答案:C

13.As your instructor advised,you ought to spend your time on something 　　　 researching into.

A.precious B.worth

C.worthy D.valuable

解析:选项中只有worth后接动词-ing作宾语。precious"珍贵的,贵重的";worth"值得的";worthy"值得的";valuable"贵重的"。

答案:B

14.-What a pleasant weather!

-　　　?

A.Why not go out for a walk

B.Why not to go out for a walk

C.Why not going out for a walk

D.Why don't go out for a walk

解析:本题考查固定句型why not后加动词原形的用法,故答案为A项。

答案:A

15.　　　 squeezing your own orange,have you tried buying packs of orange juice?

A.Or rather B.More than

C.Rather than D.Would rather

解析:rather than "而不是"。句意:你是否试过买几盒橙汁,而不是自己挤?

答案:C

Ⅱ.完形填空

16.Leonardo da Vinci began painting the Mona Lisa in 1503.He was working 　16　 a special painting for a church at that time,　17　 the church painting was not 　18　 well.An Italian businessman asked da Vinci to paint a picture of his second 　19　.This is the woman who 　20　 be seen in the Mona Lisa.

　　All in all,the Mona Lisa is a very good example of da Vinci's 　21　 and it satisfied the husband.Da Vinci used 　22　 and light in a clever 　23　 in the painting.Da Vinci loved science and 　24　.Right away a person can see that there is a lot of geometry (几何形状) in the Mona Lisa.The face of the Mona Lisa is made of many circles and 　25　 shapes like 　26　.Even her 　27　 can be seen as a small part of a large circle.The woman in the 　28　 is sitting on a balcony,and 　29　 can be seen behind her.Da Vinci loved to study rocks,so these can be seen 　30　 in his other paintings.The woman is sitting with her knees 　31　 the side.Her head is turned to look out of the painting.Her hands are 　32　 together in front of her.This way of 　33　 is now used by many 　34　 when they are 　35　.The Mona Lisa is a remarkable master.

A.up B.in

C.on D.about

解析:work on指从事某一件事。in后面跟地点。

答案:C

17.A.but B.thus

C.however D.so