A．用英语完成下面表格中每个阿拉伯数字的基数词和序数词。
| 3 | 20 | ||||
| 5 | 32 | ||||
| 8 | 90 | ||||
| 12 | 100 | ||||
| 15 | 206 |
B．用括号内所给数词的适当形式填空。
1．At the beginning of the _____ （twenty） century，the world's population was about 1，700 million．
2．Liu Zhong is in his _____ （three）year at No．1M iddle School．
3．Miss Chen said to her students，“We are going to learn the _____ （twenty-one）lesson today．”
4．I have read the _____ （two）passage twice．
5．There are _____ （eighteen）floors in the building and Paul lives on the _____ （eighteen）floor．
C．根据句意，选用适当的介词填空。
1．We were playing _____ No．1Middle School at that time．
2．The temperature will stay _____ zero in the day time，but at night it will fall _____ zero again．
3．We can't live _____ water or air．
4． _____ a scientist，he or she must be strict with himself or herself．
5．Let's pull the boat out _____ the water．
6．She sang _____ the opening of the 1996 Olympic Games in Atlanta．
7． _____ his surprise he found the girl was blind．
8．Multiply 5 _____ 3and you can get 15．
9．on ／with ／to
a．I aGREe _____ what you say about him．
b．Please aGREe _____ this arrangement（安排）．
c．I'm sorry we can't aGREe _____ this．
10．to ／for
a．Thanks a lot _____ helping me with my English．
b．Thanks _____ your help，I finished my work on time．
11．on ／at
a．There are many different kinds of animals _____ the farm．
b．They walked a long way and arrived _____ the farm．
12．of ／for
a．Is it important _____ us to learn English well？
b．It is kind _____ you to help me．
13．since ／for
a．He's been there _____ over two years．
b．He's been there _____ two years ago．
14．in ／like ／on
a．Your teacher will give you a piece of paper with the answer _____ it．
b．We may play the game with a ball _____ this．
c．But I think the ones with nuts _____ them are nicer．
15．at ／to ／for
a．The milk is very good _____ the children．
b．Girls are usually good _____ learning languages．
c．Miss Yu is good _____ everyone in the class．
16．through ／across ／over
a．Can you swim _____ the river alone？
b．They went _____ the forest last night．
c．The plane flew _____ a line of mountains in the southeast．
17．at ／on ／in
a．Mary usually reads English _____ night．
b．Mary often reads English _____ the night．
c．Mary left school _____ the night of May 4．
18．to ／in ／on
a．Taiwan is _____ the southeast of China．
b．England lies _____ the west of France．
c．Hunan is _____ the south of Hubei．
19．among ／between
a．The girl walked _____ her father and mother．
b．Beijing is _____ the GREatest cities of the world．
20．in ／by ／with
a．The old woman had to make money _____ selling vegetables．
b．He passed me a letter written _____ English．
c．I saw the accident happen _____ my own eyes．
D．找出下列各句的错误，并加以改正。
1．Father Christmas is based with a real person in history． _____
2．Mary will go to see a film at tomorrow night． _____
3．There will not be enough space even to stand on the earth． _____
4．He doesn't know what subject he should talk． _____
5．The old are taken good care in China． _____
Key: A．
| 3 | three | third | 20 | twenty | twentieth |
| 5 | five | fifth | 32 | thirty-two | thirty-second |
| 8 | eight | eighth | 90 | ninety | ninetieth |
| 12 | twelve | twelfth | 100 | a/one hundred | a/one hundredth |
| 15 | fifteen | fifteenth | 206 | two hundred and six | two hundred and sixth |
解析：基数词变序数词口诀：
基变序，有规律，结尾要加-th；一、二、三，特殊记，结尾分别t，d，d（one→first，two→second，three→ third）；八减t（eight→eighth），九减e（nine→ninth），f要把ve替（five→fifth，twelve→twelfth）；ty结尾的词，先变y为ie，再加th（twenty→twenieth，forty→fortieth）；若是逢到几十几，只变个位就可以（twenty-one→ twenty-first，one hundred and fifty-nine→one hundred and fifty-ninth）。
B．1．twentieth 2．third 3．twenty-first 4．second 5．eighteen，eighteenth
C．
1．against。play against意为“与……比赛”。
2．above；below。表示温度在多少度以上用above，多少度以下用below。
3．without。without在该句意为“没有”“缺少”，表示条件。
4．As。as在该句意为“作为”。
5．of。
6．at。at the opening of．．．意为“在……的开幕式上”。
7．To。to one's surprise意为“令……感到奇怪”。
8．by。multiply Aby B意为“A乘以B”。
9．a．with b．to c．on。aGREe with意为“同意某人的意见／所说的事项”，其后多接人的名词、代词或what从句；agree to意为“同意或赞成……意见”，其后多接“建议、安排、决定”等名词；agree on意为“（双方）就……取得一致意见或在……方面意见一致”。
10．a．for b．to。Thanks（a lot）for意为“因……而感激”；thanks to意为“多亏……”。
11．a．on b．at。on the farm意为“在农场”，属习惯搭配；但表达“到达农场”要说reach the farm ／get to the farm ／arrive at the farm。
12．a．for b．of。“It's＋adj．＋ of／for sb．to do sth．”为不定式的两种复合结构。何时用of或for引出不定式的行为者，主要取决于其前的形容词：若形容词是描述不定式行为者的性格、品质（如kind，good，clever，polite等）时，用介词of；若形容词仅仅描述事物（如important，hard，easy，dangerous， possible等），则用介词for。
13．a．for b．since。for和since引出的时间状语均可与完成时连用，但for须接“时间段”，since须接“时间点”。
14．a．on b．like c．in。“with ＋宾语＋介词短语”是个常用结构，其中介词的选用要依据句意及逻辑关系。
15．a．for b．at c．to。be good for“对……有益”，其主语多为物或非谓语短语；be good at“擅长”；be good to“对……友好”。
16．a．across b．through c．over。across意为“横穿”，表动作是从某物表面进行的；through意为“穿过，通过”，表示从某物内部或一定范围内通过；over表“通过”时意指在空间上“越过”。
17．a．at b．in c．on。at表时间时多指“时间的一点”，还用于固定搭配，如at noon ／night／the weekend ／Christmas／Easter（在复活节）；on则表示“某日”或具体的某日上午、下午或晚上；in则用于表示一段时间。
18．a．in b．to c．on。此三个介词在表示方位时，in表示在某一范围之内，即包含关系；to表示在某一范围之外，即相离关系；on则表示与某地的毗邻（相接），即相切关系。
19．a．between b．among。表示“在……之间”，between通常用来表示“两者之间”，只要构成双方关系，则不论双方数目多少，均用between；而among后接的人或物必须是三者或三者以上，而且视为一个整体。
20．a．by b．in c．with。in通常表示“用某种语言、材料或方法”；by则表示“用……手段或方法”，其后一般跟V-ing短语或抽象化的可数名词，名词前不用冠词；with则表示“借助于某一具体的工具、材料或人体器官”。
D．
1．with→on。be based on是习惯搭配，意为“以……为基础”。
2．去掉at。表示时间的名词前有one， any，each，every，some，all，this，that，next，last，yesterday， tomorrow等词时，其前不再用任何介词。
3．to stand→to stand in。当不定式作定语与所修饰的名词有动宾关系或不定式作状语与句子主语有逻辑上的动宾关系时，若该不定式为不及物动词时，必须加上适当的介词。如：The ice is thick enough to skate on．
4．talk→talk about。what（subject）引导宾语从句，是当动词的宾语，而talk是不及物动词，故用talk about表示“谈论”。
5．care后加of。take care（good）of意为“照顾”“照看”；在被动语态中，短语动词中的介词不能遗漏
