问题 填空题

游泳时,手用力向后划水,人因此向前游动,可见力的作用是______.

答案

游泳时人用力向后划水,由于物体间力的作用是相互的,人给水一个向后的作用力,

同时,水也给人一个向前的推力,所以人会向前游动.

故答案为:相互的.

完形填空

Down-to-earth means someone or something that is honest, practical and easy to deal with. It is 1 to find someone who is down-to-earth. A person who is down-to-earth is easy to talk to and 2 other people as equals. A down-to-earth person is just the 3 of someone who acts important and prouD.

  Down-to-earth persons 4 be important members of society. 5 they don’t let their importance “go to their heads”. They do not 6 themselves to be better persons than others of less importance. Someone who is filled with his own importance and pride, often without cause, is 7 to have “his nose in the air”. There is 8 way a person with his nose in the air can be down-to-earth.

  Americans 9 another expression that means almost the same as down-to-earth. The expression is “both-feet-on-the-ground”. Someone with both-feet-on-the-ground is a person with a good 10 of reality. He 11 what is called “common sense”. He may have 12 , but he does not allow them to 13 his knowledge of what is real. The opposite kind of 14 is one who has hid “head-in-the-clouds”. A man with his head-in-the-clouds is a dreamer whose 15 is not in the real world.

  16 , such a dreamer can be brought back to reality. 17 words from a teacher can usually get a day-dreaming student to put both feet back on the grounD.Usually, the person who is down-to-earth is very 18 to have both feet on the ground.19 we have both our feet firmly on the ground, we are down-to-earth, and we act honestly and openly 20 others. Our lives are like the ground below us, said and strong.

1.A.pleasant     B.sad             C.common D.surprising

2.A.meets       B.welcomes        C.receives   D.accepts

3.A.case      B.kind            C.opposite   D.example

4.A.must        B.may            C.should     D.will

5.A.But       B.So           C.For      D.And

6.A.wish         B.expect         C.desire      D.consider

7.A.said         B.told            C.asked       D.made

8.A.some        B.a             C.no         D.every

9.A.discover    B.find            C.make       D.use

10.A.understanding B.wish        C.reason      D.expectation

11.A.demands B.lacks            C.has      D.likes

12.A.fortunes   B.dreams         C.achievements   D.disadvantages

13.A.block       B.protect         C.Own     D.gain

14.A.idea       B.people        C.attitude    D.person

15.A.mind       B.life            C.body        D.head

16.A.Always    B.Therefore        C.However D.Sometimes

17.A.Sharp      B.All          C.No      D.Bad

18.A.possible   B.probable       C.likely       D.able

19.A.Though    B.Since          C.When      D.Unless

20.A.towards   B.for            C.over      D.Onto

填空题