高中英语冠词专项复习练习及答案

这是一份高中英语冠词专项复习练习及答案，共18页。
动词时态专项复习：冠词
第一部分:1-50 专项练习 第二部分:51-100全面解析

1．Jane's grandmother has wanted to write ______ children's book for many years, but one thing or another always got in ________ way.
A．a, / B．a, the C．the, the D．the, a
2．—Would you mind giving your advice on how to improve our business management?
—If you make _____ most of the equipment, there will be _____ rise in production.
A．the; a B．/; / C．/; a D．the; /
3．You really ought to make most of the opportunity, because you won't get second chance.
A．the; a B．/; a C．/; the D．the; the
4．India attained independence in 1947, after long struggle.
A．不填; a B．the; a C．an; 不填 D．an; the
5．As _______ monitor of our class, Jason has _______ great responsibility to get the class to work together as a team.
A．a； the B．不填； a C．a； 不填 D．a； a
6．Usually we are at ________ on ________.
A．the church; Sunday B．church; Sundays
C．the church; Sundays D．church; a Sunday
7．We were shocked to hear the news that ________ two Chinese engineers were shot to death in Pakistan. Worse still, ________ one died in hospital afterwards.
A．/; a third B．the; the third
C．the; a third D．/; the third
8．Take your time it's just ________ short distance from here to ________ restaurant.
A．不填；the B．不填；a C．the; a D．a; the
9．— Of the two bags, which one do you prefer?
— __________bigger one. It's_________ most beautiful one, I think.
A．The; a B．The; the C．A; / D．A; the
10．—It's said John will be in a job paying over $60,000 year.
—Right, he will also get paid by week.
A．the; the B．a; the C．the; a D．a; a
11．—Would you mind giving some advice on how to improve our study?
—If you make______most of the time,there will be______rise in your study efficiency.
A．/; / B．the; a C．/; a D．the; /
12．Hunger is _____ number one global health risk, so the WFP has organized a lot of programmes, which helps people most at ________risk.
A．the； / B．a； / C．the；the D．a；a
13．Confucius Temple, world cultural heritage, is about 65 kilometres south of Mount Tai.
A．the; the B．a; the C．the;不填 D．a;不填
14．Without _____thorough understanding of China's specific conditions, you can't have ______ say over the only-child policy.
A．a; the B．the; a C．a; a; D．the; the
15．When you visit a museum you must ask for _______ permission before taking _______ photographs inside it.
A．/; / B．a; the C．a; / D．the; the
16．When armed with ______ awareness of what you truly value, you are in ______ excellent position to pick a career you will find rewarding.
A．an; an B．the; an C．an; the D．the; the
17．Why don't you go for ________walk？It'll give you ________appetite for your lunch.
A．a；/ B．a；an C．/；the D．/；an
18．A study shows that eating one egg _______ day does not appear to raise ________ risk of heart attack.
A．the; a B．a; a C．a; / D．a; the
19．While he was investigating ways to improve the telescope, Newton made ________ discovery which completely changed _________ man's understanding of color.
A．the; a B．a ; the C．a; 不填 D．不填；the
20．China is seeing ______ growing trend in the number of people owning pets and ______ recent survey finds that one in 13 Chinese now keep animals.
A．the; a B．a; the C．a; a D．the; the
21．American films always have ______ edge on foreign films at ______ Oscars, regardless of how popular a foreign film might be.
A．an; the B．the; the C．an; / D．the; /
22．We urge ________ extreme caution in ________ use of this medicine, which has not been officially approved yet.
A．an; the B．an; 不填 C．不填; the D．不填; 不填
23．Some researchers point out that _________ daydreaming is _________ means of relaxation.
A．the; a B．/; the C．a; the D．/; a
24．India attained ________ independence in 1947, after ________ long struggle.
A．不填; a B．the; a C．an; 不填 D．an; the
25．It is well-known that ____ year 2020 saw many developments in ____ science and technology, with those in the field of space science being particularly notable.
A．/; / B．/; the C．the; the D．the; /
26．He used to be ________ teacher but later he turned ________ writer.
A．a; a B．the; / C．a; a D．a;/
27．Later ________ word came that Dolly ________ sheep had become seriously ill.
A．a; a B．the; the C．/; the D．/; /
28．— Hello, could I speak to Mr. Smith?
— Sorry, wrong number. There isn't______ Mr. Smith here.
A．不填 B．a C．the D．one
29．______Jixi today is more beautiful now. Mr. Jackson said he would visit it ______third time.
A．The; / B．The; the C．/a D．The; a
30．We can have_______ bluer sky if we create________ less polluted world.
A．a; a B．a; the C．the; a D．the; the
31．It doesn't make ______ difference whether he is in ______ favor of or against the plan.
A．a; a B．a; / C．/; a D．/; /
32．—Do you like playing football, Mike?
— No, I don't. But I like playing _________ basketball.
A．a B．an C．the D．/
33．I don't know exactly what they are working on, but I've got rough idea offield of their research.
A．the, a B．不填, the C．the, 不填 D．a, the
34．We were sitting quietly. All of sudden, a piece of classical music sounded, which gave life to the whole stadium.
A．the; / B．the; the C．a; / D．a; the
35．Although he knew _______ little about ________ large amount of work done in the field, he succeeded where more well-informed experiments failed.
A．the; the B．the; a C．a; 不填 D．不填; the
36．—Have you seen ________ pen? I left it here this morning.
—Is it ________ black one? I think I saw it somewhere.
A．a; the B．the; the C．the; a D．a; a
37．—What ________ fun it is to play with computer games!
—Don't you think it's ________ waste of time?
A．a; a B．/; a C．/; the D．the; the
38．The book, ________ to tell people how to learn English as ________ second language, is very helpful for beginners.
A．intended; a B．intending; a C．intended; the D．intending; the
39．Kevin studied very hard last term and as _____ result, he made _____ great progress.
A．a; / B．/; a C．a; a D．/; /
40．This book tells _________ life story of John Smith, who left _________ school and worked for a newspaper at the age of 18.
A．the; the B．a; the C．the; / D．a; /
41．He had wanted to write ____children's book for many years, but one thing or another always got in _________ way.
A．a; / B．the; the C．/; the D．a; the
42．The firm was badly in need of a manager who has good knowledge of French.
A．a;/ B．the;a C．/;a D．/;the
43．France is a main destination for U.S. travelers, _______ second only to the United Kingdom, according to _______ Commerce Department report.
A．不填; a B．不填; the C．a; a D．the; the
44．—Did you make________breakthrough in the project?
—No.On________contrary，we stopped because of lack of money.
A．the；/ B．the；the C．a；the D．a；/
45．What on ____ earth are you doing under such ___ burning sun? Go indoors.
A．the; the B．an; a C．/; / D．/; a
46．The Chinese women's volleyball team holds very special place in nation's heart.
A．a; / B．the; the C．a; the D．the; a
47．Now scientists are doing their best to make _______ breakthrough in cancer research.
A．the B．/ C．a D．one
48．As ______ consequence of all his hard training, Paul was able to take_____ lead in the race.
A．the, a B．a, the C．/, / D．a, a
49．The police have ________ power to arrest bad people by ________ law.
A．the; the B．/; / C．the; / D．/; the
50．—Her concert was ________ big success last night.
—I think it surely makes ________ difference for a new talent.
A．/; / B．a; a C．a; the D．a; /

答案解析部分

1．B
2．A
3．A
4．A
5．B
6．B
7．A
8．D
9．A
10．B
11．B
12．A
13．D
14．C
15．A
16．A
17．B
18．D
19．C
20．C
21．A
22．C
23．D
24．A
25．D
26．D
27．C
28．B
29．D
30．A
31．B
32．D
33．D
34．C
35．D
36．D
37．B
38．A
39．A
40．C
41．D
42．C
43．A
44．C
45．D
46．C
47．C
48．B
49．C
50．B


动词时态专项复习：冠词
第一部分:1-50 专项练习 第二部分:51-100全面解析

1．Jane's grandmother has wanted to write ______ children's book for many years, but one thing or another always got in ________ way.
A．a, / B．a, the C．the, the D．the, a

全面分析：多年来，Jane的祖母一直想写儿童书籍，但总有这样或那样的事情妨碍着她。结合句意，第一空泛指"一本儿童书籍"，故用不定冠词，又children是辅音音素开头，故用a；第二空考查固定短语get in the way阻碍，故用定冠词the，故选B项。

2．—Would you mind giving your advice on how to improve our business management?
—If you make _____ most of the equipment, there will be _____ rise in production.
A．the; a B．/; / C．/; a D．the; /

全面分析：——你介意就怎么提高商业管理提出建议吗？——如果你们充分利用设备，产量会有一次上升。第一空填the，make the most of固定短语，“充分利用”，第二空填a，泛指一次上升，选A。

3．You really ought to make most of the opportunity, because you won't get second chance.
A．the; a B．/; a C．/; the D．the; the

全面分析：你真的应该充分利用这个机会,因为你不会再有机会了。make the most of sth.固定短语,"充分利用";序数词前加不定冠词,表示"又一,再有",故选A。

4．India attained independence in 1947, after long struggle.
A．不填; a B．the; a C．an; 不填 D．an; the

全面分析：句意:印度在一段长时间的斗争之后,在1947年获得了独立。independence“独立”,不可数；a long struggle固定短语，“一段长时间的斗争”。故选A。

5．As _______ monitor of our class, Jason has _______ great responsibility to get the class to work together as a team.
A．a； the B．不填； a C．a； 不填 D．a； a

全面分析：作为我们班的班长, Jason肩负着使班级作为一个团队合作的重大责任。表示只有一人担任的头衔或职务的名词在作表语/同位语/补语或介词短语的宾语时不用冠词。monitor是表示独一无二的职位, 在句中充当介词as的宾语, 前面不加冠词, 所以排除A、C和D.第二空考查了短语have a responsibility to do sth.“有责任做.....”故选B。

6．Usually we are at ________ on ________.
A．the church; Sunday B．church; Sundays
C．the church; Sundays D．church; a Sunday

全面分析：通常我们在星期天在教堂做礼拜。at church“在教堂做礼拜”；on Sundays指“每逢周日”。故选B。

7．We were shocked to hear the news that ________ two Chinese engineers were shot to death in Pakistan. Worse still, ________ one died in hospital afterwards.
A．/; a third B．the; the third
C．the; a third D．/; the third

全面分析：听到两名中国工程师在巴基斯坦被击毙的消息，我们感到震惊。更糟糕的是，后来又有一个之后在医院死亡。two Chinese engineers是复数形式，不需用冠词；不定冠词和序数词连用，表示“在原来的基础上再多……”。本句的a third意为“又有一个”。故选A。

8．Take your time it's just ________ short distance from here to ________ restaurant.
A．不填；the B．不填；a C．the; a D．a; the

全面分析：别着急，从这里到餐馆只是一小段距离。表示泛指用a/an；表示特指用the，a short distance泛指“一段距离”；特指双方都知道的那个饭店，用the。故选D。

9．— Of the two bags, which one do you prefer?
— __________bigger one. It's_________ most beautiful one, I think.
A．The; a B．The; the C．A; / D．A; the

全面分析：——这两包，你喜欢哪一个？——更大的那个。“我想它是一个非常漂亮的包”。不定冠词a/an表示泛指“一个，某个”；定冠词the表示特指“那个，这个”。特指“那个大的”，用定冠词the，排除C、D；most有“非常”的意思，这时不表示最高级，a +most +形容词+名词/代词，表示“一个非常......的......”。故答案选A。

10．—It's said John will be in a job paying over $60,000 year.
—Right, he will also get paid by week.
A．the; the B．a; the C．the; a D．a; a

全面分析：—据说，约翰将拥有一份年收入超过60000美元的工作。—是的，他将按周获得报酬。表示“每年”用a year；表示 “按周计算”用by the week，故选B。

11．—Would you mind giving some advice on how to improve our study?
—If you make______most of the time,there will be______rise in your study efficiency.
A．/; / B．the; a C．/; a D．the; /

全面分析：考查冠词。句意：——您介意给我一些如何提高我们学习的建议吗？——如果你充分利用时间，你的成绩就会高效的提升。第一个空考查了短语“充分利用”make the most of；第二个空泛指一个提升。用不定冠词。故选B。

12．Hunger is _____ number one global health risk, so the WFP has organized a lot of programmes, which helps people most at ________risk.
A．the； / B．a； / C．the；the D．a；a

全面分析：考查冠词。句意：饥饿是全球最大的健康危险，因此联合国粮食计划署组织了许多项目，帮助最危险的人。序数词前需加定冠词，故第一空填the；at risk“处于危险中”是固定搭配，故第二空不用冠词。故选A。
13．Confucius Temple, world cultural heritage, is about 65 kilometres south of Mount Tai.
A．the; the B．a; the C．the;不填 D．a;不填

全面分析：考查冠词的用法。第一空泛指“一项世界文化遗产”；第二空方位名词不用冠词。
14．Without _____thorough understanding of China's specific conditions, you can't have ______ say over the only-child policy.
A．a; the B．the; a C．a; a; D．the; the

全面分析：没有深入了解中国的具体情况，你对独生子女政策就没有发言权。have a thorough understanding of“深入了解……”及have a say over“对……的发言权”是两个固定短语。故选C。

15．When you visit a museum you must ask for _______ permission before taking _______ photographs inside it.
A．/; / B．a; the C．a; / D．the; the

全面分析：当你去参观一所博物馆时，你在里面拍照前必须先得到允许。该题考查定冠词用法。permission意为“允许”，是不可数名词，不用冠词修饰；photograph意为“照片”，可数名词，句中为复数形式，而且表示泛指，故不用定冠词修饰。故选A。
16．When armed with ______ awareness of what you truly value, you are in ______ excellent position to pick a career you will find rewarding.
A．an; an B．the; an C．an; the D．the; the

全面分析：当你意识到自己真正在乎的是什么，你会处于一种极好的状态去寻找一个你认为值得的职业。名词awareness和position都是泛指，用不定冠词。选A。

17．Why don't you go for ________walk？It'll give you ________appetite for your lunch.
A．a；/ B．a；an C．/；the D．/；an

全面分析：考查固定搭配。go for a walk意为“去散步”；give an appetite for...意为“对……的欲望”。根据句意可知选B。

18．A study shows that eating one egg _______ day does not appear to raise ________ risk of heart attack.
A．the; a B．a; a C．a; / D．a; the

全面分析：一项研究显示，每天吃一个鸡蛋并不会增加心脏病的危险。第一空用不定冠词a表示“每一”；第二空用定冠词the，特指heart attack的危险。故选D。

19．While he was investigating ways to improve the telescope, Newton made ________ discovery which completely changed _________ man's understanding of color.
A．the; a B．a ; the C．a; 不填 D．不填；the

全面分析：当牛顿在调查改进望远镜的方法时，他做出了一个彻底改变人类对色彩认识的发现。make a discovery做出发现，发现，第一空指具体的一项发现；第二空后的man表示 “人类”, 前面要省略冠词。故选C。

20．China is seeing ______ growing trend in the number of people owning pets and ______ recent survey finds that one in 13 Chinese now keep animals.
A．the; a B．a; the C．a; a D．the; the

全面分析：考查冠词的用法。句意：拥有宠物的人越来越多，中国正见证着一个增长的趋势，且最近的一项调查显示，十三人中就有一人养着宠物。冠词a表示泛指，定冠词the表示特指，指上文提及到的事物，或双方都知道的事物。a growing trend，一种增长的趋势；a recent survey，最近的一项调查，都是泛指概念，故选C项。
21．American films always have ______ edge on foreign films at ______ Oscars, regardless of how popular a foreign film might be.
A．an; the B．the; the C．an; / D．the; /

全面分析：考查冠词。句意：不管外国电影是如何地受到欢迎，但是美国电影在奥斯卡金像奖评奖中比起外国影片来占据优势。have an edge on有一个优势。the Oscars奥斯卡金像奖。故选A。
22．We urge ________ extreme caution in ________ use of this medicine, which has not been officially approved yet.
A．an; the B．an; 不填 C．不填; the D．不填; 不填

全面分析：考查冠词。句意：我们强烈建议使用这种药要极端谨慎，这种药还没有被正式批准。caution为不可数，不用冠词修饰；第二个空特指这种药物的使用。故选C项。

23．Some researchers point out that _________ daydreaming is _________ means of relaxation.
A．the; a B．/; the C．a; the D．/; a

全面分析：一些研究人员指出，白日梦是一种放松的方式。第一空， daydreaming “白日梦”，是抽象名词，不可数，此处泛指，不用冠词；第二空means“方式”，可数名词，泛指，应用不定冠词，故选D。

24．India attained ________ independence in 1947, after ________ long struggle.
A．不填; a B．the; a C．an; 不填 D．an; the

全面分析：印度在经过长时期的斗争之后，在1947年获得独立。independence“独立”是不可数名词，gain independence（获得独立）或declare independence(宣布独立)是固定短语，不和冠词连用，故第一个空不填任何冠词。第二空a long struggle意为：一场长期的斗争。故选A。

25．It is well-known that ____ year 2020 saw many developments in ____ science and technology, with those in the field of space science being particularly notable.
A．/; / B．/; the C．the; the D．the; /

全面分析：众所周知2020年见证了科学和技术的许多发展,空间科学领域尤其引人注目。第一空特指2020年，用定冠词；第二空science and technology是固定短语，“科学技术”，故选D。

26．He used to be ________ teacher but later he turned ________ writer.
A．a; a B．the; / C．a; a D．a;/

全面分析：他过去是一名教师，但后来成了作家。第一空，teacher是可数名词，表示泛指，需用不定冠词a修饰；第二空，turn后面接表示职业的单数可数名词作表语时，名词前不加冠词。故选D。

27．Later ________ word came that Dolly ________ sheep had become seriously ill.
A．a; a B．the; the C．/; the D．/; /
【解析】【详解】句意：后来有消息说Dolly羊病得很重。word意为“消息”时， 是 不可数名词，不可数名词表泛指时，不加冠词，sheep特指Dolly羊，应在sheep前面用the表特指。故选C。

28．— Hello, could I speak to Mr. Smith?
— Sorry, wrong number. There isn't______ Mr. Smith here.
A．不填 B．a C．the D．one

全面分析：—你好，我能和史密斯先生通话吗？—你打错电话了，这里没有一个叫Mr. Smith的人。人的姓名前加不定冠词，表示某一个 “叫……的人”。根据语境可知，本句中是表示“某一位叫Mr. Smith的人”,其前可用不定冠词a。故选B。

29．______Jixi today is more beautiful now. Mr. Jackson said he would visit it ______third time.
A．The; / B．The; the C．/a D．The; a

全面分析：今天的鸡西市更漂亮了。Jackson先生说他将又一次来这里。第一空特指“鸡西市”应用定冠词；第二空为“不定冠词a/an + 序数词 + 名词”强调在已知数量上再累加一个，且third为辅音音素开头的单词，应用a。故选D。

30．We can have_______ bluer sky if we create________ less polluted world.
A．a; a B．a; the C．the; a D．the; the

全面分析：如果我们创造一个污染较少的世界，我们可以有一个更蓝的天空。独一无二的事物前有形容词修饰时，用不定冠词。第一空填a，泛指“一片蓝天”，第二空填a，表示“一个污染少点的世界”。故选A。

31．It doesn't make ______ difference whether he is in ______ favor of or against the plan.
A．a; a B．a; / C．/; a D．/; /

全面分析：他赞成还是反对这个计划没有什么影响。make a difference固定短语，“有影响，起作用”；in favor of固定短语，“支持”。故选B。

32．—Do you like playing football, Mike?
— No, I don't. But I like playing _________ basketball.
A．a B．an C．the D．/

全面分析：——Mike，你喜欢踢足球吗？——不喜欢，但是我喜欢打篮球。英语中，球类前不用冠词，故选D。

33．I don't know exactly what they are working on, but I've got rough idea offield of their research.
A．the, a B．不填, the C．the, 不填 D．a, the

全面分析：我不知道他们究竟在做什么，但我对他们的研究领域有了大致的了解。have got a rough idea “有大致的了解”，idea为泛指，故前加a，“他们的研究领域”中field为特指，故填the，故选D。

34．We were sitting quietly. All of sudden, a piece of classical music sounded, which gave life to the whole stadium.
A．the; / B．the; the C．a; / D．a; the

全面分析：我们安静地坐着，突然，一曲古典音乐响起，这给整个体育场带来活力。all of a sudden固定短语，“突然”；give life to固定短语，“给……带来活力”。故选C。

35．Although he knew _______ little about ________ large amount of work done in the field, he succeeded where more well-informed experiments failed.
A．the; the B．the; a C．a; 不填 D．不填; the

全面分析：尽管他对该领域中大量的工作知之甚少,但他却在其他知名实验员失败的地方取得了成功。little是代词，不与冠词连用；第二空的工作特指，用定冠词，故选D。


36．—Have you seen ________ pen? I left it here this morning.
—Is it ________ black one? I think I saw it somewhere.
A．a; the B．the; the C．the; a D．a; a

全面分析：你有没有见到一只铅笔？我今天上午落在这儿了。它是一只黑色的吗？我想我在哪里见到它了。不定冠词a/an表示泛指，故答案选D。

37．—What ________ fun it is to play with computer games!
—Don't you think it's ________ waste of time?
A．a; a B．/; a C．/; the D．the; the

全面分析：——玩电脑游戏多么有趣！——难道你不认为是浪费时间吗？fun为不可数名词，这里是泛指，故前面不用冠词a。waste 是可数名词浪费，这里也是泛指，故选B。

38．The book, ________ to tell people how to learn English as ________ second language, is very helpful for beginners.
A．intended; a B．intending; a C．intended; the D．intending; the

全面分析：这本书，想要告诉人们如何把英语作为第二语言学习，对初学者是有帮助的。“________ to tell people how to learn English as ________ second language”作定语，修饰The book，be intended for/ to do...固定短语“为了，目的是”，故第一空填intended；不定冠词接序数词表示“再一；又一”，此处表示“又一门语言”符合语境。故选A。

39．Kevin studied very hard last term and as _____ result, he made _____ great progress.
A．a; / B．/; a C．a; a D．/; /

全面分析：Kevin上学期学习非常努力，结果他取得了很大进步。as a result 固定短语，“结果”；progress表示“进步”是不可数名词，前面不能加a，故答案选A.

40．This book tells _________ life story of John Smith, who left _________ school and worked for a newspaper at the age of 18.
A．the; the B．a; the C．the; / D．a; /

全面分析：考查冠词。句意：这本书讲述了约翰•史密斯一生的故事，他在18岁的时候离开学校并且为一家报社工作。用以特指约翰•史密斯的故事应用定冠词the，常用搭配leave school意为“退学”，故选C。

41．He had wanted to write ____children's book for many years, but one thing or another always got in _________ way.
A．a; / B．the; the C．/; the D．a; the

全面分析：考查冠词。句意：许多年来，他都想写一本儿童读物，但是一件又一件的事情挡道。泛指一本儿童书籍用a；固定搭配get in the way意为“妨碍，挡道”，故选D。
42．The firm was badly in need of a manager who has good knowledge of French.
A．a;/ B．the;a C．/;a D．/;the

全面分析：考查冠词辨析。句意：这家公司急需一位懂法语的经理。in need o为固定短语，“f需要”。“一位懂法语的”为泛指，使用冠词a。故选C。

43．France is a main destination for U.S. travelers, _______ second only to the United Kingdom, according to _______ Commerce Department report.
A．不填; a B．不填; the C．a; a D．the; the

全面分析：一份根据商业部门的报告可知法国是美国旅游者的一个主要目的地，仅次于英国。second to仅次于，second前不加冠词；第二空是泛指，中心词为report。故选A。

44．—Did you make________breakthrough in the project?
—No.On________contrary，we stopped because of lack of money.
A．the；/ B．the；the C．a；the D．a；/

全面分析：make a breakthrough取得突破；on the contrary相反。 故选C。
45．What on ____ earth are you doing under such ___ burning sun? Go indoors.
A．the; the B．an; a C．/; / D．/; a

全面分析：这题考查冠词，第一空不填，on earth是“究竟”，第二空填a，因为burning修饰sun，句意是：你究竟在大太阳下面做什么？进去！选D。
46．The Chinese women's volleyball team holds very special place in nation's heart.
A．a; / B．the; the C．a; the D．the; a

全面分析：中国女排在全国人民心中占有非常特殊的地位。第一空可数名词place表示泛指，且very发音以辅音音素开头，需用不定冠词a限定；第二空特指“全国人民心中”，需用定冠词the修饰。故选C。

47．Now scientists are doing their best to make _______ breakthrough in cancer research.
A．the B．/ C．a D．one

全面分析：现在，科学家们正在尽他们最大的努力在癌症研究方面取得突破。make a breakthrough，固定短语，“取得突破”，应是不定冠词a，故选C。

48．As ______ consequence of all his hard training, Paul was able to take_____ lead in the race.
A．the, a B．a, the C．/, / D．a, a

全面分析：Paul能在比赛中领先，是由于他的刻苦训练。根据句意可知，第一空为短语as a consequence of“由于……”；第二空为短语take the lead“领先”。故选B。

49．The police have ________ power to arrest bad people by ________ law.
A．the; the B．/; / C．the; / D．/; the

全面分析：警察有权依法逮捕坏人。第一空，表示“有权做某事”短语为have the power to do sth. ，第一空应用定冠词the；第二空表示“依法，根据法律”短语为by law。故选C。

50．—Her concert was ________ big success last night.
—I think it surely makes ________ difference for a new talent.
A．/; / B．a; a C．a; the D．a; /

全面分析：——她的音乐会取得了巨大的成功。——我认为它一定会对一个有才能的新人产生巨大的影响。第一空:表示“成功的事”时，success是可数名词，此处用不定冠词表泛指；第二空：固定短语，make a difference，”起作用，有影响“。故选B。