2) to state with great force so that there is no doubt about the meaning 声称， 断言，宣称 She declared that she knew nothing about it.

3) to make a full statement of 申报 Have you anything to declare?

13.Keep up: 保持,坚持,持续

1)to go on with ;continue steadily;never stop 保持

The manager asked the workers to keep up the work.

2)go on; not stop;continue 继续，持续

The rain kept up for two days and the roads were flooded.

练习：

Ⅰ.翻译

1.用......方法，依靠 2.大多数，很多

3.习惯于新的生活方式，工作等 4.把......于......混合

5.混淆，弄错 6.忽然想起......

7.与......合作 8.划出

9.吸引，收留，包括 10.许多

11.对......作出反应 12.在不同的时期

13.向某人宣战 14.从......获得独立

15.美籍俄裔人 16.多元文化的社会

17.来自世界各地的人们 18.20世纪初

Ⅱ.翻译下面句子

1.汤姆觉得把工作与乐趣相结合不容易。(mix......with)

2.当时他们通过用身体语言来交流。(by means of )

3.我忽然想起我忘了把钥匙交给李明。(It occurred to...... )

4.这对夫妇在战争期间收留了很多孤儿。(take in )

答案：

Ⅰ.1.by means of 2. a/the majority of 3. make a life 4. mix ...with

5.mix up 6.It occurs to sb to do sth ... 7.team up with

8. mark out 9. take in 10. a great/great many 11.react to

12.at various times 13.declare war on sb 14. gain independence from sb

15.Russian-Americans 16.a multicultural society

17. people from different parts of the world

18. at the beginning of the 20th century

Ⅱ.1.Tom felt it hard to mix work with pleasure.

2.Then they communicated by means of body language.

3.It occurred to me that I had forgotten to leave the key to LiMing.

4.The couple took in many orphans during the war.