问题 选择题

哥伦布于1492年第一次沿图中①线用了37天时间横渡大西洋到达美洲,次年沿图中②线仅用20天到达美洲。我国郑和沿图中③线下西洋比哥伦布航行大西洋早了整整半个世纪。据该图回答26—27题。

小题1:从利于航行的角度考虑,郑和下西洋的最佳季节应是

A.春季

B.夏季

C.秋季

D.冬季小题2:哥伦布第二次比第一次去美洲航期缩短了17天,原因是        

A.第一次航程长

B.1493年哥伦布顺着加那利寒流和北赤道暖流航行

C.1492年哥伦布顺着北大西洋暖流航行

D.第二次使用了蒸汽动力

答案

小题1:D

小题2:B

小题1:本题考查洋流的分布。我国受季风影响,冬季我国吹北风,沿海地区受北风影响,洋流向南流。所以本题选择D选项。

小题2:本题考查洋流的地理意义。第二次航行顺着加那利寒流和北赤道暖流,顺洋流航行快。所以本题选择B选项。

单项选择题
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     (Reuters Life! ) - Families in New York and Louisville, Kentucky might be happy to know they

live in two of the safest U.S. cities for children.

     Both urban areas scored high marks in a study that assessed 50 of the largest U.S. cities on 25

safety criteria such as proximity(接近) of hospitals, bike helmet laws and how quickly local fire

departments respond to determine the safest cities for children.

     "It's clear that most cities are doing great things to improve safety at home and in the community,"

said Gus Schaefer of Underwriters Laboratories (UL), an independent safety certification provider that

conducted the research.

     New York firefighters were the quickest to respond to emergencies, while Louisville pedestrians

(行人) were among the least likely to be in a traffic accident, according to the study.

     Boston parents can breathe easy knowing they live in the city with the most hospitals per capita

(人均) and Portland, Oregon got honors for its low drowning rates and air quality.

     Virginia Beach scored high marks because car passengers under the age of 18 have to wear

seatbelts, even if they are riding in the back seat.

     Columbus, Minneapolis, San Francisco, Seattle and Tampa were also among the safest cities.

     Although the study did not rank the cities, it showed that the vast majority have anti-smoking laws

and all have smoke alarm laws.

     One area where there might still be room for improvement is bike helmet laws. Only 39 of the

largest urban areas have bike helmet laws.

     But 47 out of 50 cities had some non-smoking laws and an equal number required CO alarms.

And all the cities insisted on inspections after construction or remodeling projects.

     In addition to local and state laws to keep their children safe, UL said families can also take

measures to improve the safety of their children, including making sure television stands are well fixed

and having a fire escape plan.

1. The passage is mainly about         .

A. how to keep children safe          

B. the most popular U.S. cities

C. the safest U.S. cities for kids        

D. the various laws in the U.S. cities

2. What do we know about New York from the passage?

A. New York has the fewest traffic accidents.

B. The air quality in New York remains stable.

C. Car passengers in New York have to wear seatbelts.

D. New York firefighters react quickly in emergencies.

3. What does the underlined phrase "breathe easy" in the passage refer to?

A. Stop worrying                

B. Enjoy better health.    

C. Do their jobs happily.          

D. Breathe without difficulty.

4. The safety criteria in the study include all the following EXCEPT        .

A. non-smoking laws  

B. bike helmet laws  

C. traffic rules  

D. families' fire escape plans

5. What did the 50 cities in the study have in common?

A. They all had anti-smoking laws.        

B. They all required factories to fix CO alarms.

C. Their hospitals provided high-quality service.  

D. They had careful examinations of newly completed buildings.