1 . 根据下列单词的重读音节，选出与其他三个发音不同的一个。

A．concentrate

B．concern

C．confirm

D．communicate

5 . 根据句意内容，从方框中选出正确的选项，完成下列句子。答案的标号写在答题卡上。

A. concentrated     B. shallow     C. authority     D. energy     E. designed

1. The stream was quite ______ so we were able to walk across it.
2. Mexicans may use silence when instructions are given by a person in ______ instead of arguing with him or her.
3. We’ll use up all the coal underground. We have to develop new kinds of ______.
4. The course is specially ______ for beginners like you, focusing on listening and speaking.
5. Previous generations ______ on getting children to school on time, fed, dressed and ready to learn.

6 . 词义匹配

A. worried about sth. B. to try or test new ideas, methods, etc. to find out the effect C. detailed and exact D. a scientific test that is done in order to gain new knowledge E. to give all the attention F. to order sth. regularly G. interested, taking part

1. He gave us very specific instructions so that we wouldn’t make any mistakes.
2. She was concerned that she might get lost in a new city.
3. What magazines does our library subscribe to each month?
4. I can’t concentrate with all that noise going on.
5. Many people do not like the idea of experiments on animals.

9 . She was the only one to________ the crash.

A．concentrate

B．survive

C．manage

D．bite