8．be up ________ sb. 由某人负责

　　【答案】　1.to　2.to　3.into　4.up　5.out　6.at　7.to　8.to

　　根据提示补全下列教材原句

　　1．There are many situations in everyday life where informal English is allowed or even preferred, for example, while playing sports or meeting friends at a party.

　　在日常生活中有许多场合可以使用非正式英语，非正式英语甚至更受欢迎，比如，在进行体育运动或朋友聚会时。

　　2．Looking up every new word will certainly be a waste of time.

　　查找每一个新单词当然会浪费时间。

　　3．If I knew his language，I would get along with him better!

　　如果我会说他的语言，我会和他相处得更好！

　　 leave out遗漏，删去；不考虑，忽视；不包括，不提及

　　(教材P28)We cannot leave out the question words in noun clauses.

　　在名词性从句中，我们不能漏掉疑问词。

　　leave for... 动身去......

　　leave aside 不予考虑，搁置一边

　　leave ...behind 把......抛在后面，超过

　　leave off 停止(做某事)，中断

　　leave alone 不管；不理；不干涉

　　①The principal is busy at his desk.You'd better leave him alone.

　　校长正坐在桌旁忙于工作，你最好别打扰他。

②(牛津词典)Start reading from where you left off last time.