牛津上海版九年级上册 数词的用法讲解及练习（有答案）

数词的用法

一、定义：

表示“多少”和“第几”的词，叫数词。数词分为基数词和序数词两种。 

二、基数词和序数词的用法：

1) 基数词

          one, two, three..., 表示“一、二、三......”等。注意eleven, twelve, thirteen, fifteen, eighteen,

twenty,thirty, forty, fifty, eighty, a/one hundred/thousand等词的拼写。

2) 序数词

first, second, third..., 表示“第一、第二、第三......”等，注意first, second, third, fifth, eighth, ninth, twelfth, twentieth, twenty-first, ninety-ninth, (one) hundredth等词的拼写。

基数词与序数词的构成

基数词变序数词的口诀：

基变序，有规律，词尾加上th。

一、二、三，特殊记，词尾字母t, d, d(first, second, third)。

八少t, 九去e(eighth, ninth), ve要用f替(fifth, twelfth)。

整十变序也容易，y变成ie 就可以。(ninetieth)。

几十几(twenty-five), 只变个位就可以。(twenty-fifth)

3) 钟点表达法

11:15读作eleven fifteen或a quarter past eleven

9:30读作nine thirty或half past nine

7:35读作seven thirty-five或twenty-five (minutes) to eight

11:45读作eleven forty-five或a quarter to twelve

10:20 a.m. 读作ten twenty a.m.

2:30 p.m. 读作two thirty p.m.

4）日期表达法

具体日期前要用介词on表示。

在10月10日：

       on October 10读作on October (the) tenth

on 10th October读作on the tenth of October

在2008年7月20日：

on July 20, 2008读作on July (the) twentieth, two thousand and eight

5）年份表达法

月份和年份前要用介词in表示。

在1975年：

in 1975读作in nineteen seventy-five

在2005年：

in 2005读作in two thousand and five 

在2009年3月：

in March, 2009读作in March, two thousand and nine

6）分数、小数、百分比表达法

a. 分数的构成

分子用基数词，分母用序数词，分子分母间用连字符。分子大于1，序数词用复数形式。

1/4 one-fourth, 1/12 one-twelfth, 2/3 two-thirds, 4/19 four-nineteenths

特殊用法：1/2 a/one half, 1/4 a/one quarter, 3/4 three quarters

分子分母数值较大, 如55/88可读作：fifty-five over eighty-eight

b. 小数和百分比

0.37读作zero point three seven 58%读作fifty-eight percent

*7）基本数学运算表达

A: How much is 8 plus 9?

B: 8 plus 9 is/equals 17.(8+9=17)

18-3=15        18 minus 3 is/equals 15.

6×5=30        6 multiplied by 5 equals/is 30.

15÷5=3        15 divided by 5 equals/is 3.

注意

①编号可以用序数词也可以用基数词，数字较大一般用基数词。

Lesson Six或the sixth lesson    Room 405

Part One或the first part      Channel 5/Five

Class Two, Grade One      No. 10 Bus或Bus No. 10

②含有数词的定语：

a five-day holiday       a three-year-old daughter

an 800-word composition     a two-meter-deep swimming pool

③其他习惯表达和固定词组：

in one’s forties 在......四十多岁时

at the age of forty 在四十岁时

in the 1990s 在二十世纪九十年代

hundreds of, thousands of, millions of 数百的，数千的，数百万的

one and a half years=one year and a half 一年半

two and a half months=two months and a half 两个半月

课堂练习

I. Complete the following sentences with the given words in their proper forms.

1. The weather last summer was rather __________.(awfully)
2. There’s nothing __________ than going out in the cold with wet hair.(bad)
3. Florence learned __________ nursing skills while she volunteered in hospitals around Germany and France.(base)
4. He played the piano so __________ that a lot of people lost themselves in his music.(beautiful)
5. The fish __________ the fisherman to let him go and offered to grant the fisherman any wish in return.(beg)
6. Since its __________ in the mid-nineteenth century, the World Expo has helped people to exchange ideas and develop the world’s economy, culture, science and technology.(begin)

II. Complete the following sentences with proper words.The first letter of each word has been given.

1. A b__________ diet is very important to our health.
2. To score, the player had to throw the ball into the b__________.
3. These b__________ are no longer producing electricity. They’re useless.
4. There he learned that about 40,000 soldiers were killed in a b__________ on June 24th, 1859.
5. Along with his b__________ courses, he was taking some language courses, including Italian.
6. The great work of the Red Cross helps so much that it has been a________the Nobel Peace Prize twice.

III. Complete the following sentences according to the Chinese given.

1. You must learn ______________________________________(保持你的平衡) when you skate.
2. I _________________________________________(过去常常一天洗两次澡), morning and night.
3. Our headmaster ____________________________________(给获胜者颁奖) yesterday morning.
4. My mum says some fast food ____________________________________(有害于我们的健康). It is usually high in fat.
5. The new flat _______________________________________(不属于我). It’s my aunt’s.
6. It was _______________________________________(变得越来越困难) live on his salary.

keys：I. 1.awful  2. worse  3. basic  4.beautifully  5. begged  6. beginning

II. 1. balanced  2. bakery  3. batteries 4. battle   5. basic  6.awarded

III. 1.to keep your balance  2. Used to take a bath twice a day  3. awarded the prizes to the winners               4. Is bad for our health              5.doesn’t belong to me              6. becoming more and more difficult to

IV.选择填空。

I.Choose the best answer.

(  ) 1. During World War II, a Jewish (犹太) lady was protected by a local family in Shanghai in

her ______.

A. fifties    B. fifty    C. fiftieth    D. the fiftieth

(  ) 2. Rose received a letter full of love from her parents on her ______ birthday.

A. sixteen    B. sixteen’s   C. sixteenth     D. sixteenths

(  ) 3.They’ve done only ______ of the work. It’s impossible for them to finish it on time.

A. three-tenth   B. three-tenths   C. third-tenths   D. third tenth

(  ) 4. - How many new words are there in ______ lesson?

- There are only ______.

A. five; fifth    B) fifth; five   C. the fifth; the five  D. the fifth; five

(  ) 5. About ______ of the boys ______ interested in the game.

A. three-fourths; is                        B. three-four; is  

C. three-fourths; are                         D.three-fours; are

(  ) 6.-Is tomorrow your father’s ______ birthday?

-No, it’s his forty-sixth birthday—he is already in his ______.

A. forties; fortieth   B. fortieth; forties  C. fortieths;fortieth  D. forty; forties

(  ) 7. The captain has an______ son.

A. eleven-years-old       B. eleven years old

C. eleven year old        D. eleven-year-old

(  ) 8. The street is about ______ wide.

A. two meters   B. two meter   C. a two meter   D. a two-meter

(  ) 9. We watched an______ performance given by London at the closing ceremony of the Beijing

Olympic Games.

A. eight minutes   B. eight minute  C. eight-minutes  D. eight-minute

(  )10. About ______ schools in the city welcomed a new kind of letter box in mid-September.

A. hundred    B. hundreds of   C. two hundreds  D. two hundred

(  )11. ________ of the students of Grade ________ are girls who like singing.

A) Three-fifths ... Nine          B) Three-fifth ... Ninth

C) Three-fifths ...Ninth          D) Three-fifth ... Nine

(  )12.______ Chinese make their way back home before the Spring Festival.

A）Million of            B)Ten millions        C)Millions of        D)Ten millions of

(  )13. The CN TV Tower（which is in Canada）is a _______ building. D

A.553 meters tall         B. 553-meters tall     C. 553-meters-tall     D. 553-meter-tall

(  )14. Obama paid a ______ visit to China. He was warmly welcomed by Chinese people.

A) four days             B) four-day          C) four-days         D) four-days'

(  )15.Over _______students in our school like surfing on the Internet.

A) three hundred         B) three hundreds     C) hundred of       D) three hundred of

II. Fill in the blanks with the proper form of the given verbs.

1. Our new flat is on the __________ floor, and we have a good view of the park.(ten)

2. Mum made a big chocolate cake for little Kevin’s __________ birthday.(six)

3. We still need __________ more chairs for the meeting room．(ninth)

4. Eric, the __________ son of the family, has a special interest in physics.( three)

5. Alex is __________ years old and is taken good care of in the kindergarten.(fourth)

6.Climb up to the __________ floor, and you can enjoy a better view.( eleven)

7. Children go to ________ school after they leave elementary school. (second)

8. The students took the PISA test in __________ subjects—reading, maths and science.(third)

9. This is the __________ time for our school to hold the robot-making contest.(six)

10 The medicine should be taken __________ a day after meals, George.(two)

Keys: I. 1-5 ACCDC   6-10 BDADD  11-15 ACDBA

II. 1. tenth   2. sixth    3. nine    4. third   5. four    6. eleventh     7. secondary     8. three    9. sixth      10. twice 

V.Choose the best answer.（根据短文内容，选择最恰当的答案）

（1）

Choose the words or expressions and complete the interview.

Every year, thousands of people's lives arc affected by disasters. This week, in News Magazine a disaster survivor, Fiona Jones, tells us her stories.

NW: Fiona, you were in a cyclone (飓风)___1___ was that?

FJ: In north Australia, in Normanton. That’s where I live.

NW: What did you do when the cyclone arrived?

FJ: We all stayed inside, in the basement, because That’s the safest place. We could hear the ___2___ coining closer and closer. The noise was awful. At one point there was a really loud noise. I thought:That’s it! Ifs going to destroy the house!' I was shaking.

NW: And what happened after the cyclone?

FJ: There were terrible floods. More than 360 millimeters of rain came down in just twenty-four hours. The army had to bring food and water to the whole area by plane and helicopter. he___3___thing was that waves from the coast and rivers flooded the land and carried three crocodiles(鳄鱼) to near my house! One of my neighbors hit a crocodile with his car — it was 1.6 metres long.

NM: Really? That’s unbelievable! So is everything back to normal again now?

FJ: Not really. The floods have gone, but they destroyed a lot of homes and farms. Ifs going to cost at least 110 million dollars to___4____ the damage.

NW: So is the weather ____5____ this bad?

FJ: No, but this summer was very hot. If it stays hot, there will probably be another cyclone. All the experts say that the extreme temperatures and heavy rain will only ___6___ because of climate change.

(  ) 1.A.What    B.Where   C.Why    D.How

(  ) 2.A.plane    B.soldiers   C.storm   D.animals

(  ) 3.A.strangest      B.easiest   C.most exciting  D.most powerful

(  ) 4.A.cause   B.suffer   C.protect   D.repair

(  ) 5.A.exactly       B.usually   C.actually   D.especially

(  ) 6.A. drop   B.last   C.increase   D.pour

(2)

Choose the words or expressions and complete the passage

The Science Museum in London

Welcome to the most friendly museum in London. In most museums, there’s no shouting and no running, and you mustn’t touch anything. But the Science Museum is ___1___...it’s noisy! People talk about what they can see and do here, and there are some very noisy machines as well. If you want answers to all your questions about science, it is the right place for you.

On the ground floor is the Launchpad. It is my favourite room because there are lots of physics experiments.___2___, if you want to fill a bag with sand, you have to control a kind of truck on wheels and move it into the correct place. You can also find out how we travel into space and back again.

Upstairs is the___3___ Room. There you can compare the speed of different animals withyour own. When you hear a noise you push a key. If you aren’t fast enough, the lion catches you! I’m faster than all my friends, but the lion still catches me.

I also like to visit the other rooms on the second and third floors. You can ___4___maths, physics and chemistry as well as communication and the environment. In one room you can know how X-ray let you see inside your body. And in another room you can ___5___ find out how they dig coal from the ground and use it to create energy.

The Science Museum is interesting for people of all ages, hut you should follow the ___6___.You cannot take photos, but if you want postcards you can buy them in the shop. The museum is free to enter, so you can go in for a few minutes or stay all days. Ifs open every day from 10 a.m. to 6 p.m. So if you ever go to London, make sure you visit the Science Museum. It's my favourite museum in the whole world!

(  ) 1. A. important  B. different  C. necessary  D. strange

(  ) 2. A. However  B. In fact   C. For example D. What’s more

(  ) 3. A. Culture and Nature    B. Culture and Space

C. Human and Space     D. Human and Nature

(  ) 4. A. look for   B. learn about  C. find out   D. think of

(  ) 5. A. even   B. still   C. just   D. only

(  ) 6. A. orders   B. notes   C. rules   D. steps

(3)

Beautiful beaches or swimming pools are exciting places for relaxation. However, an accident, such as a drowning accident, can spoil all the fun and pleasure of an enjoyable swimming experience. According to the World health Organization (世界卫生组织), drowning (溺水) is the third leading cause of unintentional (无意的) injury death worldwide, Drowning occurs more___1___in males and the young.  Surveys show that10% of children under 5 have experienced a situation with a high risk of drowning.

If you see someone drownig, speedis very important. Once you get him out of the water, if he isn’t ___2___, you have four minutes before his brain is completely destroyed. Support his neck, lift his head back and press his chin upwards. This stops the tongue clogging (堵塞)the airway in the throat and is something enough to get him breathing again. If that doesn’t work, start mouth-to-mouth breathing. Press his nostrils(鼻孔)together with your fingers. Open your mouth and take a deep breath. Blow into his lungs until his chest ___3___, then remove your mouth and watch his chest fall. Repeat twelve times a minute. Keep doing until help arrives.

To bring a child back to ___4___, keep your lips around his mouth and nose and gently blow into his mouth. Give the first four breaths asquickly as possible to fill the blood with oxygen. If , in spite of your efforts, he starts turning a blue-grey  color , you can feel no pulse(脉搏).Then pressing is the ___5___ chance of saving his life.

With arms straight, rock (摆动)forwards , pressing down on the lower half of the breastbone.

Don’t be too hard or you may break a rib(肋骨).Check how effective you are ___6___ seeing if his color improves or his pulse becomes independent to your chest pressing. If this happens, stop the pressing. Otherwise continue until rescue arrives.

To prevent drowning accidents, we must ensure the safety of the tourists by providing people with qualified and trained lifeguards and first aid equipment that can be used during an emergency.

(  ) 1. A. repeatedly  B. frequently  C. quickly  D. punctually

(  ) 2. A. dying   B. beating  C.swimming  D. crying

(  ) 3. A. stops   B. moves   C. warms   D. rises

(  ) 4. A. sense   B. life   C. safety   D. feeling

(  ) 5. A. best   B. first   C. latest   D. last

(  ) 6. A. towards   B. on   C. with   D. by

(4)

Choose the best words and complete the passage.

Everyone is forgetful,but as we age, we start to feel like brains are showing a bit and that can be upsetting. ___1___, research shows there is a lot you can do to avoid(避免)those moments.

1.Focus on the ___2___.

People who regularly made plans and looked forward to the coming events had a 50 percent reduced enhance of Alzheimer’s disease（早老性痴呆症），according to a recent study. But don’t ___3___ if your plan isn’t filled with life-changing events. Something as simple as settinga goal to have weekly coffee date with a friend will do. There’s proof that people who have a purpose in life or who are working on long or short-term goals appear to do better. That is, keep your brain looking forward.

2.Go for a walk.

Raised glucose（葡萄糖）levels can harm the area of the brain that helps you form memories. ___4___ activity can help get blood glucose down to normallevels. In fact, exercise produces chemicals that are good for your brain.___5___, when you take care of your body,you take care of your brain.

3.Learn something new.

Take a French class online, join a drawing club, or learn to play cards. A study found that mental stimulation（大脑刺激）limits the weakening effects of aging on memory and the mind. But what is best for your brain is that you keep physically ___6___ at the same time when learning something new. It can be something like learning gardening, or going dancing with your friends.

(  ) 1 .A. Sadly   B. Seriously  C. Luckily  D. Finally

(  ) 2. A. future   B. brain   C. behavior  D. illness

(  ) 3.A. argue   B. worry   C. frighten  D. hesitate

(  ) 4.A. Physical   B. Public   C. Powerful  D. Pleasant

(  ) 5.A. At last   B. In addition  C. So far   D. In other words

(  ) 6.A. fit    B. active   C. safe   D. tired

Keys: (1) BCADBC   (2) BCDBAC   (3)BADBDD   (4) CABADB