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1、.单项填空1I guess weve already talked about this before but Ill ask you again just _.Aby nature Bin returnCin case Dby chance 解析：选C。句意：“我想我之前已经跟你谈论过这件事，但是以防万一，我再问你一次。”本题考查介词短语。分析四个选项的意思：by nature“天生地”；in return“作为回报，作为交换”；in case“以防万一”；by chance“偶然地”。根据句意可知选C项。2He got to the station early，_ missing his
2、train.Ain case of Binstead ofCfor fear of Din search of解析：选C。句意：“他早早地到达了车站，害怕错过火车。”考查短语辨析。in case of万一，如果；instead of代替；for fear of唯恐，害怕；in search of搜寻。3_ achievement，last weeks ministerial meeting of the WTO here earned a low though not failing grade.AIn terms of BIn case ofCAs a result of DIn face
3、of解析：选A。句意是：“就成就而言，上周的WTO部长级会议虽然没有失败，但是收效甚微。”考查短语辨析。A项“按照，依据”符合题意。B项“如果，万一”；C项“作为结果”；D项“面临”。根据句意应选A项。4She would not give her name，_her abusive husband would find her.Ain case of Binstead ofCfor fear that Din search of解析：选C。句意：她不愿透露自己的姓名，生怕虐待她的丈夫会找到她。in case of万一，如果；instead of代替；for fear that因为怕，生怕；i
4、n search of搜寻。5Elizabeth suffers memory loss_Alzheimers disease.Aas a result of Bon top ofCin front of Din need of解析：选A。句意：伊丽莎白由于患阿尔茨诲默病而丧失了记忆。本题考查介词短语辨析。as a result of意为“因为”，符合题意。on top of意为“在之上”；in front of意为“在前面”；in need of意为“需要”。6A great person is always putting others interests _ his own.Abelow
5、 BaboveCin Don解析：选B。句意：“伟人总是把别人的利益置于自己的利益以上。”本题考查介词辨析。above 表示“在的上方”，指的是一方的位置高出另一方，符合题干意思。A项意思正好和B项相反，故排除；C项意为“在的里面”，D项意为“在的上面”(两物体接触)，此两项皆与题意不符。7Sean has formed the habit of jogging _ the treelined avenue for two hours every day.Abetween BalongCbelow Dwith解析：选B。句意：“肖恩已经养成了每天沿着绿荫大道慢跑两小时的习惯。”考查介词的用法。
6、根据句意，表示“沿着”时，应该用介词 along。8The book was written in 1946，_ the education system has witnessed great changes.Awhen Bduring whichCsince then Dsince when解析：选D。句意：这本书写于1946年，自从那时开始教育制度发生了巨大的变化。本题考查介词后跟定语从句的用法。根据题干可知后一句为定语从句，而定语从句的时态为现在完成时，据此可排除A、B两项；C项的 then 不能作定语从句的引导词，故选D为正确答案。9 _ when has the country b
7、een open to international trade? 1978，I suppose.ASince BInCFrom DAfter解析：选A。句意：“自从何时这个国家对国际贸易开放的？”“我认为是从1978年。”考查介词用法。根据答语可知，问的是“从何时”，故答案应为A。10Most Americans would prefer to keep their problems _ themselves，and solve their problems _ themselves.Ato；by Bby；toCfor；to Din；on解析：选A。第一空是短语keep.to sb.表示“将留
8、给某人”，故选择to；第二空指的是“亲自”，应使用 by oneself。.完形填空The iPhone 4Ss batterydrain(耗电) problem has been a hot issue over the past week.Apparently the locationservices system in iOS 5 is the main cause behind the rapid _1_ of battery power.Apple has_2_the situation and released a beta version of iOS 5.0.1，a futur
9、e update that_3_ the problem.But the iPhone 4S is not the only smartphone_4_ troublesome battery life.As my colleague Jared Newman_5_it，“smartphone batteries stink(发出臭味)”For instance，when the HTC ThunderBolt and the Samsung Charge_6_ first earlier this year，customers complained a(n)_7_battery life s
10、pan when each phone was captured into Verizons 4G network.We wanted to see how the iPhone 4S works _8_with other top smartphones._9_this is just a sample comparison，it isnt the final_10_ in battery life testing.For this article，we used the AT&T version of the iPhone 4S；your experience may_11_dependi
11、ng on your carrier.Our lab analysts _12_a phones battery life during typical use.They test it_13_playing a video file at maximum brightness with audio set at a volume level thats loud _14_ to be heard clearly in an office setting.The video file is a 720p highdefinition animated trailer that we play
12、in a continuous loop until the battery_15_，at which point we record the total battery life using a standardgrade stopwatch(秒表)Our lab analysts _16_ two passes of the test and then_17_an average time in hours and minutes.The Samsung Epic Touch 4G had the_18_ battery life span at 7 hours,22 minutes.Th
13、e TMobile MyTouch 4G Slide_19_ in second，running for 6 hours,33 minutes.Surprisingly，the iPhone 4S came in a close third_20_all of the issues and controversywith a time of 6 hours,14 minutes.1A.defeat BlossCdamage Ddisadvantage解析：选B。由文中首句可知，此处表示“新一代苹果手机的电池电量损耗过快”问题，故选择loss，“失去；损失”之意。而defeat是“失败”，dam
14、age是“损坏；毁坏”，disadvantage是“不利条件，劣势”。2A.avoided BescapedCacknowledged Drejected解析：选C。“苹果公司承认这一情况的存在并发布了新的版本来解决这一问题。”acknowl edge是“确认，承认”之意。avoid是“避免”，escape是“逃跑”，reject是“拒绝；排斥”。3A.realizes BsensesCrecognizes Dcorrects解析：选D。“纠正耗电过快问题的更新”，correct用作动词，“纠正”之意。realize相当于sense是“意识到”，recognize是“认出，识别，承认”。4A.
15、in BofCwith Don解析：选C。with是“有，附带；带有”之意，此处表示“iPhone 4S不是唯一具有短暂电池寿命问题的智能手机”。5A.carries BputsCsets Dsettles解析：选B。put是“表达，表述；理解”之意，“正如我的同事理解的那样”。6A.showed off Btook offCshowed up Dtook up解析：选C。由语境first earlier this year，可知此处表示“当它们首次露面时”，show up是“出现，露面”，符合语境。show off是“炫耀”，take off是“起飞；脱下”，take up是“拿起，从事；继续；接受”。7A.excellent BworstCpoor Dordinary解析：选
