表示“警告 .“蔑视 .“威胁 等. 这种祈使句里的宾语也是第三人称为主.除了口气凶悍之外.有时还语带讽刺.如: (7) Let him try and he will expose his inability to work on his own. (8) Let the invaders come and our armed forces will wipe them out in no time. 用"let"的祈使句时.必须注意下列几点: (9) Don't let this type of things happen again. (10) It's raining now. Let's not go out until after the rain. (11) Let the recalcitrant criminals be sent to prison. (12) Let all the dedicated capable staff be promoted. (13) Let the puppy out. (14) Open the windows and let the fresh air in. (15) The room is too sunny. Let the blinds down. (16) Let me alone, please. (17) Let's try it, shall we? (18) Let us do it by ourselves, will you? 从(17)里的"shall we"和(18)里的"will you".不难知道前者包括听话人.后者并没有. 查看更多

 

题目列表(包括答案和解析)

如图甲表示某生物膜结构,图中A、B、C、D、E、F表示某些物质,a、b、c、d表示物质跨膜运输方式。图乙和图丙表示物质运输曲线,请据图回答:


(1)若图甲是癌细胞的细胞膜,则膜上含量较正常细胞减少的物质是[  ]    
(2)若图甲是线粒体膜,b和c过程运输的气体分别是    。b、c运输方式符合图    所表示的物质运输曲线。
(3)若图甲表示人体红细胞膜,则表示Na、K运输的分别是图中      。Na、K的运输方式符合图    所示曲线。
(4)已知红细胞吸收葡萄糖是协助扩散,而有人认为小肠上皮细胞以主动运输的方式吸收葡萄糖,请设计实验加以确定。
①实验步骤:
第一步:取甲、乙两组生理状况相同的小肠上皮细胞,放入适宜浓度的含有葡萄糖的培养液中。
第二步:甲组细胞给予正常的呼吸条件,         
第三步:                
②预测实验结果并分析:
a.若甲、乙两组细胞对葡萄糖的吸收速率基本相同,则         
b.                                

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完形填空
Time is very important in our lives. But it never had any importance in my life until I  1  a watch from my father that made me responsible(有责任). It  2  me the importance of time in my life.
I got this gift on a grey-sky day. I had to go to the  3  at 9:00 a.m. to pick up(接)my uncle Ali and take him to my father’s house. However, I forgot it  4  I was playing with my friends. Later on that day, around 11:00 a.m., I  5  my uncle, but I was late for him. He had got out of the plane and  6  a taxi to my father’s house.
I 7  my father’s house at 2:00 p.m. at the same day . My father looked at me angrily. I said “hi” to him and my  8  uncle. My father asked me to sit  9  him and handed me this watch which was a gift from  10 . It weighed 8 oz(盎司)and all of it was made of silver(银). Then he said, “Essa, did you have fun  11  your friends today? What you did was not very nice and you should be sorry for your  12 .” I felt sorry and told my father that I wouldn’t do it again. Then he said, “This watch will be a reminder(提醒物) for you. I hope today you have learned something  13 .”
I learned a lesson from my father: to respect(尊重) time and  14  be late. The watch is important to me, not because of its  15 , but because of the lesson that I learned from it.

【小题1】
A.boughtB.receivedC.borrowed D.broke
【小题2】
A.learnedB.foundC.sent D.told
【小题3】
A.airportB.schoolC.hospital D.station
【小题4】
A.when B.because C.if D.though
【小题5】
A.sawB.forgotC.remembered D.took
【小题6】
A.hadB.drivenC.invited D.taken
【小题7】
A.visited  B.remindedC.reached D.left
【小题8】
A.surprised B.tiredC.nervous D.lonely
【小题9】
A.next toB.around C.behind D.away from
【小题10】
A.usB.himC.them D.you
【小题11】
A.ofB.forC.with D.about
【小题12】
A.words B.actionsC.play D.fun
【小题13】
A.important B.interestingC.expensiveD.wonderful
【小题14】
A.never B.usuallyC.sometimes D.often
【小题15】
A.look B.priceC.sizeD.weight

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I lost my sight when I was four years old by falling off a box and landing on my head. Now I am thirty-two. I can vaguely(模糊地)  1  the brightness of sunshine and what color red is. It would be wonderful to see things again,  2  a disaster can do strange things to people. It happened to me the other day that I might not have come to love  3  as I do if I hadn’t been blind. I believe in life now. I am not sure that I would believe in it so  4 . I don’t mean that I would prefer to go without my eyes. I  5  mean that the loss of  6  made me enjoy more of  7  I have now.

Life asks us to keep making  8  to reality. If a person is able to get ready for anything changeable his world will  9  more meaningful. I became blind, but I was  10 . My parents and my teachers saw  11  in me-a potential(潜力) to live, you might call it-which I didn’t see, and they make me fight it out with blindness.

The hardest  12  I had to learn was to believe in myself. That was what I had to do at least. If I hadn’t been able to do that, I would become a chair rocker for the  13  of my life. When I say I believe in myself I am not talking about simply the kind of self-confidence that helps me down an unfamiliar staircase  14 . That is part of it. But I mean something bigger than that: A belief that I could deal with anything alone; that somewhere in the  15  there is a special place where I can make myself fit.

1. A. imagine       B. find             C. remember     D. guess

2. A. but           B. though               C. so           D. because

3. A. myself        B. life             C. eyes         D. blindness

4. A. that          B. therefore            C. happily      D. deeply

5. A. seldom        B. just             C. hardly           D. always

6. A. them      B. it                   C. blindness        D. light

7. A. that          B. what             C. which            D. where

8. A. moments       B. encouragements       C. improvements D. changes

9. A. become        B. change               C. look         D. end

10. A. brave        B. lucky                C. sad          D. wise

11. A. something    B. everything           C. nothing      D. anything

12. A. problem      B. experience           C. difficulty       D. lesson

13. A. rest     B. whole                C. need         D. last

14. A. lonely       B. alone                C. self         D. person

15. A. company  B. group                C. society  (社会)   D. family

 

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用方框里适当的句子补全对话。(10分)

A. Hello! What’s your name?

B: My name’s Eric.

A:  1. (        ) 

B: Fine, thank you.  2. (        ) 

A: Nice to meet you,too.  3. (        ) 

B: It’s 353-73326.

A:  4.(        ) 

B: His name is Tony.

A:  5. (        ) 

B: His phone number? Sorry, I don’t know.

 

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英汉互译

1.look into    

2.处置;处理    

3.grow up      

4.与……一起玩        

5.from... to...        

6.属于      

7.at the bus stop      

8.爆炸;响起      

9.in bed       

10.某人发生……         

 

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