②You will have to make up for all the things you have missed.

　　你必须补上所有你错过的东西。

　　[名师点津]　be made up of表示简单的组合；be made of表示"(成品)由......(原料)制成"，一般侧重能看出原材料的物理变化；be made from表示"(成品)由......(原料)制成"，一般侧重看不出原材料的化学变化；be made into表示"(原材料)被制成......"。

　　③As we all know, paper is made from wood.

　　众所周知，纸是由木材制造的。

　　[语境串记]　Our class is made up of forty students.Some girls in our class like making up so much that they are often late for classes.When our teachers ask, they usually make up excuses for it.

　　我们班由40名学生组成。班里一些女生很喜欢化妆以至于经常迟到。当老师们问时，她们常编造借口应对。

　　2．(教材P22)Then two Germanic groups from the European mainland - the Angles and the Saxons - occupied Britain.

　　然后，来自欧洲大陆的两个日耳曼部族--盎格鲁人和撒克逊人--占领了不列颠。

　　occupy vt.占领；占用(时间、空间等)；居住；使忙碌

　　(1) 使某人或自己忙于(做)某事

　　 忙于(做)某事

　　(2)occupation n．　　　　　　 工作，职业；占领，占用

　　①Her speech occupied three hours.

　　她的演说占用了3个小时。

　　②Mrs Green occupies herself in looking after her three children.

　　＝Mrs Green is_occupied_in_looking after her three children.

　　格林夫人忙于照料她的三个孩子。

　　③It is good manners not to disturb others when they are occupied with their work.

　　别人忙于工作时，不要去打扰他们，这是一种礼貌。

　　④Occupied (occupy) in a very important experiment he would not attend the party.

　　由于忙于一个非常重要的实验，他不能参加这次聚会。

　　[名师点津]　occupy意为"占据"时指不管某物在不在那儿，都可以说那个地方被"occupied"了。而take up则指某物必须在那儿才可以说那个地方被"taken up"了。

3．(教材P22)Old English consisted of a mixture of their languages.