问题 不定项选择

有同学这样探究太阳的密度:正午时分让太阳光垂直照射一个当中有小孔的黑纸板,接收屏上出现了一个小圆斑;测量小圆斑的直径和黑纸板到接收屏的距离可大致推出太阳的直径.他掌握的数据是:太阳光传到地球所需的时间、地球的公转周期、万有引力常量;在最终得出太阳密度的过程中,他用到的物理规律是小孔成像规律和[ ]

A.牛顿第二定律

B.万有引力定律

C.万有引力定律、牛顿第二定律

D.万有引力定律、牛顿第三定律

答案

答案:C

阅读理解

Mr. Grey was the manager of a small office in London. He lived in the country, and came up to work by train. He liked walking from the station to his office unless it was raining, because it gave him some exercise.

One morning he was walking along the street when a stranger stopped him and said to him, “You may not remember me, sir, but seven years ago I came to London without a penny in my pockets, I stopped you in this street and asked you to lend me some money, and you lent me £ 5, because you said you were willing to take a chance so as to give a man a start on the way to success.”

Mr. Grey thought for a few minutes and then said, “Yes, I remember you. Go on with your story!” “Well,” answered the stranger, “are you still willing to take a chance?”

小题1:How did Mr. Grey get to his office?

A.He went up to work by train.

B.He walked to his office.

C.He went to his office on foot unless it rained.

D.He usually took a train to the station and then walked to his office if the weather was fine.小题2: Mr. Grey liked walking from the station to his office because ________.

A.he couldn’t afford the buses

B.he wanted to save money

C.he wanted to keep in good health

D.he could do some exercises on the way小题3:Mr. Grey had been willing to lend money to a stranger in order to______.

A.give him a start in life

B.help him on the way to success

C.make him rich

D.gain more money小题4:One morning the stranger recognized Mr. Grey, and_______.

A.wanted to return Mr. Grey the money

B.again asked Mr. Grey for money

C.would like to make friends with him

D.told Mr. Grey that he had been successful since then

单项选择题