少说话。很难知道他在想什么？A. know知道，认识； B. stop停止。 句型It's＋adj. （+sb.）＋to do sth. ：（对于某人来说）做某事是什么样子的；it是形式主语，真正主语是后面的动词不定式。结合句意和选项可知选C。

The movie Big Hero is ______ interesting ______ I have watched it three times.

A. enough；to B. so；that C. too；to

B 【解析】句意：电影《大英雄》是这么有趣以至于我看了它三次。A. 形容词/副词+enough to do sth.：足够..以至于…；例如，He is old enough to take care of himself. (他足够大了，能够照顾自己了。) B. so+形容词/;副词+that +句子：如此…以至于…；例如，He is so old that he can take car...

Our teacher says that ______ we practice，______ our spoken English will be.

A. more；better B. the more；the better C. more；the better

B 【解析】句意：我们的老师说我们练得越多，我们的英语口语会越好。句型“the＋形容词比较级， the＋形容词比较级”意为“越……，越……”。结合句意和选项可知选B。