6．-Excuse me，did you notice whether our head teacher had gone by?

-Not ________ I’ve been standing here.

A．while　 B．when　 C．since　 D．before

解析：while表示“在……期间”，谓语动词必须延续；when表示“当……时候”； since表示“自从……以来”，后面用过去时；before表示“在……之前”。根据句意A项最佳，表示“我站在这里这段时间”。

答案：A

5．-Have you ________ some new ideas?

-Yeah，I’ll tell you later.

A．come about　 B．come into　 C．come up with　 D．come out with

解析：本题考查come短语的辨析，come about发生，产生；come into进入；come out with与……出来，都不符合题意，只有come up with提出(想法、意见等)。

答案：C

4．Mr. Brown is a man of difficult ________.

A．touch　 B．access　 C．contact　 D．deal with

解析：句意：“布朗先生是一位难接近的人。”考查词义辨析：touch“接触，触摸”；access“接近”；contact“接触，联系，联络”，作名词应是be in contact with；deal with是动词词组“处理，应对”。

答案：B

3．There is too much noise outside；I can not ________ my attention on my book.

A．fill　 B．connect　 C．flat　 D．concentrate

解析：句意为：“外面噪音太大；我不能集中精力看书。”concentrate my attention on my book表示“把精力集中于书”；fill“注入”；connect“连接”；flat“平的”。

答案：D

2．The beauty of Venice ________ largely in the style of its ancient buildings.

A．is consisting　 B．consists　 C．is consisted　 D．is being consisted

解析：“Venice的美关键在于她古建筑的风格。”consist in在于(不用进行时和被动语态)。

答案：B

1．They went to the zoo on foot ________ by bus.

　 A．instead　 B．instead of　 C．without　 D．but

解析：句意“他们步行而不是坐车去了动物园”。instead of取代。

答案：B

8．average　9.hesitate　10.frequent

10．Sandstorms are ________(频繁的)in the spring of Beijing，which do great harm to the environment.

答案：tain　2.access　3.crashed　4.breakdown　5.source　6.accessible　7.percentage

9．Don’t ________(犹豫)to ask us for help.

8．The ________(平均)time the teachers in countryside middle school spend in teaching is more than 11 hours a day.