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九上英语Unit 5基础知识练习
1. Many students ______ chances to show themselves in class because the class size is too big.
A. don't give B. aren't given
C. haven't given D. won't give
2. It is known that more and more foreigners are learning Chinese culture now.
A. politely B. loudly C. widely
3. Hangzhou _______ as the City of Silk. Tourists like shopping for silk there.
A. knows B. is known C. was known D. will be known
4. —Nowadays lots of products from China are very popular in the world.
—Yeah! Many people can hardly avoid ____ products made in China.
A. to buy B. buying C. bought D. buy
5. —I didn't see Molly last week.
—________ I know, she has gone to Singapore.
A. As far as B. As long as C. As soon as D. As often as
6. Mr. Brown always makes his class _______ and keeps his students ______ in his class.
A. alive; interesting B. lively; interesting
C. alive; interested D. lively; interested
7. Each year quite a lot of food ________ around the world. It's really time for us to do something.
A. was wasted B. is wasted C. wasted D. will be wasted
8. —China is getting better and better at making high technology products.
—That's right. People around the world can hardly avoid ______ these products made in China.
A. to buy B. not to buy C. buying D. not buying
9. Mobile phones __________for communicating(交流) with others.
A. is used B. uses C. was used D. are used
10. Look at the picture. The top five TV plays ________ in it.
A. list B. are listed C. will list D. will be listed
11.—I think washing hands every day is good 　　　　our health.
—Yes, I agree 　　　　you.
A. to; to B. with; to C. for; with D. at; with
12.—Mike, please turn down the music. 　　　Dabao　　　 Erbao are sleeping.
—Sorry, I'll do it right away.
Neither; nor B. Either; or C. Both; and D. Not only; but also
13. —I don't know how to use the APP Ding Talk.
—Ask Jimmy for help. He has lots of 　　　in doing it.
A. success B. courage C. experience D. effort
14. When Chen Xiarong left for Wuhan to help,her 　　　　daughter cried and gave her a hug.
A. 6-year old B. 6-year-old C. 6 years old D. 6 year old
15.—I didn't see Li Ran last week.
—　　　 I know, she has gone to Singapore.
A. As far as B. As long as C. As soon as D. As often as
16.—Every year, millions of plastic bottles 　　　away, polluting the land and waterways.
—That's terrible. We should protect our environment.
A. threw B. are thrown C. have thrown D. were thrown
17.The plane quickly 　　　the air and disappeared.
A. turned into B. covered with C. sent out D. rose into
18. —Good news! The Underground Line 1 in Nantong 　　　to come into service oon.
—That's great! Transport will become much easier for us.
will be expected B. was expected
C. expects D. is expecting
19.　　　 you ask someone for help, find out whether he is the right person for your problem.
A. Since B. After C. Before D. Unless
20.—What a sunny day! Why not go cycling —　　　　.
A. No, I don't mind B. You'd better not C. That sounds interesting D. It's my pleasure
21.The dress is made by ______ hand and it is made of _____ silk.
A./; a B. the; a C. /; / D. the; /
22.Each year quite a lot of food around the world. It's really time for us to do something.
A.was wasted B.is wasted
C.wasted D.will be wasted
23.She finds _______ interesting that many foreigners are interested in Chinese.
A．it B．this C．that D．one
24.Well,___ I know,more and more students like playing computer games. A.as far to B.as much as C.as far as D.as long as
25.I think the wine is_________ grapes.
A.made of B.made from C.made into D.made up of
26.No matter_____ ,she is always with her family at weekends.
A.how busy she is B.how busy is she
C.how is she busy D.how she is busy
27.Every day too much water in the world. People should save it.
A. wastes B. wasted C. is wasted D. was wasted
28.Kunming is famous its nice weather. I will go there to spend the summer holiday,
A. in B. as C. for D. with
29.They went to the open air and sky lanterns.
A. sent out B. came out C. put out D. looked out30
30.No matter I say, he doesn't care.
A.how B.what C.where D.that
31.In our country, red lanterns are seen__ symbols of happiness and good wishes.
A. from B. as C. to D. for
32. As we know, we usually use _______ to cut cloth into pieces.
A. forks B. chopsticks C. plates D. scissors
33. My sister spent most of her pocket money _____ fine clothes.
A. buy B. bought C. to buy D. buying
34. We shouldn’t laugh at people_____. They need help and we should give them a hand.
A. in trouble B. in public C. in person D. in silence
35. You should try the temperature of the hot water ______ the kid drinks it. Everybody knows hot water can burn kids.
A. before B. after C. although D. unless
36.Look at the walls over there. They are ________ some wonderful paintings. The owner of the house must love painting very much.
A. busy with B. tired of C. seen as D. covered with
37.—Are Jiangsu and Zhejiang famous for silk
—I think so. ________ I know, more than half of the silk in China is produced in Jiangsu and Zhejiang.
A. As long as B. As far as C. As many as D. As little as
38.These old newspapers can be ________ some beautiful and creative clothes.
A. turned on B. turned off C. turned in D. turned into
39.—Was that fishbowl made ________ Xi'an
—Yes. And it's made ________ glass.
A. from; of B. in; of C. by; in D. in; from
40.—Those people in earthquake areas are ________. Let's do something to help them.
—Maybe we can hold a charity show to raise money for them.
A. in trouble B. in person C. in fact D. in public
41.If you have trouble ________ the way back to your hotel, you can ask the police for help.
A. find B. to find C. found D. finding
42.We can use some different ________ to make chopsticks, for example, bamboo.
A. colors B. sizes C. shapes D. materials
43.Many trees ________ every year to make the environment better and better.
A. plant B. were planted C. are planted D. have planted
44.The computer is one of the most helpful inventions and it is ________ used in different fields.
A. widely B. hardly C. quietly D. carefully
45.It took the policemen three days ________ the missing boy. The boy's parents were thankful to them.
A. find B. finding C. to find D. found
46.A mirror is used for ___ at ourselves .
A.look. B.looked C.to look D.looking
47.It is difficult for some people ___ paper napkins ,it wastes too much wood
A. to stop to use B.stop using C.to stop using D.stopping using
48.---Does she like to sing English songs ---Yes, she ___ to sing English songs in her room
A.often,does B.is often heard C.often hears D.is often does
49.Each year ,quite a lot of food ___ around the world ,It’s time for us to do something to stop it
A.was waste B.is wasted C.wasted D.will be wasted
50.Don’t worry ,Your package __here until you come back,so enjoy shopping here
A.will keep B.has kept C.will be kept D.has been kept
51.Half of the work ___ by now . we are getting close to success.
A.has finished B.has been finished C.have finished D.have been finished
52.Today lots of information can ____ online .we can easily get what we want very soon.
A. receive B. be received C. is received D. receiving
53.Since 2000,Jingmen has become a new city .Everything __ a lot
A. is changed B.was changed C.had changed D. has changed
54.No matter __ you say ,I would not believe you
A. what B. how C.where D. when
55.. --- Can I smoke in the library --- Sorry. It’s not_____ .
A. promised B. realized C. allowed D. reminded
56.In order to find a job, I ___ the information on the Internet
A.ask for B.found out C.sent out D.heard from
57.Driving after drinking wine ___ in China , Traffic accidents are caused because of it
A.allows B.doesn’t allow C. is allowed D.isn’t allowed
58.Altough he is old ,he is ___ and strong
A.living B. alive C.lively D. lovely
59.The table is so dirty ,why don’t you ___ the table __ a piece of cloth
A. put on B. cover ,with C. turn, into D. take, from
60.This pair of shoes ___ hand and it ___ very comfortable
A.is made with,is felt B.are made from ,is felt
C.are made of ,feels D.is made by ,feels
61.Li Na is ___ her success in tennis
A.famous as B.know for C.known as D. well-known for
62.Salt is __ in Jiangsu and then sent to different parts of China
A. made B.produced C.grown D.planted
63.Paper cutting ___ around for over 1500 years
A..is B.was C.were D.has benn
64.They spent several hours ___ everything that is required doing
A.complete B. completing C.to complete D. completed
65.On that day ,my best friends and I lit the laterns and watched them __ the sky with our wishes
A.rise into B.rised into C, to rise into D.rising
二、用所给单词的适当形式填空
1.During our holidays, we should avoid 　　　(stay) up at night and oversleeping in the morning.
2. Because of COVID-19,families and friends are strongly advised to use serving 　 (chopstick) and spoons when eating together.
3.—Confucius Institutes (孔子学院) have been set up in many other countries.
—Yes. Chinese is 　　　(wide)spoken in those countries. I am proud of that as a Chinese person.
4.The Chinese company HUAWEI is always trying to 　 (produce)the best smartphones all by itself.
5.The Communist Party of China(中国共产党) has 　　　(it) 100th anniversary this year.
6..The number of Chinese 　　　(competitor) taking part in other world-renowned(世界知名的) marathons has risen.
7.The food should　　 　 (heat) before you eat it.
8.Chinese New Year is a 　　(celebrate) marking the end of winter and the beginning of spring.
9.The classroom (clean) by the students every day.
10.My hometown is greener now. More and more trees (plant) every spring.
11.---I called you last night but there was no answer –Sorry .I ___(have) dinner at my friend’s
12.—Is this jacket yours –No,I think it ____(belong) to Marcia
13.A talk on science _____(give) in our school next Sunday
14.He kept on ____ (talk) until the class was over
15.A new railway ____(build) in this area and people can go to different places for convenience 16.Children under 18 ___(not allow) to drive a car .it’s too dangerous
17.I must be careful next time I must avoid _____( make) the same mistakes again
18.___ we ___(produce) tea in many different places in China
19.The ____(compete) at the festival come from Germany and France
20.The students ____(ask) to be on time every day
21.It's (say) that the pianist will come to our city next week.
22.Smoking (not allow) in public.
23.The (leaf) on the tree are green in spring.
三、根据汉语或首字母提示写出单词
1.The old couple have two sons and both of them are (邮递员).
2.Visitors to Yangzhou can enjoy a bite of (当地的) dishes at Yechun Teahouse.
3.I prefer T-shirts made of (棉) because they make me feel more comfortable.
4. In autumn, l fall down and it makes an amazing scene.
5.Please be careful.The bottle is made of g . It's easy to break.
6.When the t lights are red, we must stop crossing the road.
7.—Many countries have found the mutated (变异的) (类型) of the virus.
—It's terrible.I think we should get COVID-19 vaccine booster shots(加强针) as soon as possible.
8.Some companies that provide AI education have attracted many (国际的)students for China.
9.If lots of people share the work,it will make the work easier to (完成).
10. (剪刀)are usually used for cutting paper or cloth.
11.He has travelled ___ around the world and he has learned a lot about the world (广泛地)
12.The shirt is made of ___ （棉花）and it feels soft
13.This kind of plant has green ___(叶子) throughout the year
14.She tried to ____(避免) answering my questions and she was too shy to say anything
15.Put an ad in the ____(当地) paper to sell your car .It’s very convenient
16.Most of the earth’s ____(表面) is covered by water
17.---Where do these people work —In the post office, they are _____(邮递员).
18.There is always a lot of ___(车辆) at rush hours
19.What __(材料)is this kind of dress made of It is made of silk
20.Chinese traditional art has its own __ (形式). They are in style
21.Look, there are a number of colorful (气球)in the sky.
22.-What are you busy doing
-I'm writing a d .To me, it's a good way of talking to myself and keeping my secret.But very few people these days love to do so.
23.I was late for school because of the t jam this morning.
24.Yiwu Commodity F is held every year, which helps the city to become more popular.
25. E protection has become a global issue and requires a global solution.
26.This May Day holiday, My parents will take me to see how tea is picked and p. in Meijawu, Hangzhou.
27.You must (完成) your tasks on time, or your teacher will be angry.
28.These (生气勃勃的) characters are all from Chinese folk stories.
29.Let's cut the paper in half with a pair of (剪刀) first.
30.The weather was so hot that the farmer could feel the (热) of the sun on his back.
31.Does anyone live in that (玻璃) house
32.North America (生产) good wheat.
33.All kinds of things are sold in this f .
四、按要求完成句子
1.Cotton is grown in my hometown.(改为一般疑问句)
cotton in your hometown
2.These chopsticks are made in China. (对画线部分提问)
these chopsticks
3.They plant trees in spring every year. (改为被动语态)
Trees by them in spring every year.
4.Cindy’s new blouse is made of silk. (对画线部分提问)
Cindy’s new blouse
5.They are allowed to watch this show without their parents.(改为否定句)
They watch this show without their parents.
6.I think that yellow blouse is very beautiful.(改为否定句)
I that yellow blouse very beautiful.
一、单项选择
答案：B
解析：students 和 give 之间是被动关系，即 “学生被给予机会”，应用被动语态，其结构是 “be + 过去分词”，所以选 B。
答案：C
解析：politely 礼貌地；loudly 大声地；widely 广泛地。“be widely known” 表示 “被广泛知晓”，符合语境，所以选 C。
答案：B
解析：杭州作为 “丝绸之城” 被人们知晓，是一种客观事实，用一般现在时的被动语态，结构为 “be + 过去分词”，所以选 B。
答案：B
解析：avoid doing sth. 是固定搭配，意为 “避免做某事”，所以选 B。
答案：A
解析：as far as I know 是固定短语，意为 “据我所知”，符合语境，所以选 A。
答案：D
解析：alive 活着的；lively 生动的，活跃的；interesting 有趣的，常修饰物；interested 感兴趣的，常修饰人。make + 宾语 + 形容词（作宾语补足语），class 用 lively 修饰表示课堂生动；keep sb. interested 表示让学生保持兴趣，所以选 D。
答案：B
解析：food 和 waste 之间是被动关系，且根据 Each year 可知是一般现在时的被动语态，结构为 “be + 过去分词”，所以选 B。
答案：C
解析：avoid doing sth. 是固定搭配，意为 “避免做某事”，句意为 “世界各地的人们几乎难以避免购买中国制造的产品”，所以选 C。
答案：D
解析：mobile phones 是复数，与 use 之间是被动关系，意为 “被用于……”，且描述的是客观事实，用一般现在时的被动语态，结构为 “be + 过去分词”，所以选 D。
答案：B
解析：TV plays 和 list 之间是被动关系，即 “电视剧被罗列”，用被动语态，根据语境用一般现在时的被动语态，所以选 B。
答案：C
解析：be good for... 对…… 有好处；agree with sb. 同意某人的观点，都是固定搭配，所以选 C。
答案：C
解析：neither...nor... 既不…… 也不……；either...or... 要么…… 要么……；both...and... 两者都；not only...but also... 不但…… 而且……。根据 “are sleeping” 可知是两个人都在睡觉，所以选 C。
答案：C
解析：success 成功；courage 勇气；experience 经验；effort 努力。根据 “Ask Jimmy for help” 可知他有很多做这件事的经验，所以选 C。
答案：B
解析：“6-year-old” 是复合形容词，用于修饰名词 daughter，year 用单数形式，所以选 B。
答案：A
解析：as far as I know 是固定短语，意为 “据我所知”，所以选 A。
答案：B
解析：plastic bottles 和 throw 之间是被动关系，且根据 Every year 可知用一般现在时的被动语态，结构为 “be + 过去分词”，所以选 B。
答案：D
解析：turned into 变成；covered with 覆盖；sent out 发出；rose into 升入。飞机升入空中，用 rose into，所以选 D。
答案：A
解析：根据 “to come into service soon” 可知是将要投入使用，用一般将来时的被动语态，结构为 “will + be + 过去分词”，所以选 A。
答案：C
解析：since 自从；after 在…… 之后；before 在…… 之前；unless 除非。在向别人求助之前，先弄清楚他是否适合解决你的问题，所以选 C。
答案：C
解析：A 项意为 “不，我不介意”；B 项意为 “你最好不要”；C 项意为 “那听起来很有趣”；D 项意为 “不客气”。根据 “Why not go cycling ” 可知回应提议，C 选项符合语境，所以选 C。
答案：C
解析：by hand 是固定短语，意为 “手工”，中间不加冠词；silk 是不可数名词，也不用冠词，所以选 C。
答案：B
解析：food 和 waste 之间是被动关系，根据 Each year 可知用一般现在时的被动语态，结构为 “be + 过去分词”，所以选 B。
答案：A
解析：find it + 形容词 + that 从句，it 作形式宾语，真正的宾语是 that 引导的从句，所以选 A。
答案：C
解析：as far as I know 是固定短语，意为 “据我所知”，所以选 C。
答案：B
解析：be made of 由…… 制成（能看出原材料）；be made from 由…… 制成（看不出原材料）；be made into 被制成……；be made up of 由…… 组成。酒由葡萄制成，看不出原材料，所以选 B。
答案：A
解析：no matter how 引导让步状语从句，从句要用陈述句语序，即 “no matter how + 形容词 / 副词 + 主语 + 谓语”，所以选 A。
答案：C
解析：water 和 waste 之间是被动关系，根据 Every day 可知用一般现在时的被动语态，结构为 “be + 过去分词”，所以选 C。
答案：C
解析：be famous for 因…… 而著名，是固定搭配，所以选 C。
答案：A
解析：sent out 发出，放飞；came out 出来；put out 扑灭；looked out 向外看。放飞孔明灯用 sent out，所以选 A。
答案：B
解析：no matter what 无论什么，引导让步状语从句，在从句中作 say 的宾语，所以选 B。
答案：B
解析：be seen as 被看作，是固定搭配，所以选 B。
答案：D
解析：forks 叉子；chopsticks 筷子；plates 盘子；scissors 剪刀。根据 “cut cloth into pieces” 可知用剪刀，所以选 D。
答案：D
解析：spend + 时间 / 金钱 + (in) doing sth. 是固定搭配，意为 “花费…… 做某事”，所以选 D。
答案：A
解析：in trouble 处于困境中；in public 在公众场合；in person 亲自；in silence 沉默地。根据 “They need help and we should give them a hand” 可知是处于困境中的人，所以选 A。
答案：A
解析：before 在…… 之前；after 在…… 之后；although 尽管；unless 除非。在孩子喝水之前试水温，所以选 A。
答案：D
解析：be busy with 忙于；be tired of 厌烦；be seen as 被看作；be covered with 覆盖着。墙壁上覆盖着画，所以选 D。
答案：B
解析：as long as 只要；as far as 就…… 而言，至于；as many as 多达；as little as 少至。“as far as I know” 意为 “据我所知”，符合语境，所以选 B。
答案：D
解析：turned on 打开；turned off 关闭；turned in 上交；turned into 变成。旧报纸可以变成衣服，所以选 D。
答案：B
解析：be made in 在…… 地方制造；be made of 由…… 制成（能看出原材料）；be made by 由……（人）制造；be made from 由…… 制成（看不出原材料）。鱼碗在西安制造，用 be made in；由玻璃制成，能看出原材料，用 be made of，所以选 B。
答案：A
解析：in trouble 处于困境中；in person 亲自；in fact 事实上；in public 在公众场合。根据 “Let's do something to help them” 可知是处于困境中的人，所以选 A。
答案：D
解析：have trouble (in) doing sth. 是固定搭配，意为 “做某事有困难”，所以选 D。
答案：D
解析：colors 颜色；sizes 尺寸；shapes 形状；materials 材料。根据 “to make chopsticks, for example, bamboo” 可知是制作筷子的材料，所以选 D。
答案：C
解析：trees 和 plant 之间是被动关系，根据 Every year 可知用一般现在时的被动语态，结构为 “be + 过去分词”，所以选 C。
答案：A
解析：widely 广泛地；hardly 几乎不；quietly 安静地；carefully 仔细地。电脑被广泛应用于不同领域，所以选 A。
答案：C
解析：It takes sb. some time to do sth. 是固定句型，意为 “做某事花费某人多长时间”，所以选 C。
答案：D
解析：be used for doing sth. 是固定搭配，意为 “被用于做某事”，所以选 D。
答案：C
解析：It's difficult for sb. to do sth. 是固定句型，意为 “对某人来说做某事是困难的”；stop doing sth. 停止做某事，所以选 C。
答案：B
解析：hear sb. do sth. 变为被动语态是 sb. be heard to do sth.，根据语境用一般现在时的被动语态，所以选 B。
答案：B
解析：food 和 waste 之间是被动关系，根据 Each year 可知用一般现在时的被动语态，结构为 “be + 过去分词”，所以选 B。
答案：C
解析：package 和 keep 之间是被动关系，根据 until 引导的时间状语从句可知用一般将来时的被动语态，结构为 “will + be + 过去分词”，所以选 C。
答案：B
解析：work 和 finish 之间是被动关系，half of the work 作主语，谓语动词用单数，根据 by now 可知用现在完成时的被动语态，结构为 “has + been + 过去分词”，所以选 B。
答案：B
解析：information 和 receive 之间是被动关系，用被动语态，情态动词 can 后用 be received，所以选 B。
答案：D
解析：根据 Since 2000 可知用现在完成时，其结构为 “have/has + 过去分词”，所以选 D。
答案：A
解析：no matter what 无论什么，引导让步状语从句，在从句中作 say 的宾语，所以选 A。
答案：C
解析：promised 承诺；realized 意识到；allowed 允许；reminded 提醒。图书馆不允许吸烟，所以选 C。
答案：B
解析：ask for 请求；found out 查明，弄清楚；sent out 发出；heard from 收到…… 的来信。为了找工作，在网上查明信息，所以选 B。
答案：D
解析：Driving after drinking wine 和 allow 之间是被动关系，根据语境用一般现在时的被动语态，结构为 “be + 过去分词”，且表示否定，所以选 D。
答案：C
解析：living 活着的，强调生存状态；alive 活着的，侧重生命特征；lively 活泼的，生气勃勃的；lovely 可爱的。根据 “and strong” 可知是活泼有力，所以选 C。
答案：B
解析：put on 穿上；cover...with... 用…… 覆盖……；turn...into... 把…… 变成……；take...from... 从…… 拿走……。用布盖桌子用 cover...with...，所以选 B。
答案：D
解析：be made by hand 手工制作；feel 作系动词，后接形容词，无被动语态，且主语是 This pair of shoes，谓语动词用单数形式，所以选 D。
答案：D
解析：be famous as 作为…… 而出名；be known for 因…… 而出名；well-known for 因…… 而出名，符合语境，所以选 D。
答案：B
解析：made 制作；produced 生产；grown 种植（植物）；planted 种植（植物）。盐是被生产出来的，所以选 B。
答案：D
解析：根据 “for over 1500 years” 可知用现在完成时，其结构为 “have/has + 过去分词”，主语 Paper cutting 是单数，所以选 D。
答案：B
解析：spend + 时间 + (in) doing sth. 是固定搭配，意为 “花费时间做某事”，所以选 B。
答案：A
解析：watch sb./sth. do sth. 看到某人 / 某物做某事（强调动作的全过程），所以选 A。
二、用所给单词的适当形式填空
staying：avoid doing sth. 是固定搭配，意为 “避免做某事”，所以填 staying。
chopsticks：chopstick 常用复数形式，表示 “筷子”，所以填 chopsticks。
widely：修饰动词 spoken 用副词，wide 的副词形式是 widely，所以填 widely。
produce：try to do sth. 是固定搭配，意为 “尽力做某事”，所以填 produce。
its：此处表示 “它的”，修饰名词 anniversary，用形容词性物主代词，it 的形容词性物主代词是 its，所以填 its。
competitors：根据后面的 taking part in 可知是指参加比赛的人，competitor 是可数名词，用复数形式表示很多参赛者，所以填 competitors。
be heated：food 和 heat 之间是被动关系，should 后用动词原形，所以填 be heated。
celebration：根据前面的 a 可知用名词形式，celebrate 的名词是 celebration，所以填 celebration。
is cleaned：classroom 和 clean 之间是被动关系，根据 every day 可知用一般现在时的被动语态，结构为 “be + 过去分词”，所以填 is cleaned。
are planted：trees 和 plant 之间是被动关系，根据 Every spring 可知用一般现在时的被动语态，结构为 “be + 过去分词”，所以填 are planted。
was having：根据 last night 可知是过去的某个时间正在做某事，用过去进行时，其结构为 “was/were + 现在分词”，主语是 I，所以填 was having。
belongs：主语 it 是第三人称单数，句子是一般现在时，所以填 belongs。
will be given：talk 和 give 之间是被动关系，根据 next Sunday 可知用一般将来时的被动语态，结构为 “will + be + 过去分词”，所以填 will be given。
talking：keep on doing sth. 是固定搭配，意为 “继续做某事”，所以填 talking。
is being built：railway 和 build 之间是被动关系，根据语境用现在进行时的被动语态，结构为 “is/are + being + 过去分词”，所以填 is being built。
aren't allowed：children 和 allow 之间是被动关系，根据语境用一般现在时的被动语态，结构为 “be + 过去分词”，所以填 aren't allowed。
making：avoid doing sth. 是固定搭配，意为 “避免做某事”，所以填 making。
Do；produce：根据语境是一般疑问句，主语是 we，谓语动词是 produce，用助动词 Do 开头，所以填 Do；produce。
competitors：根据后面的 come from 可知是指参赛的人，用 competitor 的复数形式，所以填 competitors。
are asked：students 和 ask 之间是被动关系，根据 every day 可知用一般现在时的被动语态，结构为 “be + 过去分词”，所以填 are asked。
said：It's said that... 是固定句型，意为 “据说……”，所以填 said。
isn't allowed：smoking 和 allow 之间是被动关系，根据语境用一般现在时的被动语态，结构为 “be + 过去分词”，表示否定，所以填 isn't allowed。
leaves：leaf 的复数形式是 leaves，根据后面的 are 可知用复数，所以填 leaves。
Fair：“Yiwu Commodity Fair” 表示 “义乌小商品博览会”，符合语境，所以填 Fair。
Environmental：“Environmental protection” 表示 “环境保护”，是固定短语，在句中作主语，所以填 Environmental。
processed：根据语境是看茶叶如何被采摘和加工，此处用被动语态，“is picked and processed” 表示 “被采摘和加工”，所以填 processed。
complete：must 是情态动词，后接动词原形，所以填 complete。
lively：修饰名词 characters 要用形容词，“lively” 表示 “生气勃勃的”，符合语境，所以填 lively。
scissors：“scissors” 表示 “剪刀”，常用复数形式，所以填 scissors。
heat：根据前面的 the 可知用名词形式，“heat” 表示 “热”，所以填 heat。
glass：“glass” 在这里作定语修饰 house，表示 “玻璃的”，用名词单数形式，所以填 glass。
produces：主语 North America 是第三人称单数，句子是一般现在时，所以谓语动词用 produces。
fair：根据语境可知这里说的是在这个集市上各种东西被售卖，“fair” 有 “集市，展览会” 的意思，所以填 fair。
四、按要求完成句子
Is；grown：原句是一般现在时的被动语态，改为一般疑问句时，把 be 动词 is 提前，其他部分不变，所以填 Is；grown。
Where are；made：对地点状语 in China 提问，用疑问词 where，然后把原句的 be 动词 are 提前，所以填 Where are；made。
are planted：原句是一般现在时的主动语态，改为被动语态时，结构为 “be + 过去分词”，主语 trees 是复数，be 动词用 are，plant 的过去分词是 planted，所以填 are planted。
What is；made of：对材料提问用疑问词 what，然后把原句的 be 动词 is 提前，所以填 What is；made of。
aren't allowed to：原句是一般现在时的被动语态，改为否定句时，在 be 动词后加 not，缩写为 aren't，其他部分不变，所以填 aren't allowed to。
don't think；is：在含有 think 的宾语从句中，否定要前移，即主句用否定形式，从句用肯定形式，所以填 don't think；is。

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