科技類題材完形填空練習(xí)

完形填空:閱讀下面短文， 掌握其大意， 然后從21~30各題所給的A、B、C和D項(xiàng)中選出最佳選項(xiàng)。

(1)

Our era is described as “the age of melancholy”. People today experience more__21__than previous generations， despite the technological wonders that help us every day. It might be because of them.

Our lifestyles are increasingly__22__by technology. There is a constant__23__to check for texts and email， to acquire the latest notebook or 3G cellphone.

Are we being served by these technological wonders or have we become__24__by them? It seems that we are sleepwalking into a world where technology is severely affecting our well-being. In many homes， the computer has become the centre of__25__.

How did this__26? In this era of mass consumption， we are surrounded by advertising that urges us to find fulfilment through the__27__of material goods. As a result， people increasingly believe that in order to belong and feel good about themselves， they must own the latest model or gadget.

Yet research has shown that people who__28__a high value on material goals are unhappier than those who are less materialistic. Materialism is also__29__with lower self-esteem， greater narcissism， greater tendency to compare oneself__30__with other people， less empathy and more conflict in relationships.

(2)

A 23-year-old Nigerian man was charged with trying to destroy a Detroit-bound airliner on Christmas Day. The man__21__to set off explosives hidden in his underwear， Due to this terrorist attack， airport authorities are rushing to__22__full-body scanners at airports to prevent__23__attacks despite privacy concerns about machines that can scan beneath clothing to__24__items that may be hidden from ordinary view and depict naked images of passengers passing through them.

But their efforts could be prevented by the fact that the scanner technology has not yet been__25 given permission by national governments to be fit for this__26__and manufacturers will not invest in mass__27__until it has.

According to a spokesman for the UK Department for Transport， body-scanner__28__will be on the agenda(列入議程)at a meeting of the European Commission′s aviation security committee， at which responses to the__29__attack will be considered. European security officials are also meeting a senior delegation from the US Department of Homeland Security.

Privacy campaigners and children’s rights groups said the technology， now being tested at Manchester Airport，__30__British and European law by producing sexually clear images of children. Other critics of the so-called millimeter wave technology machines said that not enough testing had been done to prove they were safe

(3)

Reproductive cloning is expensive and highly inefficient. More than 90% of cloning__21__fail to produce children that are capable of normal growth and development. In addition to low success rates， cloned animals__22__to have more compromised immune function and higher rates of infection， tumor growth， and other disorders. About a third of the cloned calves born alive have died__23__， and many of them were__24__large. Many cloned animals have not lived long enough to generate good data about how clones__25__. Appearing healthy at a young age unfortunately is not a good indicator of long-term__26__. In analyzing more than 10，000cloned mice， researchers discovered that about 4% of genes function abnormally. The abnormalities__27__from changes in the normal expression of certain genes.

__28__may also result from programming__29__in the genetic material from a donor (供體) cell. When an embryo is created from the union of a sperm and an egg， the embryo receives copies of most genes from both parents. A process called“imprinting”chemically marks the DNA from the mother and father so that only one copy of a gene is turned on. Defects(缺陷)in the DNA from a single donor cell may lead to some of the__30__abnormalities of cloned embryos.

21.A. surveys B. investigations

C. venturesD. attempts

22.A. attempt B. tend

C. manage D. try

23.A. young B. old

C. weakD. infectious

24.A. formallyB. occasionally

C. abnormallyD. unfortunately

25.A. live B. grow

C. function D. age

26.A. arrival B. appearance

C. survivalD. efficiency

27.A. arise B. arouse

C. rise D. vary

28.A. Strengths B. Improvements

C. Problems D. Changes

29.A. inventionsB. errors

C. creations D. discoveries

30.A. united B. curable

C. inefficient D. developmental

答案與解析

(1)我們的時(shí)代被稱為“憂郁”的時(shí)代。科技高速發(fā)展，而我們的生活方式卻越來越受之奴役。

21. D。第一句中的melancholy和depression意思相近。故選D。

22. B。人們的生活方式受科技的驅(qū)使。選B。

23. A。人們不斷地覺得有看自己的e-mail等的需要。選A。

24. C。being served 與 become enslaved對(duì)照，說明人們?cè)絹碓绞芨呖萍籍a(chǎn)品的奴役。選C。

25. B。the centre of attention 意思是“關(guān)注的焦點(diǎn)”。選B。

26. A。arise作vi.使用，相當(dāng)于come about， arouse作vt.使用。選A。

27. D。the acquisition of material goods 意思是“物質(zhì)的獲得”。選D。

28. B。place a high value on 意思是“重視”，當(dāng)今很多人以追求物質(zhì)為目標(biāo)，因此很不開心。故選B。

29. C。be associated with 意思是“和……有關(guān)系”，該句的意思是:物質(zhì)主義和自尊心不足等等有關(guān)系。故選C。

30. D。unfavorably 意思是“不利地、不適宜地”，該句意思是:追求物質(zhì)主義者有與人相比較的傾向;該段有多個(gè)貶義詞:unhappier， lower self-esteem， greater narcissism (自戀)， less empathy， more conflict。選D。

(2)去年圣誕節(jié)發(fā)生在美國航班上的未遂恐怖襲擊引出了全身掃描器投入機(jī)場(chǎng)安檢使用的問題。

21. B。attempt to set of explosives企圖引爆炸藥(但未能成功);manage to do sth 成功做成某事。選B。

22. D。install “安裝”;機(jī)場(chǎng)急于安裝全身掃描器。選D。

23. C。機(jī)場(chǎng)急于安裝全身掃描器防止類似恐怖襲擊。選C。

24. C。全身掃描器能檢測(cè)出藏在內(nèi)衣底下一般儀器檢測(cè)不出來的物品。選C。

25. A。officially“官方地、正式地”可是這么先進(jìn)的科技還未能得到政府正式頒發(fā)的專業(yè)合格證。選A。

26. B。由于該儀器還未能得到官方使用許可，因此不能用于安檢這一目的。選B。

27. C。全身掃描器的生產(chǎn)商要等到該儀器得到了許可才會(huì)投資大量生產(chǎn)。選C。

28. D。據(jù)發(fā)言人稱，全身掃描器的使用核定批準(zhǔn)已經(jīng)提上議事日程。選D。

29. B。failed attack不成功的襲擊，襲擊未遂。選B。

30. A。violate the law違法。選A。

(3)生殖性克隆效率低下，超過90%的克隆嘗試未能出示可行的后代。除了成功率低，克隆動(dòng)物往往出現(xiàn)免疫功能差，容易感染和早逝等問題。

21. D。attempt 意思是“嘗試”，該句意思是:超過90%的克隆嘗試未能出示可行的后代。選D。

22. B。tend to do sth. “有 ...... 的傾向”，克隆動(dòng)物有缺乏免疫力的傾向。選B。

23. A。die young“早逝”，克隆動(dòng)物有早逝等問題。選A。

24. C。克隆動(dòng)物的又一問題就是出生的時(shí)候大得不正常。選C。

25. D。age可作v. 使用，該句的意思是:由于克隆動(dòng)物早逝，科學(xué)家收集不到它們?nèi)绾巫兝系臄?shù)據(jù)。選D。

26. C。該句的意思是:克隆動(dòng)物小的時(shí)候看起來很健康，很不幸這并不表明能存活長時(shí)間。選C。

27. A。arise 作vi.使用，相當(dāng)于come about; arouse 作vt. 使用。由于某些基因的表達(dá)方式的變異出現(xiàn)了種種反常。選A。

28. C。文章最后一段講述克隆動(dòng)物出現(xiàn)種種問題的原因。選C。

29. B。克隆動(dòng)物出現(xiàn)種種問題的原因是供體基因編程錯(cuò)誤引起的。選B。

30. D。單一供體DNA的缺陷有可能導(dǎo)致克隆坯胎發(fā)育異常。選D。

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