试题与答案

下列关于一些微量元素对人体作用的说法中不正确的是( ) A.锌元素能影响人体发育

题型:选择题

题目:

下列关于一些微量元素对人体作用的说法中不正确的是(  )

A.锌元素能影响人体发育,缺锌会引起食欲不振,生长迟缓,发育不良

B.硒有防癌、抗癌作用,但摄入量过高会使人中毒

C.氟能防治龋齿,过量则会引起氟斑牙和氟骨病

D.碘是甲状腺素的重要成分,除每天食用碘盐,还可以服用大量补碘药剂

答案:

A、锌影响身体发育,缺乏会引起食欲不振,生长迟缓,发育不良.故选项说法正确;

B、硒有防癌、抗癌作用,缺硒可能引起表皮角质化和癌症,但摄入量过高会使人中毒,故选项说法正确;

C、氟能防治龋齿,缺氟易产生龋齿,过量则会引起氟斑牙和氟骨病,故选项说法正确;

D、碘是甲状腺素的重要成分,服用大量补碘药剂会造成摄入量过高,也会引起甲状腺肿大,故选项说法错误.

故选D.

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题型:完形填空

第二节 完形填空(共20小题,每小题1.5分,共30分)   

阅读下面短文,掌握其大意,从每题所给的A、B、C、D四个选项中,选出最佳选项并在答题卡上将该项涂黑。

More good things come from small things

About a year ago, a couple with three children moved into the apartment next door to me.

I never heard any  36 from the children, but the parents were always shouting at the kids.

We  37 often in the hallways when we were coming or going. I  38 spoke, but the only   39 I ever got was a hello from the four – year – old girl.

I usually go out for breakfast and one day when I  40 they were just coming from their apartment and the little girl was holding the door   41 for the others. I  42 in the car doing unnecessary things because I didn’t like to be snubbed(冷落). The parents were   43 her to hurry and get in the car, I looked up and saw the little girl was   44 holding the door open,  45 for me.

I hurried as much as I could and   46 her. She was smiling from ear to ear. That afternoon I saw a white toy bear, I   47 the little girl and said to myself, “I   48 she would like that” so I bought it. I wrote a note   49 how much her act of kindness had touched a soft spot in an old man’s   50 .

The next day there was a   51 on the door and   52 was the little girl and her father. She was so proud of her bear and thanked me. Then I   53 her mother and the other children were there in the hall too. The mother and father both thanked me.

Now when we meet in the hall we all speak, and in a   54 manner, I might add.  55 time

passes, I don’t hear that shouting as often. In fact, hardly at all. 

36.A.sound                 B.noise                   C.conversation        D.crying

37.A.met                    B.saw                     C.visited                 D.gathered

38.A.never                  B.sometimes           C.seldom                D.always

39.A.reward                B.action                 C.answer                D.prize

40.A.moved                B.returned              C.started                 D.drove

41.A.open                   B.closed                 C.fit                       D.active

42.A.stopped               B.kept                    C.worked               D.remained

43.A.suggesting           B.telling                 C.forcing                D.making

44.A.ever                    B.even                   C.still                     D.yet

45.A.waiting               B.calling                C.leaving                D.asking

46.A. replaced             B.encouraged          C.ignored               D.thanked

47.A.thought about      B.thought of           C.thought over        D.thought out

48.A.decide                 B.am lucky             C.am sure               D.doubt

49.A.saying                 B.stating                C.reporting             D.writing

50.A.mind                  B.body                   C.thought               D.heart

51.A.hit                      B.knock                 C.drop                   D.beat

52.A.she                     B.it                        C.they                    D.he

53.A.noticed               B.watched              C.recognized           D.felt

54.A.kindly                 B.politely               C.coldly                 D.friendly

55.A.When                 B.Since                  C.As                      D.While

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