measure 意为：有......的尺寸，by为prep. 意为:乘以。

Para.8

9.These pioneers of the 20th century were all dedicated to imprving the quality of human life on earth,but sometimes breakthrough discoveries that have affected.(C级)

译文:

[句子分析]

这是由but连接的两个分句。在第一个分句当中be dedicated to意思为"专注于，献身于"，to是 词。在第二个分句当中that have affected our lives today为

从句作breakthrough discoveries的 语。

Para.9

10.There is no doubt about it. (B级)

译文:

[句型联想]

There is no doubt that从句 ...是毫无疑问的

StepⅡ 当堂检测

(1).Choosing the best answers. (C级)

1.A mass of information ________ ( have ) been collected by them.

2.Masses of books ________ ( have ) been sent to the countryside.

A. have B.has C.had

3. The box ____ two metres by two metres and ____ a ton.

A.measures; is weighed B. is measured; is weighed

C. is measured; weighs D. measures; weighs

(2)．Useful expressions(B级)

1 base ...on/upon...________ 2 figure out...________

3 inspire sb to do sth. ________ 4 According to...________

5 turn to sb. ________ 6be about to .....when________

7wrestle with th. ________8.here is no doubt about it. ________

(3).Translation(C,D级)

1.我正要出去,这时电话铃响了。(be about to do....when....)

2.科学家的事迹激起了我们对学习的热爱。(inspire)

3.我们急切地等待着他们讨论的结果。(outcome)

4.似乎没有人懂这个，我不知道该向谁求教。(turn to)

5.他在经商上肯定会成功的。(there is no doubt about...)