问题 选择题

下面甲图中的A点是晨昏线与某一纬线圈的切点,在一年中,与晨昏线相切的纬线是变化的,因此A点也是移动的。据此完成下面两题。

小题1:当A点移到最低纬度位置时,太阳直射点

A.可能在23°26′N 上

B.可能在赤道上

C.可能在66°34′S上

D.可能在极圈上小题2:乙图中能正确表示A点在一年中的运动轨迹的是

A.AB线

B.CD线

C.EF线

D.AF线

答案

小题1:A

小题2:A

小题1:因为A点是晨昏线与某一纬线圈的切点,而在一年中,晨昏线与纬线圈相切的点最低纬度是66°34′,由于该半球为北半球(地球逆时针旋转),所以其切点应为66°34′N,那么,太阳直射点应在23°26′N上。

小题2:晨昏线与纬线圈的切点随太阳直射点的移动而移动,当太阳直射南、北回归线时,切点在66°34′N上;当太阳直射赤道时,切点在北极点上,从图中可以看出,AB正好在这一范围之内,故应选A。

阅读理解

In a book called Magnificent Obsession, by Lloyd C. Douglas, a description is given of people helping others but doing it secretly. When difficult problems worried an individual, friends nearby would meet to discuss possible solutions without the individual knowing their actions. When a solution was agreed upon, one or two of the friends would carry out the plan and solve the problem secretly, to the great delight of the worried individual. The helpers would stand by privately, content with their success. No reward was given to the problem solvers, not even a sincere “thank you”, because they were never known.

This concept is popular today but in a different way. The phrase “pay it forward” is now used when one person helps another. However, the person helped may not be able to repay the person or group that helped them. So rather than return the favor to their helpers, they are supposed to help someone else in the future, which means they pay it forward. It is a sense of responsibility which makes us want to give back in equal measure to the one who has helped us. But, in this case, the responsibility turns to helping someone in the future.

Suppose your elderly grandmother pays part of your schooling. She may tell you there is no need to repay her because it is a gift from someone who loves you very much. Nothing would please her more than to have you use her money to get a good education.

You may never be able to repay her for such a gift. However, she not only gave you some money, but she provided you with an example that you should also help other people who need it.

People with serious needs are everywhere. Many are children who need better clothes, more books and even better schools. Some are elderly people who can’t afford their medicine or a doctor’s care. Consider how you can “pay it forward” rather than pay money back to your grandmother.

小题1:The helpers in the book “Magnificent Obsession” were not rewarded because ________.

A.they hadn’t solved the problems thoroughly

B.they expected to be paid back in the future.

C.they were friends of the worried individual

D.they had solved the problems secretly小题2: The underlined word “pay it forward” means ________.                    

A.to repay someone who has helped you

B.to help someone else who needs help

C.to help someone who has helped you

D.to pay someone else who needs help小题3:What does the writer suggest with the example of “your elderly grandmother”?

A.We should also lend a hand to other people in need of help.

B.We should work hard to get a good education.

C.We should learn to respect our grandparents.

D.We should never forget to repay people for their help.小题4:By writing the passage, the author wishes people in the world to be ________.

A.honest

B.mysterious

C. unselfish

D.unforgettable

选择题