高中英语语法复习：数词学案（含答案）
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| 名称 | 高中英语语法复习：数词学案（含答案） |  | |
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| 资源类型 | 教案 | ||
| 版本资源 | 人教版（2019） | ||
| 科目 | 英语 | ||
| 更新时间 | 2023-04-20 09:02:44 | ||
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高考语法-数词
1．数词的定义
数词是表示数目多少或先后顺序的词，有基数词和序数词两种。
表数量的数词叫基数词，如one, two, three，...
表顺序的数词叫序数词，如first, second, third, fourth, fifth，...
2．基数词构成
①1－12单独记
one, two, three, four, five, six, seven, eight, nine, ten, eleven, twelve
②13－19词尾为 teen：thirteen, fourteen, fifteen, sixteen, seventeen, eighteen, nineteen
③20－90逢整十词尾为 ty：twenty, thirty, forty, fifty，...
④21－99在十位数和个位数之间加连字符构成，如：
73 seventy three, 88 eighty eight
3．序数词
(1)基数词变为序数词，记忆口诀
一二三要单独记：one→first, two → second, three → third
th要从四加起：four → fourth, five → fifth，...
eight少个t：eight → eighth
nine去掉e：nine → ninth
ve用f来代替：five → fifth, twelve → twelfth
ty变成tie：twenty → twentieth
表第“几十几”，基数加序数记心里：
twenty one→twenty first
(2)序数词的使用
①序数词在句中主要作定语，一般情况下序数词前要加定冠词。
Monday is the second day of a week. 星期一是一周的第二天。
②序数词前有时加不定冠词，表示“又一、再一”，相当于another。
Would you like a second cup of tea 你还想再来一杯茶吗？
I had a fourth apple.我(吃了三个苹果后)又吃了一个苹果。
③first, second等有时可表示一批人或物。
The first milu deer came from China in the 1860s.
最早的麋鹿是在十九世纪六十年代来自中国的。
④有时序数词作状语，不加冠词。
He came out first in the contest.他在比赛中获得第一名。
⑤first, second等在用来指“冠军、亚军”等获胜名次时也常不加冠词。
He is first.他是冠军。
4．百分数、分数、小数的构成及用法
(1)百分数：基数词加百分号%(percent): 89%→eighty nine percent
(2)分数：分子基数词，分母序数词。分子大于1，分母用复数。1/3: one third，2/5: two fifths
[易错提醒]
(1)one and a half后的名词用复数，谓语动词一般用单数，不过事实上也可用复数。
(2)①当hundred，thousand，million，billion前面有基数词时，用单数形式，词尾不加 s；前面有many, several，a few修饰时，仍用单数形式：several billion years
②表示概数时，用ten, hundred, thousand, billion的复数形式加of，后面接复数名词。 thousands of lakes and forests
(3)“许多；很多；大量”的表达
在英语中，表示“许多，很多，大量”含义的单词除了many和much以外，还有许多较常用的词组。
①只接可数名词复数的有several, (a good/great) many, hundreds of, a (large/good/great) number of, numbers of, few, a few, quite a few, not a few等。
②只接不可数名词的有little, a little, quite a little, an amount of, amounts of(谓语动词用复数形式), a good/great deal of, a large sum of 等。
③既可接可数名词复数也可接不可数名词的有some, any, all, none, enough, plenty of, a lot of, lots of, a (large) quantity of, quantities of(谓语动词用复数形式), a diversity of, diversities of, a variety of, varieties of, a world of, a wealth of 等。
【技法点拨】
在语法填空中：
1．词性转换题：“句子成分”是关键
(1)如果要填的词在句中作主语、宾语或表语要考虑名词形式；
(2)如果要填的词被形容词、定冠词或形容词性物主代词所修饰，要考虑名词形式；
2．名词复数题：“牢记规则”辨是非
(1)如果空格处被these，several，many和数词等修饰时，要考虑名词的复数形式；
(2)如果一般现在时的谓语动词是动词原形或are，要考虑用名词的复数形式。
3．数词的复数形式前要注意基数词的应用；可数名词单数前要注意序数词的应用，序数词前通常有定冠词。
巩固提升：
一、单项选择
1．Asia, in the east of the world, is four times Europe.
A．Locating...as large as B．located...the size of
C．locating...larger than D．located ...as larger than
2．That multinational company is adopting an aggressive expanding strategy, and so far it has recruited ________ in the year of 2015 as they did two years ago.
A．three times as many new employees B．three times many new employees
C．three times as many as new employees D．three times more new employees than
3．India is a country with___________people.
A．the number of B．few C．a few D．a number of
4．More than___________people are crazy about the famous TV show Running Man.
A．thousands of B．80 thousand C．80 thousand of D．80 thousands
5．When the recorded data of the scandal about the president was collected, the length of tapes was ___________ the Atlantic Ocean.
A．as deep as 35 times B．as 35 times deep as
C．35 times the depth of D．35 times the depth as
6．After a 30-year hull（平静）, the U. S. is once again being visited by hurricanes _______ the ones that battered （重创）the Eastern seaboard in the 1940s, 50s and 60s.
A．the size of B．the size as C．of the size as D．as the size of
7．Scientists have suggested a solution to cutting down greenhouse effect: planting an area ________ the US with trees, which, when mature, would consume as much carbon dioxide as is being released.
A．of the size of B．the size of C．as the same size as D．the same size of
8．Chichester covered anyone had previously sailed alone.
A．more than twice the distance B．more than twice longer
C．over twice longer the distance as D．as over twice long as
9．It is reported that Americans eat too much protein every day, _______ as they actually need.
A．twice as much B．as twice much C．much as twice D．as much twice
10．The young man who is ________ can’t even imagine a bit about what happened ________ of the last century.
A．in the 20s…in the 80s B．in his 20s…in 80s
C．in his 20s…in the 80s D．in the 20s…in 80s
11．Paper produced every year is ______ the world’s production of vehicles.
A．as three times heavy as B．the three time weight of
C．three times the weight of D．three times heavier as
12．Americans eat ________ vegetables per person today as they did in 1910.
A．more than twice B．as twice as many
C．twice as many as D．more than twice as many
13．My car’s performance is ___ since the engine’s been tuned and the tires have been changed．
A．better as twice B．twice as the condition
C．twice as good D．twice as better
14．At a rough look, the area of the city is about ________ the old one.
A．three times the size as B．three times the size of
C．three times that is D．three times what is
15．_______ people in the world are sending information by e-mail every day.
A．Several million B．Many millions
C．Several millions D．Many million
16．Last year John earned _______ his brother did, who has a better position in a bigger company.
A．twice as many as B．twice as much as
C．twice as more as D．twice much as
17．Even before QE2 (Queen Elizabeth the Second), the Fed had $2.3 trillion worth of property on that list, two and a half times ________ owned before the financial crisis.
A．as it B．what it
C．what is D．as is
18．On the way, they fired on settlers’ houses and stole about twenty and six horses.
A．cattles B．head of cattles C．head of cattle D．heads of cattle
19．On a distant mountain was_____ sign in characters. “One world, one dream” it said.
A．a 20-feet B．20-foots C．a 20-foot D．20 feet
20．The house rent is high. I’ve got about half the space I had at home and I’m paying_______ here.
A．as three times much B．as much three times
C．much as three times D．three times as much
21．Even in some developed countries, disabled people are ______ to be denied health care than other people.
A．three times as likely B．as likely three times
C．three times more likely D．more likely three times
22．Even in some developed countries, the infected people are _____ to be denied health care than other people.
A．three times as likely B．as likely three times
C．three times more likely D．more likely three times
23．Good-looking women are ______ to be turned down for a job interview as unattractive ones, claims a study.
A．twice as likely as B．as likely twice
C．more than likely as D．more than twice as likely
24．_____ work has been done to improve our living environment.
A．A great amount of B．A number of C．A great many D．A plenty of
25．During China’s Golden Week, the first week of October, 650 million domestic tips were made in the country. The number of visitors to domestic travel destination was _____ of last year.
A．twice as big as B．twice as big as that
C．as big as twice D．twice the size
26．The ambitious white-collar worker has been working round the clock for many years, _____ to buy a beautifully-decorated _____ Tudor-style villa with an en suite bathroom and a sweeping staircase in a gated community with public transportation right at the front door.
A．hoping; 2 story B．hoping; 2-story C．to hope; 2-story D．to hope; 2-storys
27．On how to improve our spoken English, Mr. Smith has given us ______.
A．many good advices B．a number of advice
C．much advice D．some advices
28．Though I didn’t succeed this time, I would try ______time.
A．the ninth B．the nine
C．a ninth D．a nineth
29．The new stadium under construction for the next Asian Games the present one is due to be completed in two months.
A．measured three times as big as B．measuring three times as big as
C．measured as big as three times D．measuring as three times big as
30．Even though you offered ________ you have just offered, I would not sell it to you.
A．the money twice that B．twice the money that
C．twice the money what D．the money that twice
31．The farmers needed agricultural technology. Therefore, skilled workers were sent there.
A．a great number of; a large amount of B．a large amount of; a great deal of
C．a large amount of; a great number of D．a great many; a great number of
32．—Can you come on Monday or Tuesday
—I’m afraid ________ day is possible.
A．either B．some
C．neither D．any
33．She went to the bookstore and bought ________.
A．dozen books B．dozens books
C．dozen of books D．dozens of books
34．The new road is _________ of the old one.
A．more than three times the length B．three times more than the length
C．more than the length three times D．more three times than the length
35．The England pound was then worth ______ it is worth today; so you can see how rich he was then.
A．than many times B．many times than
C．many times what D．as many times as
36．When you study the local map, you’ll find this town is ________.
A．as twice as that one B．twice as a large town as that
C．twice as larger as that one D．twice as large a town as that
37．The dictionary I bought yesterday is far from cheap. But actually I would willingly have paid ____________ for it.
A．as much twice B．much as twice C．as twice much D．twice as much
38．After the new type of rice was introduced, the farmers produced ________ rice this year as last year.
A．as twice much as B．twice as much
C．twice much as D．twice as much as
39．Though you have dozens of eggs here, I just want these eggs.
A．two dozens B．two dozen C．two dozens of D．two dozen of
40．Our factory has introduced advanced technology early this year, and thus we can produce ________ last year.
A．twice as more bicycles as B．more bicycles than twice
C．more than twice bicycles as D．more than twice as many bicycles as
41．It’s reported that the United States uses __________ energy as the whole of Europe every year.
A．as twice B．twice much as
C．twice as much D．twice much
42．Paper produced every year is ______ the world’s production of vehicles.
A．the three times weight of B．three times the weight of
C．as three times heavy as D．three times as heavier as
43．As is reported, women with demanding jobs are almost _________ to suffer a heart attack.
A．twice likely as B．as likely twice
C．likely twice as D．twice as likely
44． A good friend should be kind and helpful. _________ is my mother.
A．A such friend B．One such friend
C．Any such friend D．Such one friend
45．What a table! I’ve never seen such a thing before. It is it is long.
A．half not as wide as B．wide not as half
C．not half as wide as D．as wide as not half
46．Even though you offered ________ you have just offered, I would not sell it to you.
A．twice the money what B．the money twice that
C．twice the money that D．the money that twice
47．The average income of the Changzhou, though still well below that of Suzhou, has been on the increase and is three times ________it was in 2001.
A．that B．which C．what D．How
48．To our surprise, we got ______ people to attend the meeting as we had expected.
A．twice many B．as twice
C．twice many as D．twice as many
49．Our factory has been developing rapidly this year. This year’s production is five times _____ it was ten years ago.
A．that B．what
C．which D．as
50．Light-to-moderate smokers were ________ to die of sudden heart problems than those who had never smoked.
A．as twice likely B．twice more possible
C．twice more likely D．as twice possible
答案：1．B2．A3．D4．B5．C6．A7．B8．A9．A10．C11．C12．D13．C14．B15．A
16．B17．B18．C19．C20．D21．C22．C23．D24．A25．B26．B27．C28．C29．B30．B
31．C32．C33．D34．A35．C36．D37．D38．B39．D40．D41．C42．B43．D44．B45．C
46．C47．C48．D49．B50．C
二、汉译英
1.小测验之后，我说起话来听上去一定洋洋自得，说它实在太简单了，我肯定能取得好成绩。
___________________________________________________________________________
2.女孩之间的友谊通常建立在共同的情感和互相支持之上，而男孩之间的友谊则以共同的活动或兴趣为基础。
___________________________________________________________________________
3.与1800年的人口相比，世界人口数量已经增长了六倍。
___________________________________________________________________________
4.与很多环境顾问一起工作之后，我知道健康的环境和经济发展并存是有可能的。
___________________________________________________________________________
5.二十年之后，当你看到它们都长成大树时，会有一种满足感，因为你知道自己为帮助解决气候变化问题尽了你的一份力。
___________________________________________________________________________
答案：
1.I must have sounded very proud of myself after the quiz, saying how easy it was and how I was sure to get a good grade.
2.Friendships between girls are usually anchored in shared feelings and support, but friendships between boys are based on shared activities or interests.
3.The world’s population has grown by six times what it was in 1800.
4.Having worked with many environmental consultants, I know that a healthy environment and development should be possible at the same time.
5.Two decades from now, when you look at what will have become a large tree, you will find a sense of satisfaction knowing that you did your part to help solve the problem of climate change.
高考语法-数词
1．数词的定义
数词是表示数目多少或先后顺序的词，有基数词和序数词两种。
表数量的数词叫基数词，如one, two, three，...
表顺序的数词叫序数词，如first, second, third, fourth, fifth，...
2．基数词构成
①1－12单独记
one, two, three, four, five, six, seven, eight, nine, ten, eleven, twelve
②13－19词尾为 teen：thirteen, fourteen, fifteen, sixteen, seventeen, eighteen, nineteen
③20－90逢整十词尾为 ty：twenty, thirty, forty, fifty，...
④21－99在十位数和个位数之间加连字符构成，如：
73 seventy three, 88 eighty eight
3．序数词
(1)基数词变为序数词，记忆口诀
一二三要单独记：one→first, two → second, three → third
th要从四加起：four → fourth, five → fifth，...
eight少个t：eight → eighth
nine去掉e：nine → ninth
ve用f来代替：five → fifth, twelve → twelfth
ty变成tie：twenty → twentieth
表第“几十几”，基数加序数记心里：
twenty one→twenty first
(2)序数词的使用
①序数词在句中主要作定语，一般情况下序数词前要加定冠词。
Monday is the second day of a week. 星期一是一周的第二天。
②序数词前有时加不定冠词，表示“又一、再一”，相当于another。
Would you like a second cup of tea 你还想再来一杯茶吗？
I had a fourth apple.我(吃了三个苹果后)又吃了一个苹果。
③first, second等有时可表示一批人或物。
The first milu deer came from China in the 1860s.
最早的麋鹿是在十九世纪六十年代来自中国的。
④有时序数词作状语，不加冠词。
He came out first in the contest.他在比赛中获得第一名。
⑤first, second等在用来指“冠军、亚军”等获胜名次时也常不加冠词。
He is first.他是冠军。
4．百分数、分数、小数的构成及用法
(1)百分数：基数词加百分号%(percent): 89%→eighty nine percent
(2)分数：分子基数词，分母序数词。分子大于1，分母用复数。1/3: one third，2/5: two fifths
[易错提醒]
(1)one and a half后的名词用复数，谓语动词一般用单数，不过事实上也可用复数。
(2)①当hundred，thousand，million，billion前面有基数词时，用单数形式，词尾不加 s；前面有many, several，a few修饰时，仍用单数形式：several billion years
②表示概数时，用ten, hundred, thousand, billion的复数形式加of，后面接复数名词。 thousands of lakes and forests
(3)“许多；很多；大量”的表达
在英语中，表示“许多，很多，大量”含义的单词除了many和much以外，还有许多较常用的词组。
①只接可数名词复数的有several, (a good/great) many, hundreds of, a (large/good/great) number of, numbers of, few, a few, quite a few, not a few等。
②只接不可数名词的有little, a little, quite a little, an amount of, amounts of(谓语动词用复数形式), a good/great deal of, a large sum of 等。
③既可接可数名词复数也可接不可数名词的有some, any, all, none, enough, plenty of, a lot of, lots of, a (large) quantity of, quantities of(谓语动词用复数形式), a diversity of, diversities of, a variety of, varieties of, a world of, a wealth of 等。
【技法点拨】
在语法填空中：
1．词性转换题：“句子成分”是关键
(1)如果要填的词在句中作主语、宾语或表语要考虑名词形式；
(2)如果要填的词被形容词、定冠词或形容词性物主代词所修饰，要考虑名词形式；
2．名词复数题：“牢记规则”辨是非
(1)如果空格处被these，several，many和数词等修饰时，要考虑名词的复数形式；
(2)如果一般现在时的谓语动词是动词原形或are，要考虑用名词的复数形式。
3．数词的复数形式前要注意基数词的应用；可数名词单数前要注意序数词的应用，序数词前通常有定冠词。
巩固提升：
一、单项选择
1．Asia, in the east of the world, is four times Europe.
A．Locating...as large as B．located...the size of
C．locating...larger than D．located ...as larger than
2．That multinational company is adopting an aggressive expanding strategy, and so far it has recruited ________ in the year of 2015 as they did two years ago.
A．three times as many new employees B．three times many new employees
C．three times as many as new employees D．three times more new employees than
3．India is a country with___________people.
A．the number of B．few C．a few D．a number of
4．More than___________people are crazy about the famous TV show Running Man.
A．thousands of B．80 thousand C．80 thousand of D．80 thousands
5．When the recorded data of the scandal about the president was collected, the length of tapes was ___________ the Atlantic Ocean.
A．as deep as 35 times B．as 35 times deep as
C．35 times the depth of D．35 times the depth as
6．After a 30-year hull（平静）, the U. S. is once again being visited by hurricanes _______ the ones that battered （重创）the Eastern seaboard in the 1940s, 50s and 60s.
A．the size of B．the size as C．of the size as D．as the size of
7．Scientists have suggested a solution to cutting down greenhouse effect: planting an area ________ the US with trees, which, when mature, would consume as much carbon dioxide as is being released.
A．of the size of B．the size of C．as the same size as D．the same size of
8．Chichester covered anyone had previously sailed alone.
A．more than twice the distance B．more than twice longer
C．over twice longer the distance as D．as over twice long as
9．It is reported that Americans eat too much protein every day, _______ as they actually need.
A．twice as much B．as twice much C．much as twice D．as much twice
10．The young man who is ________ can’t even imagine a bit about what happened ________ of the last century.
A．in the 20s…in the 80s B．in his 20s…in 80s
C．in his 20s…in the 80s D．in the 20s…in 80s
11．Paper produced every year is ______ the world’s production of vehicles.
A．as three times heavy as B．the three time weight of
C．three times the weight of D．three times heavier as
12．Americans eat ________ vegetables per person today as they did in 1910.
A．more than twice B．as twice as many
C．twice as many as D．more than twice as many
13．My car’s performance is ___ since the engine’s been tuned and the tires have been changed．
A．better as twice B．twice as the condition
C．twice as good D．twice as better
14．At a rough look, the area of the city is about ________ the old one.
A．three times the size as B．three times the size of
C．three times that is D．three times what is
15．_______ people in the world are sending information by e-mail every day.
A．Several million B．Many millions
C．Several millions D．Many million
16．Last year John earned _______ his brother did, who has a better position in a bigger company.
A．twice as many as B．twice as much as
C．twice as more as D．twice much as
17．Even before QE2 (Queen Elizabeth the Second), the Fed had $2.3 trillion worth of property on that list, two and a half times ________ owned before the financial crisis.
A．as it B．what it
C．what is D．as is
18．On the way, they fired on settlers’ houses and stole about twenty and six horses.
A．cattles B．head of cattles C．head of cattle D．heads of cattle
19．On a distant mountain was_____ sign in characters. “One world, one dream” it said.
A．a 20-feet B．20-foots C．a 20-foot D．20 feet
20．The house rent is high. I’ve got about half the space I had at home and I’m paying_______ here.
A．as three times much B．as much three times
C．much as three times D．three times as much
21．Even in some developed countries, disabled people are ______ to be denied health care than other people.
A．three times as likely B．as likely three times
C．three times more likely D．more likely three times
22．Even in some developed countries, the infected people are _____ to be denied health care than other people.
A．three times as likely B．as likely three times
C．three times more likely D．more likely three times
23．Good-looking women are ______ to be turned down for a job interview as unattractive ones, claims a study.
A．twice as likely as B．as likely twice
C．more than likely as D．more than twice as likely
24．_____ work has been done to improve our living environment.
A．A great amount of B．A number of C．A great many D．A plenty of
25．During China’s Golden Week, the first week of October, 650 million domestic tips were made in the country. The number of visitors to domestic travel destination was _____ of last year.
A．twice as big as B．twice as big as that
C．as big as twice D．twice the size
26．The ambitious white-collar worker has been working round the clock for many years, _____ to buy a beautifully-decorated _____ Tudor-style villa with an en suite bathroom and a sweeping staircase in a gated community with public transportation right at the front door.
A．hoping; 2 story B．hoping; 2-story C．to hope; 2-story D．to hope; 2-storys
27．On how to improve our spoken English, Mr. Smith has given us ______.
A．many good advices B．a number of advice
C．much advice D．some advices
28．Though I didn’t succeed this time, I would try ______time.
A．the ninth B．the nine
C．a ninth D．a nineth
29．The new stadium under construction for the next Asian Games the present one is due to be completed in two months.
A．measured three times as big as B．measuring three times as big as
C．measured as big as three times D．measuring as three times big as
30．Even though you offered ________ you have just offered, I would not sell it to you.
A．the money twice that B．twice the money that
C．twice the money what D．the money that twice
31．The farmers needed agricultural technology. Therefore, skilled workers were sent there.
A．a great number of; a large amount of B．a large amount of; a great deal of
C．a large amount of; a great number of D．a great many; a great number of
32．—Can you come on Monday or Tuesday
—I’m afraid ________ day is possible.
A．either B．some
C．neither D．any
33．She went to the bookstore and bought ________.
A．dozen books B．dozens books
C．dozen of books D．dozens of books
34．The new road is _________ of the old one.
A．more than three times the length B．three times more than the length
C．more than the length three times D．more three times than the length
35．The England pound was then worth ______ it is worth today; so you can see how rich he was then.
A．than many times B．many times than
C．many times what D．as many times as
36．When you study the local map, you’ll find this town is ________.
A．as twice as that one B．twice as a large town as that
C．twice as larger as that one D．twice as large a town as that
37．The dictionary I bought yesterday is far from cheap. But actually I would willingly have paid ____________ for it.
A．as much twice B．much as twice C．as twice much D．twice as much
38．After the new type of rice was introduced, the farmers produced ________ rice this year as last year.
A．as twice much as B．twice as much
C．twice much as D．twice as much as
39．Though you have dozens of eggs here, I just want these eggs.
A．two dozens B．two dozen C．two dozens of D．two dozen of
40．Our factory has introduced advanced technology early this year, and thus we can produce ________ last year.
A．twice as more bicycles as B．more bicycles than twice
C．more than twice bicycles as D．more than twice as many bicycles as
41．It’s reported that the United States uses __________ energy as the whole of Europe every year.
A．as twice B．twice much as
C．twice as much D．twice much
42．Paper produced every year is ______ the world’s production of vehicles.
A．the three times weight of B．three times the weight of
C．as three times heavy as D．three times as heavier as
43．As is reported, women with demanding jobs are almost _________ to suffer a heart attack.
A．twice likely as B．as likely twice
C．likely twice as D．twice as likely
44． A good friend should be kind and helpful. _________ is my mother.
A．A such friend B．One such friend
C．Any such friend D．Such one friend
45．What a table! I’ve never seen such a thing before. It is it is long.
A．half not as wide as B．wide not as half
C．not half as wide as D．as wide as not half
46．Even though you offered ________ you have just offered, I would not sell it to you.
A．twice the money what B．the money twice that
C．twice the money that D．the money that twice
47．The average income of the Changzhou, though still well below that of Suzhou, has been on the increase and is three times ________it was in 2001.
A．that B．which C．what D．How
48．To our surprise, we got ______ people to attend the meeting as we had expected.
A．twice many B．as twice
C．twice many as D．twice as many
49．Our factory has been developing rapidly this year. This year’s production is five times _____ it was ten years ago.
A．that B．what
C．which D．as
50．Light-to-moderate smokers were ________ to die of sudden heart problems than those who had never smoked.
A．as twice likely B．twice more possible
C．twice more likely D．as twice possible
答案：1．B2．A3．D4．B5．C6．A7．B8．A9．A10．C11．C12．D13．C14．B15．A
16．B17．B18．C19．C20．D21．C22．C23．D24．A25．B26．B27．C28．C29．B30．B
31．C32．C33．D34．A35．C36．D37．D38．B39．D40．D41．C42．B43．D44．B45．C
46．C47．C48．D49．B50．C
二、汉译英
1.小测验之后，我说起话来听上去一定洋洋自得，说它实在太简单了，我肯定能取得好成绩。
___________________________________________________________________________
2.女孩之间的友谊通常建立在共同的情感和互相支持之上，而男孩之间的友谊则以共同的活动或兴趣为基础。
___________________________________________________________________________
3.与1800年的人口相比，世界人口数量已经增长了六倍。
___________________________________________________________________________
4.与很多环境顾问一起工作之后，我知道健康的环境和经济发展并存是有可能的。
___________________________________________________________________________
5.二十年之后，当你看到它们都长成大树时，会有一种满足感，因为你知道自己为帮助解决气候变化问题尽了你的一份力。
___________________________________________________________________________
答案：
1.I must have sounded very proud of myself after the quiz, saying how easy it was and how I was sure to get a good grade.
2.Friendships between girls are usually anchored in shared feelings and support, but friendships between boys are based on shared activities or interests.
3.The world’s population has grown by six times what it was in 1800.
4.Having worked with many environmental consultants, I know that a healthy environment and development should be possible at the same time.
5.Two decades from now, when you look at what will have become a large tree, you will find a sense of satisfaction knowing that you did your part to help solve the problem of climate change.