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1、溫故而知新，下筆如有神。 最近年12月大學英語三級A專題測練及答案 (總分：100.00，做題時間：120分鐘) 一、Part Ⅰ Listening Comprehension(總題數(shù)：0，分數(shù)：0.00) 二、Section A(總題數(shù)：1，分數(shù)：5.00) （分數(shù)：5.00） A.The brand image.?√ B.The marketing strategy. C.The sales plan. D.The company culture. 解析：[聽力原文] W: George, do you have any idea to improve our b

2、rand image? M: Oh, I"ve just talked about the brand image with Susan. Q: What are the two speakers talking about? [解析] 細節(jié)題 問題問的是對話雙方在討論什么。根據(jù)對話內(nèi)容可知，雙方主要討論的是“brand image”，故選A。 A.Telephone bills. B.Online shopping. C.Telephone banking.?√ D.Credit cards. 解析：[聽力原文] M: Hello, Customer Ser

3、vice. How can I help you? W: Yes, I"d like some information on Your telephone banking service. Q: What is the woman asking about? [解析] 細節(jié)題 問題問的是女士咨詢的問題。根據(jù)對話內(nèi)容可知，女士詢問的是“telephone banking service”，故選C。 A.On the third floor. B.On the fifth floor.?√ C.On the sixth floor. D.On the eighth fl

4、oor. 解析：[聽力原文] M: Excuse me, How can I get to the manager"s office? W: Take the lift to the fifth floor. It"s the third office on the left. Q: Where is the manager"s office? [解析] 地點題 問題問的是經(jīng)理辦公室的位置。根據(jù)選項可知，問的是經(jīng)理辦公室在哪個樓層，由女士的回答可知，在5層，故選B。 A.She doesn"t like the new house. B.She can"t hel

5、p the man.?√ C.She will go to the concert. D.She will be away on business. 解析：[聽力原文] M: Would you help me to move into my new house this Saturday? W: I"m really sorry. I have an appointment with my doctor. Q: What does the woman mean? [解析] 推理題 問題問的是女士是什么意思。根據(jù)對話可知，男士想要女士幫忙搬家，但女士說自己要去看醫(yī)

6、生，所以她無法幫助男士。故選B。 A.Write a report. B.Book a flight. C.Attend a meeting. D.Meet an engineer.?√ 解析：[聽力原文] W: Could you go to the airport to meet Mr. Smith, the new engineer? M: Certainly. What"s the flight number? Q: What does the woman ask the man to do? [解析] 細節(jié)題 問題問的是女士讓男士做什么。對話開頭，女

7、士問男士能否去機場接見下新工程師——史密斯先生，男士答應后，又提到了航班號，故選D。 三、Section B(總題數(shù)：2，分數(shù)：5.00) （分數(shù)：3.00） A.Selling sports cars. B.Working in a news agency.?√ C.Doing logistics. D.Writing computer programs. 解析：[聽力原文] M: There are many jobs offered in this career fair. W: Yes. What job do you prefer? M: Working i

8、n a news agency. I"d love to be a sports reporter. W: Are you joking? A sports reporter? It seems so tiring. M: And what would you like to do? W: I want to work as a fashion designer. M: Why? W: It"s more creative than a sports reporter． M: Yes. But sports reporting is more exciting. W

9、: I hope we both can find an ideal job at this fair. What job does the man prefer to do? [解析] 細節(jié)題 問題問的是男士想做什么工作。由對話可知，女士問男士想做什么工作，男士說想在新聞機構(gòu)就業(yè)，做體育記者，故選B。 A.Interesting. B.Challenging. C.Tiring.?√ D.Rewarding. 解析：[聽力原文] What does the woman think of sports reporting? [解析] 態(tài)度題 問題問

10、的是女士對體育報道的看法。由對話可知，女士在得知男士的職業(yè)意向后，非常詫異，并說這個工作很累，故選C。 A.A fashion designer.?√ B.A bank clerk. C.A TV host. D.A sales manager. 解析：[聽力原文] What does the woman prefer to be? [解析] 細節(jié)題 問題問的是女士想做什么工作。由對話可知，女士想做時裝設計師，故選A。 （分數(shù)：2.00） A.His water bill. B.His gas bill. C.His phone bill. D.His el

11、ectricity bill.?√ 解析：[聽力原文] W: Hello. Customer Service. Can I help you? M: Yes. There seems to be something wrong with my electricity bill. W: I"m sorry. Can you tell me your account number? M: Certainly. It"s 66767. W: 66767, Mr. Smith? M: Yes. W: What"s the problem? M: I think I"v

12、e been charged too much last month. W: Why do you think so? M: We have been away on vacation for two weeks. But the bill is doubled that of the previous month． W: Let me have a check. And I"ll see what I can do. What does the man complain about? [解析] 細節(jié)題 問題問的是男士在投訴什么。由對話可知，男士覺得自己家的電

13、費賬單有問題，故選D。 A.He has already paid the bill. B.He has moved to a new house. C.He has been away for two weeks.?√ D.He has been abroad for the whole month. 解析：[聽力原文] Why does the man think he has been charged too much? [解析] 原因題 問題問的是男士為什么覺得自己被多收取了費用。由對話可知，男士說外出了兩周，電費比上個月多了1倍，故選C。 四、Sectio

14、n C(總題數(shù)：1，分數(shù)：5.00) Good afternoon passengers. This is the pre-boarding announcement for flight 89B to Moscow. We are now 1 those passengers with small children, and any passengers requiring special assistance, to begin boarding at this time. Please have your 2 and identification ready. Regular boar

15、ding will begin in approximately ten minutes time. Thank you. ... This is the final boarding call for passengers Eric and Fred Collins booked on flight 89B to Moscow. Please proceed to 3 immediately. The final checks are being 4 and the captain will order for the doors of the aircraft to close i

16、n approximately five minutes time. I 5 . This is the final boarding call for Eric and Fred Collins. Thank you. Good afternoon passengers. This is the pre-boarding announcement for flight 89B to Moscow. We are now 1 those passengers with small children, and any passengers requiring special assistanc

17、e, to begin boarding at this time. Please have your 2 and identification ready. Regular boarding will begin in approximately ten minutes time. Thank you. ... This is the final boarding call for passengers Eric and Fred Collins booked on flight 89B to Moscow. Please proceed to 3 immediately. The

18、final checks are being 4 and the captain will order for the doors of the aircraft to close in approximately five minutes time. I 5 . This is the final boarding call for Eric and Fred Collins. Thank you. （分數(shù)：5.00） 填空項1:__________________?（正確答案：inviting） 解析： inviting [聽力原文] Good afternoon passeng

19、ers. This is the pre-boarding announcement for flight 89B to Moscow. We are now inviting those passengers with small children, and any passengers requiring special assistance, to begin boarding at this time. Please have your boarding pass and identification ready. Regular boarding will begin in appr

20、oximately ten minutes time. Thank you. This is the final boarding call for passengers Eric and Fred Collins booked on flight 89B to Moscow. Please proceed to Gate 3 immediately. The final checks are being completed and the captain will order for the doors of the aircraft to close in approximately

21、five minutes time．I repeat . This is the final boarding call for Erie and Fred Collins. Thank you. 解析： boarding pass 解析： Gate 3 解析： completed 解析： repeat 五、Section D (總題數(shù)：1，分數(shù)：5.00) （分數(shù)：5.00） (1). What is the purpose of the party? To 1 to Mr. Smith. （分數(shù)：1.00） 填空項1:__________________?（正確答案：s

22、ay goodbye） 解析： say goodbye [聽力原文] Today we are here to hold a party to say goodbye to Mr. Smith. We all know that he is going to leave us soon and he will become a manager of New York"s branch of the company. I am very happy that he has been promoted. Mr. Smith has been working with us for the p

23、ast five years. His working ability and kindness have left HS a good impression. I think his absence from our office will be a great loss for us. However, it is lucky for the staff in New York"s office to have Mr. Smith as their manager. We will be sure to miss you very much, Mr. Smith. We wish you

24、the very best luck in your future work. And we also hope to keep in touch with you regularly. What is the purpose of the party? [解析] 細節(jié)題 題干問的是舉辦聚會的目的是什么。 根據(jù)原文中的“Today we are here to hold a party to say goodbye to Mr. Smith.”可知，目的是為了給史密斯送別。故填入say goodbye。 (2). What new position is Mr. Sm

25、ith going to take? The 1 of New York"s branch. （分數(shù)：1.00） 填空項1:__________________?（正確答案：manager） 解析： manager [聽力原文] What new position is Mr. Smith going to take? [解析] 細節(jié)題 題干問的是史密斯的新職位是什么。 根據(jù)原文中的“he will become a manager of New York"s branch of the company.”可知，史密斯將要當選經(jīng)理。故填入manager。 (3).

26、 How long has Mr. Smith been working in the present office? For 1. （分數(shù)：1.00） 填空項1:__________________?（正確答案：five years） 解析： five years [聽力原文] How long has Mr. Smith been working in the present office? [解析] 細節(jié)題 題干問的是史密斯先生在現(xiàn)在的公司工作了多久。根據(jù)原文中的“Mr. Smith has been working with us for the past fi

27、ve years.”可知，史密斯在公司已經(jīng)工作5年了。故填入five years。 (4). What has impressed the speaker and his colleagues most? Mr. Smith"s 1 and kindness. （分數(shù)：1.00） 填空項1:__________________?（正確答案：working ability） 解析： working ability [聽力原文] What has impressed the speaker and his colleagues most? [解析] 細節(jié)題 題干問的是說話

28、人和他的同事對史密斯先生的印象是什么。根據(jù)原文中的“His working ability and kindness have left us a good impression.”可知，史密斯的工作能力和善良給大家留下了好印象。故填入working ability。 (5). What does the speaker say at the end of the speech? He hopes to 1 with Mr. Smith regularly. （分數(shù)：1.00） 填空項1:__________________?（正確答案：keep in touch） 解析： keep

29、 in touch [聽力原文] What does the speaker say at the end of the speech? [解析] 細節(jié)題 題干問的是說話人在最后說了什么。 根據(jù)原文中的“And we also hope to keep in touch with you regularly.”可知，說話人想要與史密斯經(jīng)常保持聯(lián)系。故填入keep in touch。 六、Part Ⅱ Structure(總題數(shù)：0，分數(shù)：0.00) 七、Section A(總題數(shù)：10，分數(shù)：10.00) 1.Do you think the new engineer

30、 can help me ______ my operating skills? （分數(shù)：1.00） A.improves B.improved C.improve?√ D.has improved 解析：[考點] 固定搭配 [解析] help sb. do sth.是固定搭配，意為“幫助某人做某事”，故選C。 動詞之后的不定式結(jié)構(gòu)有帶to和不帶to兩種，需要考生牢記動詞的固定搭配。 2.This store doesn"t sell furniture, but the one across the street ______. （分數(shù)：1.00） A.is B.

31、will be C.do D.does?√ 解析：[考點] 主謂一致 [解析] 從前半句的謂語動詞可以判定句子為一般現(xiàn)在時態(tài)，后半句中的“the one”指代的是街對面的“store”，謂語部分應為“does sell”，但是前半句中已有“sell”，為避免重復被省略。故選D。 首先要搞清楚“the one”所指代的對象，其次根據(jù)已有信息判斷句子的時態(tài)也很重要。 3.Do you have any idea about how many companies ______ in the office building? （分數(shù)：1.00） A.there are?√ B.a

32、re there C.there is D.is there 解析：[考點] 主謂倒裝 [解析] 此句為一般疑問句，其中“how many”引導詢問數(shù)量的從句。從句中的主謂不需要倒裝，需用陳述句語序表述。又因為從句主語“companies”為復數(shù)，故選A。 一般疑問句的主謂需要倒裝，但是從句的主謂順序不變，用陳述句的語序表達即可。 4.The presentation of your product is so important ______ it often determines whether a customer buys from you. （分數(shù)：1.00） A

33、.than B.that?√ C.unless D.if 解析：[考點] 固定搭配 [解析] so...that...是固定搭配，意為“如此...以至于”，故選B。 so...that...表示“如此...以至于”，屬于固定搭配，需要考生牢記。 5.If I ______ they were on sale online, I wouldn"t have bought the traveling bags in this store. （分數(shù)：1.00） A.know B.knew C.had known?√ D.have known 解析：[考點] 虛擬語氣

34、 [解析] 本句使用了與過去事實相反的虛擬語氣，主句謂語為“wouldn"t have done”，意為“不該做卻做了某事”，從句謂語應為“had done”，故選C。 if引導的條件從句常使用虛擬語氣，分別表達與現(xiàn)在事實、過去事實及將來事實相反的內(nèi)容。表達與過去事實相反的主句謂語一般使用“should/would/could/might+have done”，從句謂語使用“had done”。 6.You need to consider either a paid or volunteer bridge job while ______ full-time work. （分數(shù)：1.

35、00） A.to seek B.sought C.seek D.seeking?√ 解析：[考點] while的用法 [解析] while表示“當...時候”，表示與主句的動作同時進行。while引導的狀語部分的動作發(fā)出者與主句的主語一致，省略了謂語部分的表述，使用現(xiàn)在分詞，故選D。 狀語部分的非謂語動詞可以使用現(xiàn)在分詞和過去分詞。如果主句的主語是動作的發(fā)出者則使用現(xiàn)在分詞。如果是動作的受動者，則使用過去分詞。 7.My boss refused to give me a pay rise, no matter ______ hard I worked. （分數(shù)：1.00

36、） A.how?√ B.where C.what D.when 解析：[考點] 讓步狀語從句 [解析] “no matter”意為“無論，不管”，可以引導表示讓步的狀語從句?？崭窈鬄椤癶ard”，可見為表示方式，故選A。 “no matter”可以跟“how/what/when”，表示“無論...方式、什么事情、什么時間”。 8.Since the beginning of 2013, these regulations ______ in most workplaces across the country. （分數(shù)：1.00） A.will be introduce

37、d B.are introduced C.have been introduced?√ D.were introduced 解析：[考點] 動詞時態(tài) [解析] 時間狀語由since引導，主句謂語使用完成時態(tài)。另外主句的主語為“these regulations”，謂語用被動語態(tài)。故選C。 此類題型需要考生格外注意時態(tài)與語態(tài)的結(jié)合。 9.The government believes that local people will welcome the decision, ______ will bring more job opportunities to the city.

38、 （分數(shù)：1.00） A.that B.where C.what D.which?√ 解析：[考點] 非限定性定語從句 [解析] 從句是“the decision”的具體內(nèi)容，空格之前有逗號，意味著空格處引導的是非限定性的定語從句。故選D。 that和which都可以引導定語從句，但是只有which可以引導非限定性定語從句。 10.You are likely ______ the job offer as you have some work experience in this business. （分數(shù)：1.00） A.getting B.to get?√

39、C.get D.got 解析：[考點] 固定搭配 [解析] be likely to do sth.是固定搭配，意為“有可能做某事”，故選B。 八、Section B(總題數(shù)：5，分數(shù)：5.00) 11.A (detail) 1 list of all patients was kept by the nursing staff in the hospital. （分數(shù)：1.00） 解析：detailed [考點] 詞性轉(zhuǎn)換 [解析] 空格處為形容詞，修飾之后的名詞“l(fā)ist”。所給單詞的形容詞形式為“detailed”。 12.Our clients (surpri

40、se) 1 by the level of support we can offer in such an efficient way. （分數(shù)：1.00） 解析：are surprised [考點] 被動語態(tài) [解析] 空格處為謂語成分。主語是公司提供服務的對象，因此謂語部分使用被動語態(tài)。又根據(jù)句中的時態(tài)，謂語使用一般現(xiàn)在時態(tài)。 13.Their hard work was beginning to pay off, and they believed that the future would be (amazing) 1 bright. （分數(shù)：1.00） 解析：a

41、mazingly [考點] 詞性轉(zhuǎn)換 [解析] 空格處需要副詞來修飾之后的形容詞，所給單詞為形容詞，直接加“l(fā)y”即可。 14.The (announce) 1 of the decision has sent the company"s shares going up as much as 10 percent. （分數(shù)：1.00） 解析：announcement [考點] 詞性轉(zhuǎn)換 [解析] 空格處需要名詞，將所給的動詞直接加上后綴“ment”即為名詞。 15.Buying insurance through your business can be (cheap) 1

42、 than buying an individual policy for yourself. （分數(shù)：1.00） 解析：cheaper [考點] 形容詞比較級 [解析] 句子中有表示比較的介詞“than”，空格處應填入比較級的形式，故填入cheap的比較級形式cheaper。 九、Part Ⅲ Reading Comprehension(總題數(shù)：0，分數(shù)：0.00) 十、Task 1 (總題數(shù)：1，分數(shù)：5.00) The holidays are the most wasteful time of the year. The amount of waste produce

43、d increases by more than 25% from Thanksgiving to New Year"s Day. Waste from shopping bags alone amounts to four million tons in the U. S. and 28 billion pounds of food is wasted annually. That"s about 100 pounds per person. Now for the good news. You can simplify the holidays , do something about t

44、he amount of waste. Most issues surrounding food safety and food waste involve leftovers (剩飯). Plan ahead for the number of people you will be feeding, including a day or two of leftovers, but don"t try to keep food too long. Preparing the right amount of food will keep everyone feeling well and eli

45、minate the need to throw away extra food this time of year. Plan thoughtfully when giving gifts. Waste-free gifts of time and talent are appreciated. Tickets to concerts, the zoo, movies or sporting events make fun gifts and don"t come with any waste. Wrapping paper can be recycled as long as it

46、 isn"t the metal variety. Better yet, reduce waste by wrapping gifts in shopping bags or other reusable items, to save the wrapping part of the package.（分數(shù)：5.00） (1).What is said about holidays according to the passage?（分數(shù)：1.00） A.28 billion pounds of food is wasted. B.They are the busiest time o

47、f the year. C.They are the most wasteful time of the year.?√ D.4 million tons of shopping bags are consumed. 解析：[解析] 推理題 由本文首段第一句“The holidays are the most wasteful time of the year.”可以得知，本文作者認為一年中浪費最嚴重的時節(jié)是假期。故選C。 A項是說每年，不單指假期，B項在文中并未提及，D項與本文陳述有出入。 (2).What does the writer mean by saying "si

48、mplify the holidays" ( Para. 1)?（分數(shù)：1.00） A.Spending the holidays in a simple way.?√ B.Preparing enough food for the holidays. C.Making the holidays as comfortable as possible. D.Saving as much money as possible for the holidays. 解析：[解析] 語義題 simplify意為“簡單化，使簡易”。本文的段首以兩項數(shù)據(jù)說明人們在節(jié)假日期間造成了巨大的浪費。之后

49、提出了各項建議，倡導人們節(jié)約資源，避免浪費。故選A。 B項與本文陳述內(nèi)容相反，C、D項文中未提及。 (3).According to the passage, leftovers are most likely to cause issues of ______.（分數(shù)：1.00） A.food price B.food delivery C.food safety and waste?√ D.food quality and cooking 解析：[解析] 細節(jié)題 由本文第一段倒數(shù)第三句“Most issues surrounding food safety and fo

50、od waste involve leftovers.”可以得知，大多數(shù)食品安全和浪費和剩飯菜有關。故選C。 A、B、D三項在文中都未提及。 (4).According to the last paragraph, you are advised ______.（分數(shù)：1.00） A.not to use shopping bags for gifts B.to use reusable items to wrap gifts?√ C.not to use anything made of plastics D.to use packaging boxes made of woo

51、d 解析：[解析] 細節(jié)題 由最后一段最后一句“Better yet, reduce waste by wrapping gifts in shopping bags or other reusable items, to save the wrapping part of the package.”可以得知，本文作者建議使用可以再循環(huán)使用的材料來包裝禮物。故選B。 A項過于絕對，C、D項在文中并未提及。 (5).The passage is mainly about ______.（分數(shù)：1.00） A.when to buy Thanksgiving gifts B.how

52、 to reduce wastes in holidays?√ C.how to spend New Year" s Day D.when to handle leftover food 解析：[解析] 主旨題 根據(jù)本文第一句“The holidays are the most wasteful time of the year.”以及之后的內(nèi)容可以得知，本文作者主要討論的是如何在節(jié)假日期間避免大量的資源浪費。故選B。 A、C、D三項是干擾項，不是本文主旨。 十一、Task 2 (總題數(shù)：1，分數(shù)：5.00) In a Presidents Club, you could a

53、ctually get some work done at the airport if you wanted to. Check your voice mail, write a report, hold a meeting, or take some time to relax between flights. Whether your objective is to get some work done or simply escape the crowds in the airport, our experienced Presidents Club staff will ensure

54、 that your needs are met from the moment you enter any of our 26 Clubrooms. From the Presidents Club, our agents can even check you in for your flight and confirm your seat assignment. You can also visit our 40 lounges worldwide, including all domestic Northwest WorldClubs locations. Our President

55、s Club lounges are newer and better than ever, which means there has never been a better time, or better reason, to join. Whether you travel alone or with others, the unique atmosphere of the Presidents Club is the perfect place to enjoy a little privacy, get work done, or simply relax. As a Presi

56、dents Club member, you may entertain two friends or business associates, or your immediate family, anytime you visit a Presidents Club. To make the Presidents Club even more comfortable, we recently updated many of our Clubrooms. Our Clubrooms" features include: · A variety of complimentary (免費享

57、用的) wine and beer selections · Bar areas designed with unique local themes (主題) · Complimentary soft drinks, juice, coffee, and light snacks · Television viewing areas where you and your family can watch the latest movies or shows.（分數(shù)：5.00） (1).In the Clubrooms, the members of the Presidents

58、Club can ______.（分數(shù)：1.00） A.hold a party B.deliver a lecture C.give a performance D.have some work done?√ 解析：[解析] 細節(jié)題 根據(jù)第一段第三句“Whether your objective is to get some work done or simply escape the crowds in the airport, our experienced Presidents Club staff will ensure that your needs are met

59、from the moment you enter any of our 26 Clubrooms.”可知，在俱樂部里可以處理公務或者單純放松享受。故選D。 A、B、C三項是干擾項，均未在本文中出現(xiàn)。 (2).According to the first paragraph, the Club staff can ______.（分數(shù)：1.00） A.help club members confirm seats on flights?√ B.drive club members to the airport C.book a hotel room for club members

60、 D.tell club members how to use the clubrooms 解析：[解析] 推理題 根據(jù)第一段第四句“From the Presidents Club, our agents can even check you in for your flight and confirm your seat assignment.”可以得知，俱樂部可以幫助會員辦理登機手續(xù)或確認座位安排等事務。故選A。 B、C、D三項是干擾項，均未在本文中出現(xiàn)。 (3).The writer believes now is the best time to join the cl

61、ub because ______.（分數(shù)：1.00） A.the staff members are all young B.the members can enjoy more benefits C.the membership fees are lower than ever before D.the lounges are newer and better than ever before?√ 解析：[解析] 細節(jié)題 根據(jù)本文第二段“Our Presidents Club lounges aye newer and better than ever, which mean

62、s there has never been a better time, or better reason, to join.”可以得知，加入俱樂部的最佳時間就是現(xiàn)在，因為俱樂部的休息室剛做了全新裝配。故選D。 A、B、C三項是干擾項，均未在本文中出現(xiàn)。 (4).According to the passage, in the Clubrooms you can ______.（分數(shù)：1.00） A.enjoy free wine, beer and soft drinks?√ B.make long-distance calls free of charge C.get dis

63、count coupons for shopping D.meet with local artists 解析：[解析] 推理題 根據(jù)本文最后一部分的列舉內(nèi)容“A variety of complimentary wine and beer selections和Complimentary soft drinks, juice, coffee, and light snacks.”可以得知，會員在俱樂部可以免費享用酒水飲料。故選A。 B、C、D三項是干擾項，長途電話費用，優(yōu)惠券以及當?shù)厮囆g家等信息均未在本文中出現(xiàn)。 (5).What is the passage mainly a

64、bout?（分數(shù)：1.00） A.The obligations of the Presidents Club members. B.The process of joining the Presidents Club. C.The benefits for the Presidents Club members.?√ D.The facilities in the Presidents Clubrooms. 解析：[解析] 主旨題 根據(jù)本文陳述可以得知，本文主要是宣傳總統(tǒng)俱樂部會員可以享受的服務項目。故選C。 A、B、D三項是干擾項，義務、加入過程以及設備信息均未在本文中出

65、現(xiàn)。 十二、Task 3 (總題數(shù)：1，分數(shù)：5.00) SpeedFixTool Why not try your SpeedFixTool? It will show you any errors that are slowing your system down, and once they"re fixed you may be surprised at just how fast your computer really can be. That"s why more and more people are using SpeedFixTool instead of spe

66、nding $150 per hour for PC repair or $1,000 for a new computer. Right now you can download the diagnostic(診斷的)tool for free by clicking here . If you like what you see, you" 11 have the choice to upgrade to the top version—which at $ 29.97 is a bargain compared to the alternatives. You should keep the software installed and run a click-through about every 30 days to maintain top performance. Many users don"t realize how much faster their machine could be until after they run the repair tool.