Cloning humans has been in the science world for many years and it is likely that it will co——青夏教育精英家教网—

25. Cloning humans has been _____ in the science world for many years and it is likely that it

will continue to be.

A. ridiculous　　　　B. contemporary　　　　C. controversial　　　　D. conventional

24._______ of time and energy has been spent in making the earthquake-stricken areas a permanent museum to remind people how disastrous a natural disaster can be.

　 A. A great number　　　　B. A great deal　　　 C.　 A great many　　　 D. A plenty

23. They’ll start their project, _____at helping the poor children to be educated in the west of China.

A．aims　　　　　　　　　B．aiming　　　　　 C．being aimed　　　　　D．to aim

22. Many people agree that ____ knowledge of English is ___ must in international travel today.　　　

　A. the, \　　　　　　 B. a , the　　　　　　C. a, a　　　　　　 D. the, a　

第一节：单项填空(共20小题；每小题0.5分，满分10分)

21．-----Would she mind if she played against her former teammates?

-----　_______. 　She is willing to play against any tough players.　

　A．I think so.　　　 B．I’m not surprised.　　　C．Of course.　　　 D．Not likely !

26．小明将一张矩形纸片沿对角线剪开，得到两张全等直角三角形纸片(如图2)，量得他们的斜边长为10cm，较小锐角为30°，再将这两张三角纸片摆成如图3的形状，使点B、F、D在同一条直线上，F为公共直角顶点。然后小明又将图(3)中的△ABF沿直线AF翻折到图(4)的位置，点B落在FD边上的B₁点，AB₁交DE于点H。

请你说明：(1)AH=DH.；(2)点H在∠AFD的角平分线上。