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根据下列材料回答下列各题。
Passage Two

Although no one is certain why migration occurs，there are several theories．One theory isbased upon the premise that prehistoric birds of the northen Hemisphere were forced southDur-ing the Ice Age，when glaciers covered large parts of Europe，Asia，and Nor
Another theory proposes that the ancestral home of all modem birds was the tropics．Whenthe region became overpopulated，many species were crowded north．During the summer，therewas plenty of food，but During the winter，scarcity forced them to retum to the
A more recent theory，known as photoperiodism，suggests a relationship between increasingday light and the stimulation of certain glands in the birds’bodies that may prepare them for mi—gration．One scientist has been able to cause midwinter migrations
According to one theory，when the glaciers Disappeared，birds_________．
A.stopped migrating
B.continued migrating
C.began migrating again
D.migrated south and stay there

试题出自试卷《2013年成人高考专升本《英语》考前预测试卷五》

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外语系打算举行一次茶话会(tea party)，庆祝程教授从事英语教学30周年(anni．versary)．茶话会定于下周五即6月20日7时举行。请你写信邀请Brown教授参加，并以愉快的心情盼望他的光临。
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_______
A．Was it serious?
B．Did you see theDoctor?
C．Are you feeling better now?
D．How are you?
E．Take more exercise and keep heMthy．
F．What was the matter?
G．I miss you so much．
H．You are so strong．
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_______
A．Was it serious?
B．Did you see theDoctor?
C．Are you feeling better now?
D．How are you?
E．Take more exercise and keep heMthy．
F．What was the matter?
G．I miss you so much．
H．You are so strong．
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_______
A．Was it serious?
B．Did you see theDoctor?
C．Are you feeling better now?
D．How are you?
E．Take more exercise and keep heMthy．
F．What was the matter?
G．I miss you so much．
H．You are so strong．
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_______
A．Was it serious?
B．Did you see theDoctor?
C．Are you feeling better now?
D．How are you?
E．Take more exercise and keep heMthy．
F．What was the matter?
G．I miss you so much．
H．You are so strong．
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It is implied in the passage that_________．
- A.governments and companies hadDifferent opinions about the safety of products
- B.governments paid little attention to the safety of products
- C.government officials oftenDid not listen to scientists
- D.in the past no safety laws were introduced by governments
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A：Hi，Fang Fang．You were not at school yesterday．____56___
B：Oh, I had a headache and I had to ask for a sick leave．
A：Sorry to hear that．____57___
B：Yes. My mother took me to the hospital．The doctor looked me over and said I had caught a cold．
A： _____58_____
B：Yes,a little．TheDoctor told me to take the medicine three times a day and drink
more water．
A： ____59____
B：Yes，much better．
A：____60_____
B：I will．Thanks a lot．
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A．Was it serious?
B．Did you see theDoctor?
C．Are you feeling better now?
D．How are you?
E．Take more exercise and keep heMthy．
F．What was the matter?
G．I miss you so much．
H．You are so strong．
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Some years ago safety rules_________．
- A.were put forwardDue to scientists’recommendations
- B.came into being as a result of the workers’demand
- C.were introduced because quite a number of people were kiHed or seriously in-jured
- D.were effective enough to protect workers and customers
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It can be inferred from the passage that in the past．_________
- A.workers often got ill because of the poor working conditions
- B.companies were free to put out any products they wanted to
- C.many people were killed by theDangerous products
- D.industries were not as careful in management as they are today
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根据下列材料回答下列各题。
Passage Five
Some years ago industries had more freedom than they have now，and theyDid not need tobe as careful as they must today．TheyDid not need to worry a lot about the safety of the newproducts that theyDeveloped．TheyDid not have to pay much attention to the health and safetyof the people who worked for them．Often new products wereDangerous for the people who usedthem；often conditions in the work place had very bad effects on the health of the workers．
Of course sometimes there were realDisasters which attracted the attention of governmentsand which showed need for changes．Also scientists who wereDoing research into the health ofworkers sometimes produced information which governments could not ignore．At such times，there were inquiries into the causes of theDisaster or the problems．New safety rules were oftenintroduced as a resuIt of these inquiries；however，the new rule；came too late to protect thepeople whoDied or who became seriously ill．
Today many governments have specialDepartments which protect customers and workers.In the U．S．，for example，there is aDepartment which tests new airplanes and gives warningsabout possible problems．It also makes the rules that aircraft producers must follow．AnotherDe—partment controls the foods andDrugs that companiessell．A thirdDepartment looks at theplaces where people work，and then reports any companies that are breaking laws which protectthe health and safety of workers．Of course，new governmentDepartments and new laws cannotprevent every accident or illness，but they are having some good results．Our work places aresafer and cleaner than before．The planes and cars which we use for travel are better．Producersare thinking more about the safety and health of the people who buy and use their products
The main topic of the passage is_________．
- A.conditions in the work place
- B.the freedom of industries in the past
- C.changes in industrial production
- D.the safety and health of workers and customers
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根据下列材料回答下列各 题。Passage Two

根据下列材料回答下列各题。
Passage Two