[单选题]Mrs. White is different from her friends who were ______.

正确答案 ：B

not always hopeful

解析：解析：本题题干上的信号词为different和friends，依据句为“Unlike her friends， however，she never lost heart.”其中lose heart =lose hope。此句意为“她从来都是满怀希望，而她的朋友与她不同，并不是经常满怀希望”。

[单选题]Science is still ______ of the causes of many kinds of cancer.

正确答案 ：A

ignorant

解析：解析：ignorant可以指“无学识的，愚昧的”，还指“不知道的”；unconscious意为“失去知觉的，不省人事的；无意识的”；conscious意为“有知觉的，意识到的”；informed意为“获悉，告知”。

[单选题]Guest: Oh, I hadn't realized how late it was. I'm afraid I'll have to be going. Host: Oh, not yet. I'm just going to make some coffee. Guest: ______ , though I'd really love to stay. I've got to be up by six tomorrow morning, unfortunately. Thank you for a wonderful party.

正确答案 ：A

I'm sorry, but I must

解析：解析：主人诚心挽留，客人坚持要走。由于不能接受主人的好意，客人应表示歉意，故而选择A．I'm sorry，but I must比较合理。其他选项使用场合不当。

[单选题]Jim: I have a pair of tickets for an opera Saturday night. Would you like to go? Cindy: I don't think so. ______.

正确答案 ：A

I'm not too wild about opera

解析：解析：be wild about something表示“对……极为热衷”，符合题意；B．I'm not too interested about opera．介词搭配不对；C．I'm not very excited about opera．和D．I'm not very anxious about opera．语义不符。

[单选题]Even if it ______ this afternoon, I will go there.

正确答案 ：C

rains

解析：解析：主句如果是一般将来时，状语从句一般用一般现在时。

[单选题]The passage suggests that the early shops for making tools were ______.

正确答案 ：A

not very sophisticated

解析：解析：本题的依据句是“At first，these articles were whittled with a knife，but when pioneer craftsmen set up their primitive shops most of them were fashioned on a lathe--a machine which holds an object and rotates it while it is being shaped by a tool.”在这里，A选项的not very sophisticated 意思为“并不复杂，是简单的”，对应原文中的primitive(原始的，简单的)。其他选项的内容属于无关信息。

[单选题]In Beijing there are ______ hotels with stars at present.

正确答案 ：C

about 400

解析：解析：本题的关键是找到这些选项中的数字在文中出现的地方，然后逐一对照确认即可。其依据句为“Beijing will have more than 800 hotels with star ratings before the Olympic Games in 2008. The city currently has 20 five-star hotels，34 four-star hotels and 338 other hotels with lower ratings.”可以看出，D选项内容是2008年的数字，A和B选项是五星和四星级宾馆的数字，而此题要求所有星级的宾馆总数。所以，答案是将不同星级宾馆数字相加，总数大约400(20+30+338)。

[单选题]At the foot of the mountain ______.

正确答案 ：A

stood a village

解析：解析：当句首状语是表示地点、处所的介词短语时，要引起全部倒装。D选项的错误在于其单词后没有加s。

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