英語四級仔細閱讀專練題附答案解析

　　仔細閱讀是英語四級考試中的必考題型，在剩下的備考時間裡必須抓緊閱讀練習，下面小編為大家帶來英語四級仔細閱讀專練題解析，供各位考生閱讀練習。

　　英語四級仔細閱讀專練題***一***

　　Henry III didn't know much about biology. He went through six wives back in the 1500s, looking for one whocould bear him a son. Scientists now know that it's the father's sperm, not the mother's egg, which determines whether a baby is a boy or a girl. And last week researchers at the Genetics and IVF Institute, a private fertility***生育能力***center in Virginia, announced a new technique that will allow parents to choose the sex of their baby-to-be, before it has even been conceived. The scientist used a tiny laser detector to measure the DNA in millions of sperm cells as they pass single file through a narrow tube, like cattle being herded through a corral***牲口欄***. In a study published last week, "girl sperm," which has more DNA—the genetic material— in each cell, was collected, while "boy sperm" was discarded. And when purified girl sperm was used to impregnate***使受孕***a group of mothers, 15 of 17 resulting babies turned out to be girls.

　　The researchers say that "sex selection" can also double a mother's chance of having a son and can be usedto avoid genetic diseases that affect only one gender, such as hemophilia***血友病***. But some experts, like New York University fertility specialist Dr. Jamie Grifo, worry that sex selection could lead to a kind ofin uteri***子宮***discrimination, especially in cultures where sons are considered superior to daughters. "It's valuing one gender' over another," Grifo says. "I don't think that's something we should be doing." So far, patients at the institute have been asking for both boys and girls, in order to "balance" their families. And some ethics experts say that's fine, as long as parents are just looking for a little gender variety. "If you have three boys, and you want a girl," says University of Texas reproductive-law professor John Robertson, "that's not gender bias at all."

　　練習題：

　　Choose correct answers to the question:

　　1.The DNA in the sperm cells can be measured ______.

　　A.in the same way how the cattle are herded

　　B.when they pass through a tube one behind the other

　　C.after they pass through a laser tube

　　D.when they are scanned by a laser detector all at a time

　　2.The gender of the baby is decided by ______.

　　A.the father's DNA

　　B.the mother's DNA

　　C.the father's sperm

　　D.the mother's egg

　　3.According to this passage, the practice of "sex selection" ______.

　　A.can help to prevent all genetic problems

　　B.is totally unacceptable to ethics experts

　　C.was already realized five hundred years ago

　　D.will benefit families with certain inheritable diseases

　　4.Girl sperm was preferred to boy sperm in the research most probably because____

　　A.girl sperm contains more genetic material

　　B.more mother want to have girl babies

　　C.girl sperm is healthier and more active

　　D.girl sperm is more easily purified

　　5.It can be concluded from the passage that author’s toward”sex selection”is____

　　A.negative

　　B.positive

　　C.neutral

　　D.favorable

　　英語四級仔細閱讀專練題答案

　　1.[B] 推理判斷題。解答本題的關鍵在於推斷single file的意思。該句把精子通過試管的情形與牛群被趕入牲口圈的情形作對比，結合single一詞本身的意思，可以推斷single file是“一個接一個”的意思，只有選項B能表達這個意思，由此也可否定選項D。選項A最具干擾性，原句是把精子通過試管的情形比作牛群被趕人牲口圈的情形，而選項A說的是測定精子內DNA的方法與放牧的方法相同，顯然選項A只是引用了原文的某些詞語，但表達的意思與原文卻截然不同。

　　2.[C] 事實細節題。第1段第3句which引導的非限制性定語從句修飾的是the father's sperm，而不是插入語the mother’s egg,因此選項C正確。

　　3.[D] 推理判斷題。第2段第1句中的genetic暗示有些疾病是遺傳的，即如選項D所述。第2段第1句同時表明選項A的說法是不全面的。選項B與第2段最後兩句正好相反。第1段前兩句說明選項C是錯誤的。

　　4.[A] 事實細節題。第1段倒數第2句中的由which引導的定語從句表明選項A的敘述正確。

　　5.[C] 觀點態度題。文章第2段中作者給出了一些反對者和贊成者的觀點，但是沒有加以評論，可以看出作者的態度是中立的，故選項C正確。

　　英語四級仔細閱讀專練題***二***

　　Hardly a week goes by without some advance in technology that would have seemed incredible50 years ago. And we can expect the rate of change to accelerate rather than slow down withinour lifetime. The developments in technology are bound to have a dramatic effect on the futureof work. By 2010, new technology will have revolutionized communications. People will betransmitting messages down telephone lines that previously would have been sent by post.Not only postmen but also clerks and secretaries will vanish in a paper-free society. All theroutine tasks they perform will be carried on a tiny silicon chip so that they will be asobsolete***已廢棄的*** as the horse and cart after the invention of the motorcar. One change willmake thousands, if not millions, redundant.

　　Even people in traditional professions, where expert knowledge has been the key, are unlikelyto escape the effects of new technology. Instead of going to a solicitor, you might go to acomputer that is programmed with all the most up-to-date legal information. Doctors, too, willfind that an electronic competitor will be able to carry out a much quicker and more accuratediagnosis and recommend more efficient courses oftreatment. In education, teachers will belargely replaced by teaching machines far more knowledgeable than any human being. Mostlearning will take place in the home via video conferencing. Children will still go to schoolthough, until another place is created where they can make friends and develop social skills.

　　練習題：

　　Choose correct answers to the question:

　　1.According to the writer, the rate of change in technology______.

　　A.will remain the same

　　B.will slow down

　　C.will speed up

　　D.can not be predicted

　　2.The writer expects that by 2020 new technology will have revolutionizedcommunications and ____

　　A.people needn’t telephone each other

　　B.the present postal system will have disappeared

　　C.people will no longer send letters

　　D. the postmen will have been replaced by silicon chip.

　　3.The word “they” ***Line 6，Para. 1*** refers to _____.

　　A. the tiny silicon chips

　　B.the letter written on paper

　　C. the postmen, clerks and secretaries

　　D.the routine tasks performed by the postmen

　　4.From the second paragraph, we can infer that _____

　　A. professionals won’t be affected by new technology

　　B.doctor won’t be as efficient by the postmen

　　C. computers cannot replace lawyers

　　D.experts will lose job in the future

　　5.In the writer’s view, _______.

　　A.people should get prepared for the future

　　B.there exists no real threat of unemployment

　　C.the advance of technology is not desirable

　　D.machines will have control over men

　　英語四級仔細閱讀專練題答案

　　1.[C] 事實細節題。只要知道第1段第2句中的關鍵詞accelerate意為speed up“加速,加快”，就可以排除其他選項。

　　2.[B] 事實細節題。本題考査對比處。作者在第1段第5句中通過previously將過去與現在作對比,指出現在傳遞訊息的途徑與過去不一樣了，由此可判斷B為正確選項。本題最具干擾性的是選項C，第1段倒數第3句提到以 後郵遞員將會消失，但這並不意味著人們不再寫信和寄信，以後可能會有新的送信方式，因此選項C是不對的。

　　3.[C] 詞義推斷題。they所在的句子是第1段倒數第2句，本句中兩個they的指代是一樣的，因此，只要找到第一個they的指代就能找到答案了。根據本段倒數第3句中“Not only postmen but also clerks and secretaries will vanish”及倒數第2句中的“All the routine tasks they perform...”可推斷，they是指上一句中的postmen，clerks 和secretaries 。

　　4.[B] 推理判斷題。本題考査列舉處。在第2段,作者列舉了律師、醫生、教師將會受到的新技術的影響，第3句指出醫生的電子競爭者會做出更快更準的診斷,從而確定選項B說法正確，而選項A和C與原文不符，選項D言過其實，且缺乏合理的原文依據。

　　5.[A] 觀點態度題。作者舉出了大量例項暗示和告誡人們：正因為人類技術的發展日新月異，許多職業的存在都將受到威脅，人們應該採取積極態度以應對這種變化。選項B顯然與第1段最後一句相悖;選項C無合理的推 斷依據;文中雖提到新技術會在多方面影響人類,但並不能由此推斷機器會控制人類,所以選項D不對。