19．Since the popularity of smartphones，people spend lots of time on their phones，either messaging other people，（34）Anews，or playing games．（35）D I think cellphones have made life more （36）C，I don't think spending a lot of time on cellphones is a good idea．
First，spending too much time on cellphones may （37）D cancer．Scientific studies have（38）B that low levels of radiation are given off from the batteries（電池） of cellphones．Not only that，but phones are constantly using microwaves to send and （39）Cinformation．Since many people use their cellphones near their heads，long time exposure could eventually lead to some very（40）Band unhealthy effects．
Secondly，when people spend too much time on their cellphones，they（41）Con the things going on around them．This has been proven over and over again by （42）Awho use their phones while in their cars．This has been such a major cause of car（43）A，because drivers are too distracted by their phones to（44）Bthe road，that most states in the U．S．have banned the （45）Aof cellphones while driving．There are also other cases showing how using cellphones can（46）D people to miss out on the things around them．For example，I went hiking with a friend a few weeks ago．She was so（47）Bto her cellphone the whole time that she missed out on all the （48）Cthings we saw on the mountains，and didn't get a（49）D to experience the same awe（敬畏） of nature as I was able to experience．
Lastly，spending too much time on cellphones makes people forget how to have normal conversations．（50）B，when people use text messaging，they use a form of shorthand known as"Netspeak"to （51）Con the size of messages and make typing them on small keyboards fast and easy．（52）D this，many people forget how to spell and use grammar（53）A．

34．A．readingB．learningC．spreadingD．reporting
35．A．SinceB．BecauseC．UnlessD．While
36．A．interestingB．meaningfulC．convenientD．enjoyable
37．A．a(chǎn)dd toB．result fromC．turn toD．lead to
38．A．raisedB．provenC．reviewedD．examined
39．A．seekB．storeC．receiveD．collect
40．A．powerfulB．harmfulC．importantD．beneficial
41．A．break inB．fall backC．miss outD．catch up
42．A．driversB．visitorsC．passengersD．players
43．A．a(chǎn)ccidentsB．tradesC．crimesD．losses
44．A．pull out intoB．pay attention toC．get acrossD．go along
45．A．useB．callC．a(chǎn)nswerD．message
46．A．commandB．forceC．a(chǎn)llowD．cause
47．A．a(chǎn)ccountedB．a(chǎn)ttractedC．a(chǎn)ttachedD．a(chǎn)ffected
48．A．terribleB．strangeC．beautifulD．funny
49．A．momentB．mindC．wayD．chance
50．A．ThereforeB．BesidesC．HoweverD．Instead
51．A．countB．workC．saveD．mark
52．A．In case ofB．According toC．For fear ofD．As a result of
53．A．correctlyB．carefullyC．regularlyD．normally

分析 本文是議論文．文章主要議論了花太多時間在手機上給人們帶來的危害．

解答 34-38 ADCDB  39-43 CBCAA    44-48 BADBC 49-53 DBCDA
34．A．動詞辨析．由句意可推知，人們花很多時間在手機上，要么發(fā)信息給別人，要么"閱讀（reading）"新聞，或者玩游戲．故選A．
35．D．連詞辨析．前后句之間是讓步轉(zhuǎn)折關(guān)系，故用"盡管（While）"．故選D．
36．C．動詞辨析．由句意可推知，手機讓生活變得更"方便（convenient）"．故選C．
37．D．動詞短語辨析．由下文中的long time exposure could eventually lead to…unhealthy effects可知，花過多的時間在手機上可能會"導(dǎo)致（lead to）"癌癥．故選D．
38．B．動詞辨析．科學(xué)研究已經(jīng)"證明（proven）"手機電池會有少量的輻射．故選B．
39．C．動詞辨析．由上文中的using microwaves to send可知，手機在一直用微波發(fā)送和"接收（receive）"信息．故選C．
40．B．形容詞辨析．由下文中的unhealthy effects可知，長時間使用手機會導(dǎo)致一些"有害的（harmful）"和不健康的后果．故選B．
41．C．動詞短語辨析．由下文中的she missed out on…we saw on the mountains可知，當(dāng)人們花太多時間在手機上時，他們會"錯過（miss out）"周圍發(fā)生的事情．故選C．
42．A．名詞辨析．由下文中的in their cars可知，此處指"司機（drivers）"．故選A．
43．A．名詞辨析．開車時使用手機是造成"車禍（accidents）"的主要原因．故選A．
44．B．動詞短語辨析．由上文中的drivers are too distracted by their phones可知，司機太專注于自己的手機而沒有"注意（pay attention to）"道路上的情況．故選B．
45．A．動詞辨析．由上文中的who use their phones while in their cars可知，美國的大多數(shù)州已經(jīng)禁止在開車時"使用（use）"手機．故選A．
46．D．動詞辨析．由句意可推知，使用手機"導(dǎo)致（cause）"人們錯過周圍的事物．故選D．
47．B．動詞辨析．由句意可推知，她被她的手機深深"吸引（attracted）"，故選B．
48．C．形容詞辨析．她被她的手機深深吸引，所以錯過了山上"美麗的（beautiful）"風(fēng)景．故選C．
49．D．名詞辨析．她沒有"機會（chance）"體驗到"我"所體驗到的對大自然的敬畏．故選D．
50．B．連詞辨析．上下文之間是并列關(guān)系，故用"此外（Besides）"．故選B．
51．C．動詞辨析．由上文中的a form of shorthand可知，他們使用簡寫來"節(jié)�。╯ave）"信息的使用空間．故選C．
52．D．短語辨析．本句是許多人忘記了正確拼寫和使用語法的原因，故選D．
53．A．副詞辨析．由句意可推知，"很多人忘記了如何"正確地（correctly）"拼寫和使用語法．故選A．

點評 題目涉及多道細(xì)節(jié)理解題，做題時結(jié)合原文和題目有針對性的找出相關(guān)語句進(jìn)行仔細(xì)分析，結(jié)合選項選出正確答案．推理判斷題也是要在抓住關(guān)鍵句子的基礎(chǔ)上合理的分析才能得出正確答案，切忌胡亂猜測，一定要做到有理有據(jù)．

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