643] -----Do you usually take a vacation? -----Yes, I like to go away______.

[譯文] --你喜歡度假嗎？　　--是的，我喜歡遠(yuǎn)出一年一次。

　 A. one time this year 　 B. once a year

　 C. one time a year 　 D. one time in a year

[答案及簡(jiǎn)析] B。 次數(shù) + a year/ month/ week 是常用固定搭配，表示一年／月／周一次。

642] Her boy friend is a tall young man _____ glasses. He likes to ______ a face.

[譯文] 她的男朋友是一個(gè)帶著眼鏡的高個(gè)子年輕人。他喜歡裝怪像。

　 A. wear; make 　 B. wears; makes

　 C. with; make 　 D. wearing; making

[答案及簡(jiǎn)析] C。 第一個(gè)空用介詞短語(yǔ)，表示伴隨；第二個(gè)空缺一個(gè)動(dòng)詞原型。

641] Please ______ that you have closed all the windows and turned off the lights before you leave the room.

[譯文] 在你離開房間之前請(qǐng)查一下你是否把所有的窗子和燈都關(guān)上了。

　 A. make sure 　 B. be sure

　 C. bring out 　 D. hold up

[答案及簡(jiǎn)析] A。 be sure 有把握，確信；make sure 務(wù)必，一定，千萬(wàn)。

640] When he was sixty years old, he _____ his hometown.

[譯文] 當(dāng)他60歲的時(shí)候，他就回到了他的故鄉(xiāng)。

　 A. returned 　 B. returned back

　 C. returned to 　 D. went back

[答案及簡(jiǎn)析] C。 return 歸來(lái)，回來(lái)，不再和副詞back連用。

639] ______ you understand the rule, you can do it well.

[譯文] 你一旦理解了規(guī)則，你就會(huì)把它做好。

　 A. For 　 B. As

　 C. Once 　 D. While

[答案及簡(jiǎn)析] C。 once連詞，引導(dǎo)狀語(yǔ)從句，"一旦"。

638] The room ____ voices of the children.

[譯文] 房間里充滿了孩子們的聲音。

　 A. filled with 　 B. was filled with

　 C. full of 　 D. was full with

[答案及簡(jiǎn)析] B。 be filled with "充滿"。

637] I can hardly heat the radio. Would you please ______?

[譯文] 我?guī)缀趼牪坏绞找魴C(jī)了。請(qǐng)把他開大一點(diǎn)好嗎？

　 A. turn it on 　 B. turn it down

　 C. turn it up 　 D. turn it off

[答案及簡(jiǎn)析] C。 turn up 開大一些；turn off關(guān)掉； turn on 打開；turn down關(guān)小一些。

636] They made an important decision ______ the end of the meeting.

[譯文] 在會(huì)議結(jié)尾時(shí)他們做了一個(gè)重要的決定。

　 A. in 　 B. by

　 C. on 　 D. at

[答案及簡(jiǎn)析] D。 at the end of 固定搭配"在…結(jié)尾"，"在…底／末"。

635] The boy was not allowed ______ his brother’s bike.

[譯文] 不容許這個(gè)小孩用他哥哥的自行車。

　 A. to use 　 B. using

　 C. use 　 D. used

[答案及簡(jiǎn)析] A。 考查動(dòng)詞的用法be allowed to do sth.被容許做什么。

634] He _____ tasted the mixture and give a smile.

[譯文] 他很高興地嘗了嘗混合物然后笑了笑。

　 A. glad 　 B. gladly

　 C. was glad 　 D. was glad to be

[答案及簡(jiǎn)析] B。 副詞才能修飾動(dòng)詞。