问题 填空题

人体内血液之所以能在全身血管内循环往返的流动,是因为人体内有一个给血液加压的“加压泵”,这个“加压泵”就是______.

答案

心脏是维持血液循环的一个加压泵,它把血液泵到大脑和全身各个器官,心脏停止工作几分钟就能导致脑的损害,而且不可恢复.身体内的静脉血带着全身各部位的代谢废物和二氧化碳,通过许许多多根静脉,回到右心房,然后通过右心室把血泵到肺部,在肺部把二氧化碳排出去,将氧气结合到血液中;有氧的血液又通过肺,回到左心房,并通过左心室把血泵到全身.这样,人体内的血液就能在全身血管内循环往返的流动.

故答案为:心脏.

完形填空
Learning Chinese may seem difficult to foreigners outside China.  36  , Daisy Raffan, an   37  girl in Britain, hopes to bring the language to the young people.Daisy has   38  an online learning website(网站) to teach the language to as   39  people as possible all over the world.  40  China’s fast development in the world, Daisy thinks   41  important for people to learn the language sooner rather than later.Daisy has   42  Putonghua since the age of five.Two years ago, after she decided to pass on what she had learned, this teenager   43  the idea for the website, kids Chinese club.com.She said, “People are afraid to learn Putonghua.One of the main reasons is that they think it’s an   44  language to learn, but I have had fun   45  it.And I hope what have done is easy and fun.”Her   46  offers a series(系列)of lessons, which are videos of Daisy teaching a group of students on topics from greetings and numbers to Chinese culture.
Daisy’s website has   47  the support of several important persons—the teenager   48  she has received a letter praising(赞扬)her work from Gordon Brown, who is the British Prime Minister(首相).
She said, “I wrote to him and told him what I was doing and got a letter   49 .He said that what I was doing was a really good  50 .I thought it was amazing.I was excited that someone so important was supporting what we’re doing.”
小题1:
A.OtherwiseB.ThereforeC.HoweverD.By the way
小题2:
A.5-year-oldB.18-year-oldC.8-year-oldD.28-year-old
小题3:
A.inventedB.discoveredC.wroteD.set up
小题4:
A.muchB.fewC.manyD.little
小题5:
A.AsB.WhenC.WithD.But
小题6:
A.thisB.thatC.itD./
小题7:
A.taughtB.learntC.drewD.talked
小题8:
A.came outB.came onC.came overD.came up with
小题9:
A.impossibleB.interestingC.excellentD.easy
小题10:
A.tellingB.learningC.writingD.speaking
小题11:
A.e-mailB.magazineC.essayD.website
小题12:
A.wonB.madeC.givenD.beaten
小题13:
A.wondersB.asksC.doubtsD.says
小题14:
A.inB.backC.downD.up
小题15:
A.girlB.designC.ideaD.person
问答题