0  390179  390187  390193  390197  390203  390205  390209  390215  390217  390223  390229  390233  390235  390239  390245  390247  390253  390257  390259  390263  390265  390269  390271  390273  390274  390275  390277  390278  390279  390281  390283  390287  390289  390293  390295  390299  390305  390307  390313  390317  390319  390323  390329  390335  390337  390343  390347  390349  390355  390359  390365  390373  447090 

1、电子守恒规律

还原剂失电子总数(或物质的量)=氧化剂得电子总数(或物质的量)

作用:有关氧化还原反应的计算

配平氧化还原反应方程式

[思考与交流]

试题详情

第二节:写作(满分30分)

    假设你是新华中学的学生张华,班里从外地转来一名同学李明,他一时无法融入到新的班集体中,感到很苦恼。请根据下列要点用英语(Q吧)给他写封信。

    1.帮他分析原因;

    2.给他提出建议;

    3.陈述你帮助他的具体打算。

    注意:词数120-150

Dear Li Ming,

                                        

                                        

                                        

                                        

                                        

                                         

                                        

                                        

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第二节:完形填空(共20小题;每小题1分,满分20分)

    A boy selling magazines walked up to a house people seldom visited.The house was old and the owner  36  came out.When he did come out he wouldn't say hello to anybody  37  simply stared at them.

    The boy knocked on the door and __38__.As he was ready to  39  away, the door slowly opened."What do you want?" the old man said.

    "Uh, sir, I'm selling these magazines and I was  40  if you'd like to buy one." The old man  41   stared at the boy.The boy could see the inside of the house and  42  some dog figurines(小雕像)."Do you  43  dogs?" the boy asked."Yes, I do.They're my family here and they're all I have." The boy felt sorry for the man, as he seemed to be very   44  ."I've a magazine here for collectors.It's perfect for you.I also have one about dogs since you like dogs so much." But the old man said, "I need  45  of the magazines, now goodbye."

    The boy was sad.He went home and then an idea  46  to him..He had a little dog figurine.He walked back to the old man's house with the  47 .He knocked on the door again and this time the old man came right to the door."Boy, I  48  I told you no magazines."

    "No, sir.I know that.I wanted to bring you a  49  ." The boy handed him the figurine and the old man's face  50  ."It's a Golden Retriever.I have one at home.

    This one is  51  you." The old man was  52  ; no one had ever shown him so much  53 ? "Boy, you have a big   54  .Thank you!" From that day on the old man  55  coming ont of the house and talking with people.

36.A.regularly     B.never       C.hardly                 D..nearly

37.A.but                       B.when       C.as       D.so

38.A.hurried    B.remained     C.waited                  D.left

39.A.drive       B.run        C.escape                 D.walk

40.A.wondering                   B.saying       C.doubting        D.hoping

41.A.ever    '  B.yet        C.still          D.just

42.A.loved                     B.noticed      C.contacted      D.sensed

43.A.help                       B.raise       C.collect        D.like .

44.A.lonely     B.cruel        C.old                   D.terrible

45.A.nothing      B.none       C.either                  D.some

46.A.happened                  B.reached     C.brought        D.occurred

47.A, fear        B.magazine     C.figurine    D.idea

48.A, imagined     B.thought      C.wished                  D.expected

49.A.friend       B.dog       C.gift      D.book

50.A.went up                     B.turned up     C.grew up    D.lit up

51.A, with        B.for         C.on                    D.in

52.A.surprised     B.calm       C.disappointed              D.encouraged

53.A.pity      B.kindness      C.politeness                D.happiness

54.A.hand                      B.eye        C.heart         D.head

55.A.continued                    B.started       C.avoided       D.risked

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35.-Sorry, I made a mistake again.

    -_____.Practice more and you'’ll succeed.

    A.Never mind             B.Certainly not

    C.Not at all               D.Don't mention it

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34.Would it be _____ for you to pick me up at four o'clock and take me to the airport?

    A.free        B.vacant      C.handy                  D.convenient

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