问题 探究题

陈明和张华同学合作做“探究物体所受的重力大小与物体质量的关系”实验。陈明负责操作,张华负责记录实验数据。表中数据是记录的实验结果。

(1)实验中所用的主要器材有 _________________________________ ;

(2)分析表中的数据可知:物体的质量越大,所受的重力越 ____ ( 大/小)。物体所受重力的大小与质量成 ____ 比。

(3)若用G表示物体所受的重力,用m表示物体的质量,用g 表示重力与质量的比值,则:g = G/ m。根据实验结果,g = ____ N/kg。

答案

(1)托盘天平;弹簧测力计

(2)大;正

(3)9.7

选择题
完形填空

第二节:完形填空(每小题1.5分,满分30分) 

When Dave was eighteen, he bought a second-hand car for £200 so that he could travel to and from work more  36  than by bus. It worked quite well for a few years, but it got so old, and it was costing him _37  much in repairs, that he decided that he had better  38  it.

He asked among his friends to see if anyone was  39  to buy a cheap car, but they all knew that it was falling to pieces, so  40  of them had any desire to buy it.

Dave’s friend Sam saw that he was  41  when they met one evening, and said, “What’s  42  , Dave?” Dave told him, and Sam answered, “Well, what about advertising(登广告) it in the paper? You may  43_more for it that way than the cost of the advertisement!” Thinking that Sam’s  44  was reasonable, he put an advertisement in an evening paper, which read: “For sale: small car,  45  very little gas, only two owners. Bargain at £50.”

For two days after the advertisement first appeared, there was no  46_. but then on the Saturday evening he had an enquiry (咨询). A man rang up and said he would like to  47  him about the car. “All right.” Dave said, feeling happy. He asked the man whether ten o’clock the next morning would be  48_  or not. “Fine,” the man said, “and I’ll  49  my wife. We want to go for a ride in it to  50  it.”

The next morning, at a quarter to ten, Dave parked the car in the square outside his front door,  51  to wait there for the people who had  52  his advertisement. Even Dave had to  53  that the car really looked like a wreck (残破的车). Then, soon after he had got the car as  54  as it could be, a police car stopped just behind him and a policeman got out. He looked at Dave’s car and then said, “Have you reported this _55  to us yet, sir?”

36. A、directly       B、safely       C、properly        D、easily

37. A、so               B、such         C、very                  D、too

38. A、keep           B、repair       C、sell                   D、throw

39. A、willing        B、lucky       C、ashamed            D、generous

40. A、some           B、neither             C、none             D、most

41. A、delighted     B、sad               C、calm             D、astonished

42. A、on              B、up                C、it                  D、that

43. A、learn        B、miss         C、get                    D、find

44. A、message      B、advice       C、request              D、description

45. A、uses            B、loses        C、has                    D、spends

46. A、doubt          B、help            C、trouble                 D、answer

47. A、tell             B、see              C、agree             D、call

48. A、exact           B、suitable       C、early             D、late

49. A、follow       B、meet        C、bring             D、introduce

50. A、recognize    B、get           C、admire                 D、test

51. A、happening   B、meaning      C、turning              D、failing

52. A、read            B、inserted       C、answered           D、placed

53. A、forget       B、show        C、disagree             D、admit

54. A、clean           B、admit       C、fast                   D、light

55. A、bargain       B、sale             C、accident             D、result