It must have taken a great prehistoric thinker to imagine two thin slices of log connected, at their centers by a string stick. This would roll along just as the logs did, yet be much lighter and easier to handle. Thus the wheel and axle came into being and with them the first carts.
第48题 The wheel is important because__________.
A.it was man's first real invention B.all transportation depends on it
C.every machine depends on it D.both B and C
答案：D
第49题 The wheel is called__________.
A.simple B.complicated C.strange D.unusual
答案：D
第50题 It was remarkable of man to invent the wheel because__________.
A.it led to .many other inventions B.man had no use for it then
C.there were no wheels in nature D.all of the above
答案：D
第51题 The wheel was probably invented by__________.
A.a group of early hunters B.the first men on earth
C.a great prehistoric thinker D.the man who made the first cart
答案：A
根据以下内容，回答下面试题。
Passage Five
Even plants can run a fever, especially when they're under attack by insects or disease. But unlike humans, plants can have their temperature taken from 3,000 feet away--straight up. A decade ago, adapting the infrared (红外线) scanning technology developed for military purposes and other satellites, physicist Stephen Paley came up with a quick way to take the temperature of crops to determine which ones are under stress. The goal was to let farmers precisely target pesticide (杀虫剂) spraying rather than rain poison on a whole field, which invariably includes plants that don't have pest (害虫) problems.
Even better, Paley's Remote Scanning Services Company could detect crop problems before they became visible to the eye. Mounted on a plane flown at 3,000 feet at night, an infrared scanner measured the heat emitted by crops. The data were transformed into a color-code map showing where plants were running" fevers". Farmers could then spot-spray, using 50 to70 percent less pesticide than they otherwise would.
The bad news is that Paley's company closed down in 1984, after only three years. Farmers resisted the new technology and long-term backers were hard to find. But with the renewed concern about pesticides on produce, and refinements in infrared scanning, Paley hopes to get back into operation. Agriculture experts have no doubt the technology works~ "This technique can be used on 75 percent of agricultural land in the United States", says George Oerther of Texas A&M. Ray Jackson, who recently retired from the Department of Agricultrue, thinks re- mote infrared crop scanning could be adopted by the end of the decade. But only if Paley finds the financial backing which he failed to obtain 10 years ago.
第52题 In order to apply pesticide spraying precisely, we can use infrared scanning to__________.
A.locate the problem areas B.drew a color-ceded map
C.measure the size of the affected area D.estimate the damage to the crops
答案：A
第53题 Farmers can save a considerable amount of pesticide by__________.
A.transforming poisoned rain B.consulting infrared scanning experts
C.resorting to spot-spraying D.detecting crop problems at an early date
答案：C
第54题 Plants will emit an increased amount of heat when they are__________.
A.sprayed with pesticides B.in pour physical condition
C.facing an infrared scanner D.exposed to excessive sun rays
答案：B
第55题 The application of infrared scanning technolgy to agriculture met with some difficulties due to__________.
A.the lack of official support B.its high cost
C.its failure to help increase production D.the lack of financial support
答案：D 五、补全对话
根据以下内容，回答下面试题。
A.We'll show you our photos when we are back.
B. We are going with our teachers.
C. We are going to Paris.
D. When are you leaving?
E. How long are you going to stay there?
F. Have you been there before?
G. I want to go to London.
H. See you later.
A: Hi, Xiao Wang. Where are you going on vacation?
B: 56 __________.
A: Paris? That sounds great! 57 __________.
B: We are leaving next Tuesday.
A: Who are you going with?
B: 58 __________.
A: 59 __________.
B: For about two weeks. 60__________.
A : Great ! Wish you a pleasant journey!
B: Thanks a lot.
第56题 请选择最佳答案填入( )
A.We'll show you our photos when we are back.
B. We are going with our teachers.
C. We are going to Paris.
D. When are you leaving?
E. How long are you going to stay there?
F. Have you been there before?
G. I want to go to London.
H. See you later.
答案：C
第57题 请选择最佳答案填入( )
A.We'll show you our photos when we are back.
B. We are going with our teachers.
C. We are going to Paris.
D. When are you leaving?
E. How long are you going to stay there?
F. Have you been there before?
G. I want to go to London.
H. See you later.
答案：D
第58题 请选择最佳答案填入( )
A.We'll show you our photos when we are back.
B. We are going with our teachers.
C. We are going to Paris.
D. When are you leaving?
E. How long are you going to stay there?
F. Have you been there before?
G. I want to go to London.
H. See you later.
答案：B
第59题 请选择最佳答案填入( )
A.We'll show you our photos when we are back.
B. We are going with our teachers.
C. We are going to Paris.
D. When are you leaving?
E. How long are you going to stay there?
F. Have you been there before?
G. I want to go to London.
H. See you later.
答案：E
第60题 请选择最佳答案填入( )
A.We'll show you our photos when we are back.
B. We are going with our teachers.
C. We are going to Paris. D. When are you leaving?
E. How long are you going to stay there?
F. Have you been there before?
G. I want to go to London.
H. See you later.
答案：A
六、书面表达(25 points)
第61题 The Internet
答案：The Internet
With the development of computers，the.Internet has become widely used.More and more information will be provided for people.We can get all kinds of useful information in any scientific research field whenever we need.It can help US to enrich our knowledge and help our country to keep up with the developed countries.
However，the Internet also brings US too much information.It always make US very difficult to find something available by browsing many necessary websites.
In a word，we need the Internet.but we should make good use of it.
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