C．put away D．put together

答案　B

解析　后句句意为：她几乎能把老师说的每句话都记下来。put down写下，记下，符合语境。

6．The manager has not made up his mind yet________ who will be in charge of the project.

A．as to B．next to

C．owing to D．according to

答案　A

解析　句意为：经理就关于谁将负责这个项目一事还没有下定决心。as to关于，符合句意。next to紧挨着；owing to因为；according to根据。故选A。

7．Now scientists say that some dogs are badly­ behaved because they ________from their mothers too early，which can turn them into aggressive dogs.

A．took away

B．have taken away

C．were taken away

D．have been taken away

答案　C

解析　考查动词的时态和语态。首先，"狗是被带走的"，故用被动语态；其次，"狗被带走"发生在"狗变得有攻击性"之前，故用一般过去时。

8．In the great fire，he was lucky to escape________.

A．to be killing B．killing

C．killed D．being killed

答案　D

解析　句意为：在这次大火中，他幸运地逃过了一劫。escape作"逃脱"讲时，后跟doing作宾语；又由于kill与主语he之间为动宾关系，故用kill的被动语态。

9．Beijing has set the city's population________ at 23 million by 2020 due to water scarcity and big city diseases such as traffic jam.

A．budget B．ceiling

C．explosion D．standard

答案　B

解析　set the ceiling at为固定短语，意为"设置上限(为)"。ceiling上限，天花板。

10．The teacher wants the children to feel________ about asking questions when they don't understand.

A．certain B．concerned

C．sure D．confident