these are unavailable, there are many useful study-skills guides which 1 learners to practice these skills 2 .In all cases it is important to 3 the problem 4 actually starting your studies. It is important to 5 that most students have difficulty in acquiring the language skills 6 in college study. One way of 7 these difficulties is to attend the language and study-skills classes which most institutions provide throughout the 8 year. Another basic 9 is to find a study partner 10 it is possible to identify difficulties, exchange ideas and provide support.Shopping habits in the United States have changed greatly in the last quarter of the 20th century. 11 in the 1900s most American towns and cities had a Main Street. Main Street was always in the heart of a town. This street was 12 on both sides with many 13 businesses. Here, shoppers walked into stores to look at all sorts of merchandise: clothing, furniture, hardware, groceries. 14 ,some shops offered 15 .These shops included drugstores, restaurants, shoe-repair stores, and barber or hairdressing shops. 16 in the 1950s, a change began to 17 .Too many automobiles had crowded into Main Street 18 too few parking places were 19 shoppers. Because the streets were crowded, merchants began to look with interest at the open spaces 20 the city limits. Open space is what their car-driving customers needed. And open space is what they got the first shopping 1. A.denied B.reproduced C.replaced D.ridiculed2. A.means B.mean C.types D.kinds3. A.hardly B.nearly C.certainly D.somehow4. A.personal B.personnel C.manual D.artificial5. A.buy B.sell C.race D.see6. A.quickly B.regularly C.rapidly D.recently7. A.on B.in C.before D.after8. A.raising B.making C.reducing D.improving9. A.unusual B.smallest C.average D.biggest10. A.slower B.equal C.faster D.less11. A.bringing B.obtain C.bought D.purchasing12. A.part B.half C.number D.quality13. A.clearly B.proportionally C.percentage D.suddenly14. A.income B.work C.plans D.debts15. A.used B.spent C.cost D.needed16. A.months B.years C.family D.year17. A.famous B.superior C.fastest D.better18. A.running B.notice C.influence D.affect19. A.then B.as C.so D.which20. A.to B.in C.of D.for答案+解说：1.【答案】C【解析】本句的意思是：“成功或失败在很大程度上取决于你是否能扬长避短。”improvement改进；victory胜利；achievement成果，成就。这三个词都不合题意，只有C.failure“失败”最合适。2.【答案】A【解析】to a great extent是固定短语，意思是“很大程度上”，符合题意。类似的说法还有：to a large extent,to some extent, to an extent, to a certain extent, to that extent, to the extent of。the, some, certain都不能与great extent搭配。3.【答案】B【解析】on与前面的depend构成本句谓语。4.【答案】B【解析】of与名词连用,表示具有某种性质,状态，做表语。置于句首，表示强调。正常语序为：Your attitude is of the utmost importance.5.【答案】A【解析】A person后应当是定语从句,“开始工作的那个人”。6.【答案】C【解析】本句的意思是“如果一个刚刚开始工作的人就深信自己不会喜欢或肯定不适应这项工作，那么阻碍他成功的缺点就暴露出来了。”or后面省略了主语he。ensure保证；certain肯定的(只能用于It做主语的句子里)；surely确实地；sure肯定的。7.【答案】D【解析】in ones belief相信。其它选项都不能与belief搭配。8.【答案】C【解析】capable of doing是固定搭配，意为“能够干什么”。9.【答案】D【解析】attempt用做名词，后接介词at，意为“试图，努力”；如果后面接介词on，表示攻击的意思。其他两项都不能与attempt搭配。10.【答案】C【解析】本句的意思是“具有某一工作的必要技能是一个优势”此处应填句子的主语，故选动名词having。11.【答案】A【解析】这里是一个时间状语从句。因此用when(在时候)。while指“在期间”；since表示“自从”，主句一般用完成时。12.【答案】A【解析】本句的意思是“购物中心是从聚集一些小的店铺开始的”，只有started as有此意。13.【答案】B【解析】本句意为“远离拥挤的市中心”, out of指“在之外”，away from表示距离，“远离”，next to指“靠近，下一个”，near是“近”的意思。14.【答案】A【解析】本句意为“被所吸引”，surprise意为“使惊奇”，delight意为“使喜悦”，enjoy意为“欣赏,喜爱”。15.【答案】D【解析】本句意为“顾客从市区被吸引到城市以外的商业中心”，只有downtown“市区”符合此意。16.【答案】C【解析】本句意为“这些购物中心越来越大的名气反过来导致了更大，设备更好的商店的建成”。distinction声望；fame卓越，好名声；popularity名气很大，知名度很高；liking喜爱，喜好。故选C。17.【答案】B【解析】根据上题解释，in turn应为“依次”的意思，引申为“反过来”。18.【答案】A【解析】在这四个选项中，只有by所组成的时间状语与完成时连用，意为“到为止”,其他三个选项均被排除。19.【答案】C【解析】这里convenience与providing组成短语“提供方便，便利”，符合上下文义。20.【答案】C【解析】介词with在这里的意思是“带有”，本句意为“商业街被变成了带有长椅、喷泉及户外娱乐的风景优美的公园”。