1.Teachers often chaperon their classes on field trips.

1.野外郊游时老师常看护着班的学生。

2.There are ten English classes listed in the timetable.

2.课表列有10节英语课。

3.We may enrol another two classes of 20 students each.

3.我们可以再招收两个班, 班20个学生。

4.Many schools use small classes as their trump card in marketing campaigns.

4.很多学校传活动时都把小班授课当成他们的王牌。

5.In this book we have tried to typify the main classes of verbs.

5.本书中，我们力图以明显的方式把动词划几大类。

6.The new grouping of classes means larger numbers in each class.

6.这重新编班，意味着个班的人数增多了。

7.The lower classes are always with us.

7.我们总是和下层社会人民一起。

8.We have a dictation every English class.

8.英语课我们都进行听写测验。

9.New tasks now confronted the working class.

9.新任务摆工人阶级面前。

10.Officers are entitled to travel first class.

10.官员有权坐头等舱。

11.The teacher scowled at his noisy class.

11.老师对他那喧闹的课堂板着脸 。

12.The arrival of the teacher silenced the class.

12.教师的到来使全班安静下来。

13.The teacher set the class a comprehension test.

13.老师对全班同学进行了一理解力测验。

14.Please distribute the examination papers round the class.

14.请把考卷发给全班同学。

15.We use a globe in our geography class.

15.我们地理课使用地球仪。

16.She paces the whole class in English study.

16.她学习英语方面为全班树立榜样。

17.Marx inveighed against the evils of the property-owning classes.

17.马克思猛烈抨击了有产阶级的罪恶。

18.This preferential ticket entitles you to travel first class.

18."凭这张优惠票,你可以坐头等舱旅行。"

19.She paces the whole class in studying English industriously.

19.她刻苦学习英语给全班同学树立了榜样。

20.A recorder is often used in our English class.

20.英语课堂我们经常使用录音机。