19.Stick to your 　 and tell him you won’t do it. 

　　A.methods B.principles

　　C.means D.beliefs

　　答案:B

　　解析:考查名词用法。句意:要恪守自己的原则,告诉他你绝不会干的。method“方法”;means“方式”;beliefs“信仰”。

　　20.—It’s a long time 　I saw you last. 

　　—Yes,and what a pity.It will be a long time 　we see each other again. 

　　A.before;before B.since;since

　　C.before;since D.since;before

　　答案:D

　　解析:考查两个句式。“It is/has been+一段时间+since从句”表示某一动作或状态从过去某段时间起到现在为止;“It was/will be+一段时间+before从句”表示“过一段后才……”。

　　Ⅱ.阅读理解

　　It’s been a hard time for rhinos(犀牛) lately.Last week,the International Union for Conservation announced the western black rhinos had died out in the wild.It was last seen in western Africa in 2006.Now,those who work to protect the animals are trying to make sure that won’t happen to other rhinos.

　　Earlier this month,19 south-central black rhinos in South Africa were driven to an area nearly 1,000 miles away,which is said to be the gentlest and quickest way to transport the animals.They were taken to a new home that will keep them safe from hunters.

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