29.The professor spoke slowly　 enough to　 make his speech easy ___.

　 A. follow　　　　 B. to follow　　　　　 C. followed　　　　　　 D. following

28.---Did you enjoy your visit there?---Yes but I’m very sorry _____so soon.　

A. for leaving　 B. of leaving　　　　　 C. to leave　　　　　　 D. to have left　

27.　 Her words _______ our understanding of the importance of estuaries.

A. have devoted to　 B. has led to　　　　　 C. have been affected　　 D. have contributed to

26.　 With more forests being destroyed, large quantities of rich soil _______ away each year.

A. is washing　　　　　 B. are being washed　　　 C. is being washed　　　　 D. are washing

25.　 One of the traders,_______ a great effect _______ us, _______ on German soil next year.

A. has; to will set his feet on　　　　　　　　　　　 B. that have; on; will set feet

C. who has; on; will set foot　　　　　　　　　　　　 D. who have; on; is to set foot

24.　 Heat capacity is _______ amount of energy _______ takes to _______ the temperature of a substance by one degree centigrade.

A. the; it; raise　　　　 　 B. an; that; rise　　　 C. the; it; rise　　　　　 D. an; it; raise

23.　 It is I not my brother who _______ to have two days’ leave.

A. is getting on itch　　　　 B. am getting the itch　 C. are having the itch　　 D. get the itch

22.　 In 1850 a law was made ________ runaway slaves.

A. forbid people to help　　　　　　　　　　　　　　　 B. forbidden people helping

C. to forbid people helping　　　　　　　　　　　　　 D. to forbid people to help

第一节：单项填空 (共25小题：每小题1分，满分25分)

21. His uncle doesn’t know the temperature today _______ from _______ to 2℃.

A. ranges; minus two degrees centigrade　　　　　　　 B. ranks; under 0℃

C. ranges; under two degrees centigrade 　D. drops; two degrees centigrade below freezing