C.hear表示听到的结果.listen to表示听的动作.故选C. 查看更多

 

题目列表(包括答案和解析)

When does your father arrive ___ our school.
  A. to    B. in    C. at    D. from
  

C arrive at 表示到达小地点 
 

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下列语句中与“山重水复疑无路,柳暗花明又一村”,蕴含相同哲理的是
A.只会在水泥地上走路的人,永远不会留下深深的脚印
B.如果惧怕前面跌宕的山岩,生命就永远只能是死水一潭  
C.海浪为劈风斩浪的航船饯行,为随波逐流的轻舟送葬
D.山路陡峭盘旋,但毕竟朝着顶峰延伸

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Stop ______ so much noise! My father is sleeping.

[     ]

A. to make   
B. making    
C. to hear    
D. hearing

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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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Listen to the dialogues and choose the best answer to each of the questions you hear. (根据你听到的对话和问题,选出最恰当的答案,用A、B、C或D表示,填入空格内。)

(     )1. A. She's in a stamps show.
           B. She's in a shoe shop.
           C. She's looking for her shoes.
           D. She wants to buy a pair of stocking.
(     )2. A. He's watching a football game.
           B. He's a good footballer.
           C. He's playing in a football match.
           D. He's a football fan.
(     )3. A. He wants to go to the college. 
           B. He must finish his homework first.
           C. He has decided to go for a holiday in China. 
           D. He can't work out a solution. 
(     )4. A. He's a taxi driver.
           B. He's an engineer.
           C. He's a worker in a car factory.
           D. He's a manager of a restaurant.
(     )5. A. Tony bought a new glass for Annie.
           B. Annie said sorry to Tony.
           C. Annie borrowed a glass from Tony.
           D. Annie's glass was broken by Tony.
(     )6. A. Eighteen dollars. 
           B. Eight dollars.
           C. Eighty dollars.
           D. Eighty-eight dollars.

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