倍数增减的表示法

1) Force N1 _______________(比力N2的2.5倍)

2) This substance _______________(反应速度是另外那种物质的三倍).

3) The earth _______________(是月球大小的49倍).

4) The landlord _______________(想将租金提高三分之一).

5) They _______________(计划将投资增加一倍).

时态

1) Be quick, _______________(否则等我们到达教堂时婚礼就已经结束了).

2) When she got home, _______________(孩子们已经睡着了).

3) When I prepare for the college entrance examination, _______________(我姐姐将在海边度假).

4) I_______________(一上午都在修改我的简历).

5) Do you often go on holiday? _______________(不,我已经有五年没有度假了).

6) He joined the army in October, 2001. _______________(他参军已五年了).

倍数增减的表示法

1) is 2.5 times greater than Force N2   (考点:倍数 + 形容词/副词比较级 + than)

2) reacts three times as fast as the other one   (考点:倍数 + as + 形容词/副词 + as)

3) is 49 times the size of the moon   (考点:倍数 + 名词)

4) wants to raise the rent by a third   (考点:动词 + by + 数词/百分比/倍数)

5) plan to double their investment   (考点:double + 名词)

时态  

1) or the wedding will have finished by the time we get to the church   (考点:将来完成时)

2) the children had fallen asleep   (考点:过去完成时)

3) my sister will be taking her vacation at the seaside   (考点:将来进行时)

4) have been revising my resume all the morning   (考点:现在完成进行时)

5) No. It has been five years since I went on holiday   (考点:It has been … since sb. did sth. 表示某人有多长时间没有做某事了)

6) He has been in the army for 5 years   (考点:1. 现在完成时;2.要用持续性动词才能接一段时间)