1 . 拓展单词
1. immediate adj.立即的；即刻的→ ________ adv.立即，即刻 conj.一……就……
2. occur v. 发生→ ________ n. 发生的事情，事件
3. announce v. 宣布，宣告→ ________ n. 通告，公告→ ________ n. 广播员，播音员
4. rely v. 依赖，依靠→ ________ adj.可信赖的，可靠的→ ________ adj.不能信赖的，不可靠的
5. except prep.除……之外 conj.除了，只是→ ________ n. 例外→ ________ adj.异常的，杰出的→ ________ adv.极其，非常
6. threat n. 威胁，形成威胁的人（或事物）→ ________ v. 威胁到，危及
7. precise adj.精确的；准确的→ ________ adv.精确地，准确地
8. sufficient adj.足够的，充足的→ ________ n. 足量，充足

7 . 阅读下面句子，根据句意，从方框中选择恰当的词或词组并用其正确形式填空。

Have an impact on                      reliable               submit                    reveal                 be responsible for Make up one’s mind                 barrier                 figure out            end up               competitive

1. You need a degree to be ________ in today’s job market.
2. We need more ________ information before we can take action.
3. The mountains acted as a natural ________ to the spread of the disease.
4. The movie we wanted to see was sold out so we ________ seeing a different one.
5. If you ________ something, it is your duty to deal with it and make decisions relating to it.
6. Those interested in the position should ________ their applications to the Student Union.
7. A survey of the British diet ________ that a growing number of people are overweight.
8. We had a very productive meeting because I felt we ________ a lot of problems.
9. Technological innovation ________ the country’s economy quite considerably.
10. Summer vacation is coming, but I can’t ________ where to take my vacation.