1 . From the late 13th until 19th century, with the highest section built and the overall length ________ (shorten), the Canal was turned into a main passage between northern and southern China as well as the economic lifeline of the country. （所给词的适当形式填空）

2 . Information services like cloud computing are updated, helping these businesses transform their economic development and         their competitive edge in the world.

A．shorten

B．sharpen

C．shave

D．shrink

3 . The Foreign Minister’s visit to the Middle East will help ______ the bilateral relationship between China and the Middle Eastern countries.

A．weaken

B．shorten

C．strengthen

D．hasten

4 . 根据提示给下面单词加上适当的词缀
1. inform→____________ n．信息
2. terrible→____________ adv.可怕地
3. possible→____________ adj.不可能的
4. likely→____________ adj.不可能的
5. important→____________ n．重要
6. tradition→____________ adj.传统的
7. attract→____________adj.吸引人的
8. short→____________vt.缩短
9. use→____________vt.再利用
10. honest→____________ adj.不诚实的

5 . 词性转换
1. 把……献给；专注于________ vt. ________n.
2. 贫困；贫穷________n. ________adj.
3. 含盐的；咸的________adj. ________n.
4. 假定；假设________vt. ________n.
5. 扩大；增加________vt. ________n.
6. 短缺；不足________vt. ________n.________ adj.
7. 现实；事实________n. ________adj.________ adv.
8. 使确信________vt. ________adj.(确信的)________adj.(令人信服的)
9. 营养________n. ________adj.(营养物的)________adj.(营养丰富的)
10. 消耗；消费________vt. ________n.________ n.(消费者)

6 . Authors use charts to ________ concepts because they are an effective way of revealing relationships and clarifying connections.

A．regenerate

B．illustrate

C．shorten

D．recognize

7 . 注意力持续时间变短以及加快的生活节奏或许有助于解释为什么观众倾向跳过片头曲。（explain）(汉译英)

10 . When the market for nutria collapsed in the late 1980s, the cat-sized animals multiplied like crazy.

A．shortened

B．rooted

C．multiplied

D．crashed