所属成套资源:中考英语四轮总复习仁爱版
课时03.数词、介词-中考英语四轮总复习(仁爱版)
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第三课时 介词和数词
介词是历年中考的必考点,介词的考查主要集中在基本用法和习惯搭配上。常见考点如下:
①介词辨析②介词的固定搭配(“动词+介词”; “形容词+介词”;“介词+a/an/the/his/Jim’s +名词”)
考点一 表示时间的介词
1.at多用于具体钟点前,如:at seven,at a quarter to one;也可用于固定搭配中,如:at noon,at night。
2.in表示一段时间,用于年、月、世纪、四季或泛指的一天的上午、下午、晚上等前。如:in the twenty-first century在21世纪,in autumn在秋天,in the morning在早上;还可用于表示“从现在起,多长时间以后或多久之后”的短语中。
3.on主要用在星期几、具体某一天或具体某一天的早、中、晚或节日前。如:on the Mid-Autumn Festival在中秋节on June 1st 在6月1日
4.since,from和for
介词
含义及用法
例句
since
指从某时一直延续至今,后常接时间点,句子用完成时。
He has lived here since 1993.
从1993年开始他一直住在这里。
from
说明开始时间,可用过去、现在、将来的某种时态。
From now on,I will learn English every morning.
从今以后,每天早晨我将学英语。
for
指动作延续贯穿整个过程,后接时间段,句子用完成时。
I have studied English for six years.
我已经学英语六年了。
题组训练 用适当的介词填空
①Mother’s Day is the second Sunday in May.
②We usually get to school 7:40 in the morning.
③Her birthday is winter, the most beautiful season in a year.
④Uncle Wang has worked in the factory twenty years.
⑤—How soon will he come back?
— a month.
【答案】1.on2.at3.in4.for5.In
考点二 表示方位的介词
1.表示方位的in,on和to
in表示在某一地区之内(属于该范围);on表示与某地的毗邻关系;to表示在某一地区之外(不属于该范围)。如:
Fujian Province is in the south-east of China.福建省位于中国的东南部。
China is to the west of Japan.中国在日本的西边。
2.over,above和 on的用法
(1)over 有“正上方”“越过”“覆盖在上面”之意。
There is a bridge over the river.这条河上有一座桥。
(2)above 指在上方,不一定表示正上方。如:
Raise your hands above your head.把你的手举过你的头。
(3)on 指在上面,表示两物体接触。如:
There is a cup on the table.桌子上有一个杯子。
图示记忆
3.at,in和on的用法
(1)at 与较小的地点连用。如:at the bus stop,at home
(2)in 与较大的地点连用。如:in China,in the world
(3)on 表示在一个平面上。如:on the farm
4.in front of,in the front of和before
(1)in front of 表示“在……的前面”(范围外)。如:There are some trees in front of the classroom.教室前面有一些树。
(2)in the front of 表示“在……的前部”(范围内)。如:
Put the shortest flowers in the front of the bunch.把最短的花放在花束的靠前位置。
(3)before 所表示的位置关系和in front of相同,表示“在……前面”。如:He sits before me.他坐在我前面。
5.below,under
below表示“在……下方或位置低于……”,不一定有垂直在下之意;under 表示“在……正下方”。如:
The coat reaches below the knees.这件外套到了膝盖下面。
He hid under the bed.他藏在床底下。
1.(2020福建,21)The Chinese survey team remeasured Qomolangma successfully May 27, 2020.
A.in B.on C.at
【答案】 B 句意:中国考察队在2020年5月27日成功地重新测量了珠穆朗玛峰。本题考查介词的用法。表示在具体的某一天用介词on,故本题选B。
2.(2019福建,22)—Is that your headmaster?
—You mean the man blue?
A.on B.with C.in
【答案】 C 句意:——那是你们校长吗?——你指的是穿蓝色衣服的那个男人吗?本题考查介词的用法。“in+颜色”意为“穿着某种颜色的衣服”,是固定搭配,故选C。
3.(2018福建,21)I will give a T-shirt my brother as a birthday present.
A.by B.to C.from
【答案】 B 句意:我会送一件T恤给我弟弟当作生日礼物。本题考查介词的用法。give sth. to sb.把某物给某人。故选B。
4.(2017福建,22)China successfully hosted the Belt and Road Forum May, 2017.
A.on B.in C.by
【答案】 B 句意:在2017年5月,中国成功地主办了“一带一路”论坛。本题考查介词的用法。在月份前面用介词in。故本题选择B。
5.(2021龙岩二模,21)Lily helped an old woman her way to school.
A.on B.at C.in
【答案】 A 句意:Lily在她去学校的路上帮助了一个老妇人。本题考查介词的用法。on one’s way to表示“在某人去……的路上”。故选A。
6.(2021南平二模,22)World Book Day is celebrated April 23rd in most countries.
A.on B.in C.at
答案 A 句意:在大多数国家,世界读书日在4月23日被庆祝。本题考查介词的用法。at多用于具体的钟点时刻前。in用于年、月、世纪、四季或泛指的一天的上午、下午或晚上等名词前。on主要用在星期几、具体某一天或具体某一天的上午、下午、晚上前。由题干中的April 23rd可知本题选A。
7.(2021宁德二模,19)As we know, more than 80% of China’s cotton is produced Xinjiang these years.
A.in B.by C.for
【答案】 A 句意:众所周知,这些年超过80%的中国棉花产自新疆。本题考查介词的用法。in加地点表示在某地,by被,for为了。根据句意可知选A。
8.(2020福州质检,23)—Do you know the girl long hair?
—Yes. She is Kate.
A.in B.with C.behind
【答案】 B 句意:——你认识那个长头发的女孩吗?——认识。她是凯特。本题考查介词的用法。with意为“带有,具有”;in表示“用某种语言、材料等”;behind意为“在……后面”。根据句意可知选B。
9.(2020龙岩质检,21)—May I have a seat the window?
—OK.
A.by B.on C.in
【答案】 A 句意:——我可以坐在窗户边上吗?——可以。本题考查介词的用法。by在……旁边;on在……上面;in在……里面。根据句意可知选A。
10.(2017福建,84)So it is a special holiday Chinese people to show love and respect for their elders.
【答案】 for 句意:因此,它对于中国人来说是一个向他们的长辈表达爱和敬意的特殊节日。本题考查介词的用法。for作为介词,意为“对于”。根据句意,本题应填for。
11.(2021泉州二模,83)If the people were dissatisfied, they could easily fight the ruler.
【答案】 against 句意:如果人们不满意,他们会很容易对抗统治者。本题考查介词的用法。fight against对抗,故填against。
12.(2021厦门二模,83)Five Oxen was painted Han Huang, a famous painter in the Tang Dynasty.
【答案】 by 本题考查介词的用法。句意:《五牛图》是由唐朝著名画家韩滉所画。此句是被动语态,画是被画家画出来的,故填by。
13.(2018福建,88)When he tested a homemade part in his bathroom, it shot water /əˈkrɒs/ the room.
【答案】 across 句意:当他测试浴室的一个自制件时,水从一头喷到房间的另一头。本题考查介词的用法。由音标和语境可知应填介词across。
考点三 介词的固定搭配
介词在实际运用中常常和名词、动词、形容词等词类构成固定搭配,这些固定搭配在句子中经常出现。
1.介词与名词的固定搭配
on one’ own独自
in a word总而言之
in life 一生中
in time 及时
at sea在海上
on time准时,按时
in town在城里
on foot 步行
in English 用英语
in a low voice 小声地
in the distance 在远处
in public公开地
in the middle of...在……中间
in trouble处于困境
of course当然(可以)
in fact 事实上
in surprise 惊奇地
in a hurry 匆忙,急忙
in the street在街上
by the way顺便说
at the meeting 在会上
in the end 最后
in space 在太空
in order 有序;整齐
on display 陈列;展出
in the day 在白天
at the foot of 在……脚下
at the table 在桌子旁
at school 在上学
on show 在展出
day by day 一天天,逐日
in silence 安静地
at the back of 在……后面
in this way 用这种方法
out of breath上气不接下气
at the same time 同时
on one’s way to ……在某人去……的路上
by hand 手工;(信件)亲手交付
by the end of到……结束时
in the air在空气中
out of sight 消失;看不见
on duty 值日
out of work 失业
on the left/right在左/右边
on the other side of在……的另一边
to one’s surprise/joy使某人吃惊/高兴的是
2.介词与形容词的固定搭配
careful about 小心
sure about/of肯定
certain about/of 确定
good at 擅长
good for对……有好处
surprised at 对……吃惊
famous/known for因……而出名
ready for为……做好了准备
late for迟到
different from与……不同
successful in 在……成功
interested in对……感兴趣
disappointed in对……失望
proud of为……感到骄傲
tired of厌倦
afraid of害怕
short of短缺
full of充满
similar to与……相似
familiar to为……所熟悉
satisfied with对……满意
busy with忙于
friendly to对……友好
angry with生……的气
strict with sb.对某人要求严格
3.介词与动词的固定搭配
laugh at 嘲笑
take part in 参加
think of 想出;想起
go on with继续
worry about 为……担心
look after 照顾,照料
look like 看起来像
look for 寻找
hear from 收到……的来信
listen to 听
arrive in 到达(大地方)
arrive at 到达(小地方)
get to 到达 wait for 等候
agree with 同意,赞同
think about 考虑到
catch up with赶上,追上
come from 来自
pay for 付钱买……
shout at 对……叫嚷
talk about 谈论
play with 与……玩耍
point at 指向
point to 指出;暗示
hear of 听说
look forward to 盼望
do well in 在……学/做得好
fall behind 落后
ask for 要求,请求
take away拿走,带走
turn...into...把……变成……
help...with...帮助……做……
take/catch hold of抓住
decide on决定
take care of 照顾
hand in上交
have nothing to do with与……无关
base on 以……为根据
keep...out of 不让……进入
leave for 离开去(另一个地方)
talk to/with 与……谈话
go in for 爱好,对……感兴趣
look at看
deal with处理
depend on依靠,依赖;取决于
tie...to...把……系在……上
pass on传递
smile at对……微笑
believe in信任
belong to属于
look around向四周看
write to给……写信
regard...as...把……看作……
1.(2021福建,30) fire, we should stay calm and leave as quickly as possible.
A.In case of B.In need of C.In search of
【答案】 A 句意:如果发生火灾,我们应该保持冷静,尽快离开。本题考查介词短语辨析。in case of 如果;in need of 需要;in search of 寻找。由语境及“we should...”可知,这是假设。故答案为A。
2.(2018福建,27)Blue whales are . We should try to protect them.
A.in time B.in public C.in danger
【答案】 C 句意:蓝鲸濒临灭绝。我们应当努力保护它们。本题考查介词短语辨析。in time及时;in public在公共场合;in danger处于危险之中。由句意可知选C。
3.(2021漳州二模,32)The instructions tell us everything about how to make the model rocket.
A.in detail B.in general C.in person
【答案】 A 本题考查介词短语。句意:这个说明书详细地告诉我们如何去制作火箭模型。in detail详细地;in general大体上;in person亲自。故选A。
4.(2020厦门海沧二模,23)—Jenny, what’s the matter? You look angry.
—I’m really mad my little brother. He drew a pig in my book.
A.in B.at C.on
【答案】 B 句意:——Jenny,你怎么了?你看起来很生气。——我真的生我弟弟的气。他在我的书上画了一头猪。本题考查介词短语。be mad at sb.意为“生某人的气”。故选B。
5.(2020厦门集美二模,22)Tom was watching TV when the rain began to beat heavily the windows.
A.across B.on C.against
【答案】 C 句意:汤姆正在看电视,这时雨开始猛烈地敲打窗户。本题考查介词。beat against是固定搭配,意为“反复在……上拍打”,故选C。
6.(2021福建,87)Tai chi is a fun exercise, easy to learn, and you don’t have to be good it to enjoy it.
【答案】 at be good at为固定短语,意为“擅长……”。故填at。
7.(2020福建,86)And they were changed golden grains(谷粒) of rice.
【答案】 into/to 句意:它们被变成了金色的谷粒。本题考查介词短语。change...into/to...意为“把……变成……”,故填to或into。
8.(2019福建,83 )This all changed, thanks a man named Cai Lun.
【答案】 to 句意:多亏了一个名叫蔡伦的人,这全都改变了。本题考查介词短语。thanks to多亏,由于。故填to。
9.(2021龙岩二模,82)Wuyi Mountain lies the north of Fujian Province.
【答案】 in 句意:武夷山位于福建省的北部。本题考查介词短语。表示方位的介词的用法:in表示“在……范围之内”;on表示“与……相邻或接壤”;to表示“在……范围之外”。故填in。
10.(2021福州二模,81)They opened it and found it was full letters, poems, pictures and other small things.
【答案】 of 句意:他们打开它,发现里面充满了信件、诗歌、图片和其他的小东西。本题考查介词短语。be full of充满,故填of。
综合练
1.(2021江苏扬州,3改编)China’s first Mars rover, Zhurong, touched down on the Red Planet May 15, 2021.
A.on B.in C.at
【答案】 A 本题考查介词词义辨析。在具体的某一天前应用介词on。故答案为A。
2.(2021安徽,24改编)Our country has made great progress in the fight blue skies and clear waters.
A.for B.against C.between
【答案】 A 本题考查介词词义辨析。for为了;against反对,靠,倚;between在两者之间。因为蓝天碧水是我们国家的奋斗目标,故用for表示目的。
3.(2021海南,27)Sansha, a beautiful city, lies the south of China.
A.in B.on C.to
【答案】 A 句意:三沙,一个美丽的城市,位于中国的南方。考查介词。三沙在中国境内,用in表示“在……内”,故选A。
4.(2021河北,31改编)I eat rice beef and potatoes. It’s delicious.
A.in B.with C.for
【答案】 B 本题考查介词用法。on在……上;with有,带有;for为……。设空处是指带有牛肉和土豆的米饭,应该用with。故答案为B。
5.(2021云南昆明,21改编)Since 1921, the Communist Party of China(中国共产党) has been leading the Chinese people a better life.
A.of B.on C.to
【答案】 C 本题考查介词。lead...to...带领/引领……到……,故选C。
6.(2021辽宁本溪,4改编)Cathy always makes good use of her time to study, even her lunch break.
A.around B.during C.from
【答案】 B 本题考查介词词义辨析。around 在……周围;during在……期间;from 来自。根据语境可知逗号后的部分表示“甚至在午餐期间”。故答案为B。
7.(2021内蒙古包头,22改编)—What’s the most exciting holiday you’ve ever been ?
—For me, it was a trip to Iceland with my family to see the Northern Lights.
A.in B.on C.to
【答案】 B 本题考查介词短语。on holiday为固定短语,意为“度假”。故答案为B。
8.(2021天津,24改编)Anna is taller than me. She sits me in the classroom.
A.between B.behind C.among
【答案】 B 本题考查介词。根据Anna is taller than me.可知,她应该是坐在我后面,故选B。
9.(2021甘肃武威,7改编)We left such a hurry that we forgot our tickets.
A.on B.for C.in
【答案】 C 本题考查介词固定搭配。短语in a hurry“匆忙地”。故选C。
10.(2021广东,34改编)The bridge runs two mountains.
A.under B.among C.between
【答案】 C 本题考查介词。根据常识可知,桥应该是建于两座山之间。between在(两者)之间;among在(三者或三者以上)之间,故选C。
11.(2021浙江温州,5改编)Kate felt excited to see a group of sheep walking her into a village in Qinghai.
A.over B.past C.across
【答案】 B 本题考查介词。over从正上方越过;past从旁边经过;across从表面穿过或横穿。根据语境可知,一群羊从她旁边经过,故选B。
12.(2021重庆,22改编)The Tianwen-1 Probe landed on Mars May 15th, 2021.
A.at B.in C.on
【答案】 C 本题考查介词的用法。具体的某一天前应用介词on,故选C。
13.(2021江苏泰州,3改编)It’s reported that people with college education can make more money than those without.
A.in general B.in public C.in time
【答案】 A 句意:据报道,接受过大学教育的人总体上比那些没有接受大学教育的人赚的钱多。本题考查介词短语。in general总的来说,大体上; in public公开地; in time及时地。本题选A。
14.(2021湖北武汉,32改编)—I could tell the look on her face that something exciting had happened.
—Exactly!
A.on B.with C.by
【答案】 C 本题考查介词。on在……上,关于;with用;by通过,由。由语境可知选C。
15.(2021湖南湘潭,24)—How do you study for a test,Eric?
—I study working with a group.
A.by B.with C.in
【答案】 A 本题考查介词。由How可知,问句是在询问方式,故此处指“通过小组学习的方式”,故答案选择A。
数词
数词单独考查较少,常和主谓一致及语篇相结合。
①基数词②序数词③分数/百分数④倍数
基数词考点:
拼写:1-12; 13-19(-teen); 整十(-ty);
1.确数及概数表达:确数:数字+ hundred/ thousand/ million/ billion
概数:hundreds of 成百上千/ thousands of成千上万
millions of 数以百万计 / billions of 数以十亿
(记忆口诀:有数字无S, 有S 有of)
2.in one’s + 整十复数:某人多少岁左右 Eg: in his twenties 在他20岁左右
3.复合形容词:数词+ 连字符+ 名词单数 +形容词
Eg:He is an eight-year-old boy. 八岁的男孩 / I am eight yeas old.
4.时刻表达: 顺读法/ 逆读法 (past 过 / to 差) 5:20/6:55
5.年代表达: in the 1980s 20 世纪80年代 (数字+1 中文-1)
6.基数词表顺序:名词+基数词 (大写) = the + 序数词 + 名词
Eg: Class Two = the second class 二班
1.Every year, books are donated to the children in poor areas.
A.million B.millions
C.millions of D.million of
【答案】 C 句意:每年成千上万本书被捐赠给贫困地区的孩子们。本题考查数词的用法。hundred,thousand,million等词前如没有表示具体数字的词,末尾要加-s,并与of连用。故选C项。
2.There are many old people who are over a h years old in Hainan.
【答案】 hundred 考查数词。句意:在海南,有许多超过一百岁的老人。
3.Wendy once spent a year in Los Angeles for further study in her .(forty)
【答案】 forties “in one’s+几十的复数”,表示“在某人几十多岁时”。此空填forty的复数形式forties,指“在她四十多岁时”。
序数词考点:
拼写:( -th ) 特殊 (必记):first; second; third; fifth; eighth; ninth; twelfth;
1. 第几十表达 ( -ieth ):twenty- twentieth; thirty- thirtieth; fifty- fiftieth
2. the + 序数词;如果有形容词性物主代词/名词所有格,省略the。
3. a/an + 序数词: “又一,再一”: a second time
4. 分数表达:巧记口诀:子基母序,分子大于1分母加S 2/5: two fifths
特殊表达:1/2: a half; 1/4: a quarter/ one fourth; 3/4: three quarters
5. 小数: 点:point Eg: 5.2 five point two
6. 百分数:%:percent Eg: 50%: fifty percent
7. 加减乘除: plus (加);minus (减);multiplied (乘) ; divided (除)
Eg:Six multiplied by four is/ equals twenty-four.
Twenty seven divided by nine is/ equals three.
注意: one→first (第一) / once (一次); two → second (第二) / twice (两次)
1.Our Party was founded in 1921.We’ll celebrate her birthday on July 1st this year.
A.one hundred B.one hundredth C.the one hundredth
【答案】 B 本题考查序数词的用法。句意:我们的党成立于1921年。我们将在今年的7月1日庆祝她的100岁生日。表示“第……个生日”时,用序数词。her one hundredth birthday她的第100个生日。序数词前已经有形容词性物主代词her修饰,故不再加定冠词the。故选B。
2.Peng Ming finally became the winner of season of CCTV?s Chinese Poetry Conference.
A.five B.fifth
C.the fifth D.fifths
【答案】 C 句意:彭敏最终成为央视第五季中国诗词大会的获胜者。本题考查数词的用法。此处用序数词加单数名词,序数词前要加定冠词,表示“第几”,故选C。
3.Some lanterns have riddles(谜语)on them, which encourage people to try to be the f to find the answer.
【答案】 first 本题考查固定结构“be the+序数词+to do sth.”,表示“第几个做某事”。根据常识可知,灯谜是鼓励人们努力成为第一个发现答案的人。故填序数词first。
4.I’m not sure how I feel about that, with my birthday coming. (第十八)
【答案】 eighteenth 生日前的数词一般要用序数词,表示第几个生日。故答案为 eighteenth。
5.The manager’s room is right above mine. It’s on the (three) floor.
【答案】 third 句意:经理的房间正好在我楼上,它在三楼(第三层楼)。本题考查数词的用法。此处表示“在三楼”,应用序数词。故填third。
考点三 分数用法
一、分数表示法
1.分数是由基数词和序数词一起来表示的。基数词作分子,序数词作分母,分子大于1时,序数词要用复数形式。如:
3/4 three fourths或 three quarters
1/3 one third或a third
24/25 twenty-four twenty-fifths
314 three and one fourth或 three and one quarter
1/2 a half
1/4 one quarter或a quarter
112 one and a half
2.当分数后面接名词时,如果分数表示的值大于1,名词用复数;小于1,名词用单数。如:
112 hours 一个半小时(读作 one and a half hours)
234 meters 二又四分之三米(读作two and three fourths meters)
4/5 meter 五分之四米
5/6 inch 六分之五英寸
1.The gravity on Mars is only about of that on the Earth.
A.three eights B.third eights
C.three eighths D.third eighths
【答案】 C 句意:火星上的重力只有地球重力的八分之三。本题考查分数。分数的表达为:先说分子,用基数词表示;再说分母,用序数词表示;当分子超过1时,分母要加-s。故本题选C。
2.—Mum, of my classmates glasses.
—Oh, my God. You need to protect your eyes well.
A.three-fourths;wears B.three-fourth;wear
C.three-fourth;wears D.three-fourths;wear
【答案】 D 句意:——妈妈,我的同学中四分之三都戴了眼镜。——哦,天哪。你需要好好保护眼睛。此题考查分数的用法及主谓一致。分数的表达方法:先说分子,再说分母;分子用基数词,分母用序数词;分子大于1时,分母用复数。四分之三写成:three fourths或 three-fourths。当“分数+of+名词”作主语时,谓语动词的形式根据名词的数来确定。本题决定谓语动词形式的是classmates,所以选D。
随堂练习
一、语法选择
The world's longest cross-sea bridge—the Hong Kong-Zhuhai-Macao Bridge (HZMB)—opened on 1 . The Guardian described it as one of the “ 2 wonders of the modern world”.
Construction (施工) on the HZMB began 3 and cost about 4 yuan. The bridge links Hong Kong and Macao to the Chinese mainland city of Zhuhai, CGTN reported.
The HZMB is unique in many ways. It's designed to have a service life of 120 years, 5 than most bridges.
In one section, the bridge turns into a 6 undersea tunnel that passes through two man-made islands. The tunnel is the world's longest undersea tunnel for road traffic, allowing large ships to continue passing through the sea area in the tunnel.
The bridge's engineers had to consider many environmental factors in order to protect the surrounding (周围的) environment while building the bridge. 7 of Chinese white dolphins, an endangered species that lives in the area, attracted particular concern.
The HZMB will make it much more convenient to travel between the 8 areas it connects. It will shorten the travel time from Hong Kong to Zhuhai from four hours to about 9 .
By connecting local cities and regions closer, the bridge will benefit 10 people in this area. It is expected to drive the economic (经济的) development of Hong Kong, Macao and nine Guangdong cities, South China Morning Post noted.
1.A.October 24, 2018 B.24nd October, 2018
C.2018, October 24 D.2018, 24th October
2.A.seven B.seventh C.the seventh D.sevens
3.A.in 2009 B.in the 2009
C.in 2009s D.in the 2009s
4.A.120 billions B.120 billion of
C.120 billions of D.120 billion
5.A.20-year-long B.20 years longer
C.20 years long D.20-year longer
6.A.6.7 kilometer B.6.7 kilometers
C.6.7-kilometer D.6.7 kilometer's
7.A.One third B.One three
C.One thirds D.One threes
8.A.one B.two C.three D.four
9.A.45 minute B.45 minutes
C.45-minute D.45 minutes'
10.A.million B.millions
C.million of D.millions of
【答案】文章介绍了港珠澳大桥。
1.A 本题考查日期的表达方式。英文日期的表达方式通常为:月—日—年或日—月—年,但B项基数词变序数词方法错误,故答案选择A。
2.A 本题考查基数词。“七大奇迹”并非“第七大奇迹”,故答案选择A。
3.A 本题考查年份的表达方式。在2009年应为 in 2009,故选A。
4.D 本题考查数词中billion的用法。当前面有具体的数字时,不能加-s,也不跟of, 故选D。
5.B 本题考查数词和形容词比较级。根据后面的比较级标志词than可知,long应该用比较级形式longer。故答案选择B。
6.C 本题考查数词和名词组成的复合形容词。6.7-kilometer修饰后面的名词短语undersea tunnel,故答案选择C。
7.A 本题考查分数。one third三分之一,故答案选择A。
8.C 本题考查基数词。根据上下文可知,港珠澳大桥连接香港、珠海和澳门三地,故答案选择C。
9.B 本题考查基数词和名词的复数。 句意:从香港到珠海的行车时间,将由四小时缩短至约四十五分钟。故答案选择B。
10.D 本题考查数词中million的用法。millions of数以百万计的,故答案选择D。