2．　 The students of Grade Three got together for an English evening.

　　　 三年级的学生们聚集在一起开了个英语晚会。

1．　 Let's get together one evening and talk about old times.

　 让我们找个晚上聚一聚．谈谈往事．

9．The children don't have to go to school on Saturday. 孩子们周六不必上学．

　 m. get together为动词短语，常用来指为讨论或社交活动而进行的某种“聚会”

如：

8．Do you often have to go to the dentist's? 你必须常常去看牙吗?

7． Students ought to attend class on time. 学生应该准时去上课．

▲ have to 强调客观上的“必须”。

6. Elder brothers should take care Of their younger brothers and sisters.

　　　　 兄长应该照顾弟妹．

5．You shouldn't．move if you are badly hurt．如果你受了重伤．就不应该移动．

　　 ▲ “ought to”意为“应该”，更强调责任、义务．如：

4. Everyone should know some first aid．　 每个人都应当懂得急救知识．

3．She must be injured．她肯定受伤了．

▲　　 should意为·应该”,‘应当”，语气比must稍弱．如:

2． We must get help．　 我们必须取得帮助．