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外研版七年级上册 Module 7 Computers 同步练习（含解析）
一、单项选择
1．—Would you like to go to the cinema with me tonight
—I’d like to, but I have to ________ tomorrow’s English test.
A．search for B．go for C．look ford D．prepare for
2．—My computer doesn’t work. Could you help me to ________ it
—I don’t know much about computer but I’ll try.
A．find B．send C．coach D．repair
3．—Where are giraffes from
—They are from ________.
A．Africa B．Australia C．African D．Australian
4．We should ________ the elephants and we mustn’t ________ things made of ivory.
A．to save; buy B．saving; to buy C．save; buy D．save; to buy
5．I want to watch TV now. Can I _________
A．turn it on B．turn on it C．turn it off D．turn off it
6．Millie ________ everywhere for her new history book.
A．looked for B．searched C．searched for D．found
7．Poor sleep has an ________ on our memory and learning.
A．influence B．introduction C．instruction D．information
8．Please__________the TV. It'’s time to go to bed.
A．turn on B．turn off C．put on D．put off
9．They plan ________ the old next week.
A．visit B．visiting C．to visit D．visited
10．—Did you the International Marathon in Lan Zhou on June 2, 2019
—Of course. How exciting!
A．watch B．review C．suppose D．discover
二、完形填空
Are you worried if you go out with ___11___ some cash In the past, you might answer yes. ___12___ today, there is no need to worry. That’s because you can pay ___13___ nearly everything by e-payment（电子支付）in China.
The most common way of e-payment ___14___ by using QR codes（扫描二维码）. When you pay for something, you can either scan（扫描）the codes of the seller, or let the seller ___15___ the codes on your phone. Your money will then go to the seller through online banking.
People in China use e-payment services from Alipay, WeChat Pay and Apple pay. Among them, WeChat Pay is ___16___ most popular. Tencent made WeChat and it ___17___ that about 60 percent of people in China now use WeChat Pay.
WeChat Pay has even gone to foreign countries. Twelve countries and regions（地区）such as Thailand, Japan and Canada now use WeChat Pay. ___18___ is very helpful for the Chinese tourists to shop in these places. “In this way of paying, I don’t need ___19___ my wallet out or wait for change.” Liu Xin, a tourist ____20____ Beijing, told Xinhua.
11．A．bring B．bringing C．brings D．brought
12．A．So B．And C．But D．Because
13．A．for B．by C．on D．with
14．A．are B．were C．was D．is
15．A．to scan B．scanning C．to scanning D．scan
16．A．a B．an C．the D．/
17．A．say B．is saying C．says D．to say
18．A．That B．This C．It D．Its
19．A．to take B．taking C．take D．took
20．A．was from B．was come from C．from D．came from
三、阅读单选
Facial recognition (识别) technology is widely used today. For example, the police use it to search for bad guys. Most people use it to unlock phones or doors. It can also be used for payment.
Now, a similar technology called facial detection, is getting into the business of advertising (广告).
Such systems are going through tests in a small number of stores. There are two kinds of facial detection systems. One system can judge a person’s happiness or fear level (层次). The other system can detect if someone is wearing glasses or not. If so, stores can send advertisements for new glasses to him.
Facial detection technology is also placed inside some large advertising boards. Cameras in those boards can detect information like people’s ages and five levels of feelings.
Supporters say it could improve buyers’ experience by showing products they might like or by offering them products at lower prices.
Some are against the idea of using such systems. Pam Dixon, the head of a privacy group, is one of them. She thinks the strange actions may cause something unfair (不公平的). For example, a business could raise the price of a product according to a person’s age and feelings.
However, one store testing the technology explained they wouldn’t store people’s information like names or ages. And the advertising board system maker said it didn’t keep any personal information or record any videos.
21．Facial recognition technology can be used to do the following things EXCEPT ________.
A．searching for bad guys
B．unlocking phones or doors
C．paying for products
D．advertising
22．What’s TRUE about facial detection technology
A．It is widely used in stores.
B．It can store people’s information like names or ages.
C．It can keep personal information or record videos.
D．Some people are against it because it may offend people’s privacy.
23．What does the underlined word “detect” in Paragraph 3 mean
A．识别 B．控制 C．侦查 D．推测
24．What’s the best title for this passage
A．A New Technology — For or Against B．A Better Technology — Facial Detection C．Two New Technologies D．A Popular Technology — Facial Detection
If you look at the top of your phone, you’ll usually see a little symbol that says 3G or 4G. The “G” stands for the “generation” of your mobile network. But these symbols will become things of the past after 5G networks fully arrive.
On March 30th, 2019, Shanghai vice-mayor（副市长）Wu Qing made the first 5G video call on a Huawei Mate X smart phone, CGTN reported. Shanghai has also become the first city in China to start testing 5G metworks.
About 100 times faster than 4G networks. 5G will let people download and upload data faster than ever before. But 5G won’t just bring faster mobile Internet. People can use it for many other things as well.
For example, 5G will help to make self-driving cars safer. Today’s self-driving test cars have one problem—lag. When the car “sees” an obstacle（障碍物）, it sends the information to a data center and receives instructions. However, it takes time to send and receive information. With this kind of lag, the cars might crash because they don’t receive instructions in time. With 5G, this lag will be greatly lowered, making the cars safer, according to CNN.
5G could also be used to power the Internet of Things（IoT 物联网）. This refers to a large online network that connects all things and people. Fast Internet speeds will be the key to develop this technology.
The IoT could be used in a lot of ways. For example, with IoT, your refrigerator could automatically（自动地）place an order online for eggs when it finds that there are no eggs left inside. What happened to the swallow at last
25．We can know from the passage that 5G ________.
A．has been firstly tested in Beijing
B．stands for the generation of your smart phone
C．can make the networks 100 times faster than 4G
D．will be fully used immediately
26．The writer uses self-driving cars as an example to ________.
A．explain how 5G’s fast speed can be helpful
B．explain how self-driving cars work
C．show us how advanced self-driving cars are
D．warn about the possible dangers of self-driving cars
27．According to the passage, the IoT is ________.
A．a robot that can do housework
B．an online store where you can buy anything
C．a large online network that connects things and people
D．a type of high-tech refrigerator
A computer can do a lot of work.
The police use computers.They save all information on the computer.So the police can often check the information.And they can also visit some websites and get more information to catch criminals(抓捕罪犯)on the Internet.
Scientists(科学家)today have computers for their work.They can do their work easily and quickly with the help of computers.
Today in many schools，there is a computer room.Children can have their lessons with computers.For example，computers give questions on the screen of the monitor in front of the children and the children answer them with keyboards.
A computer can do many things.With the computer，we can write novels，listen to music，draw pictures，play computer games，make friends，send emails and download information and so on.
In the future，we may use the computer for more things.But it can't take__the__place__of man.We can think but it can't.
28．A computer can help scientists do their work ______.
A．happily B．quickly C．slowly D．carefully
29．Which of the following is TRUE
A．A computer can write novels and stories like people.
B．There is a computer room in many museums today.
C．The police can get anything they need on the Internet.
D．The computer can help the children learn better.
30．What does “take__the__place__of” mean in Chinese
A．指导 B．喜欢 C．代替 D．联系
31．What does the writer think of the computer in the future
A．It can't take the place of man，because it can't think.
B．Computers can help us do everything.
C．Computers are useless.
D．All of us will have computers.
Lots of students are interested in wild animals such as elephants, tigers, snakes, zebras, giraffes and so on. Here's some information about zebras and giraffes.
Zebras live in some parts of Africa. They live in groups. That's why we often see zebras walking and running in groups. Zebras look a lot like horses. In fact, horses are their nearest relatives. Zebras are famous for their black and white stripes(条纹). Each zebra's pattern(图案)of stripes is different. The patterns look similar, but they are unique like humans' fingerprints(指纹). No two have the same pattern. How do zebras protect themselves from their enemies They can stay alive because they run fast to avoid lions and other enemies.
Giraffes live in parts of Africa, too. They are brown and yellow. Their patterns are different. Giraffes are the tallest animals of all. They are one of the world's heaviest animals, and their hearts are the biggest of any animal's. They have long legs and long necks. Their necks are long, so they can reach high into trees to eat the leaves, which give giraffes most of the water they need. Giraffes' long legs mean they take big steps when they walk or run. They can run very fast, so they can protect themselves from dangerous animals such as lions.
32．The Chinese meaning of the underlined word “unique” is “________”.
A．独一无二的 B．完全相同的 C．常见的 D．相似的
33．What can we infer(推断)from Paragraph 2
A．Zebras are all from Asia. B．Lions may catch the slow zebras.
C．Zebras are black or white. D．Lions always live by themselves.
34．Why can giraffes protect themselves according to the text
A．Because they have long legs. B．Because they have big hearts.
C．Because they have heavy bodies. D．Because they have strong necks.
四、用所给单词的正确形式填空
35．You make it easy for me _________ (learn) math well.
36．________ you ________ (check) your suitcase yet
37．I want _______ (visit) my grandfather and grandmother tomorrow.
38．Those clothes are the ________(visit).
39．They would like ________ (visit) my parents.
五、完成句子
40．学习一门第二语言是重要的。
________ ________ ________ ________ a second language.
41．——一百年以后人们会用钱吗？
——不，不会。一切都将是免费的。
—________ people________ money in 100 years
—________, they ________. ________ will ________ free.
42．这个月我们有两场球类比赛，足球和排球。
This month we have two ________ ________, ________ and ________.
43．我们在出口处还是在电影院外面集合？
Shall we meet ________ the ________ or ________ the ________
44．我正开心地在加拿大拜访我的姑姑。
I’m having a great time ________ my aunt ________ ________.
六、改写句子
45．Wu Dong is playing games on the computer.（用sometimes改写）
Wu Dong ________ ________ games on the computer.
46．Bob is visiting Beijing at the moment.(用next week改写句子)
Bob is ________ to ________ Beijing next week.
47．We have travelled to some cities by plane.(改为一般疑问句)
________ you ________ to any cities by plane
48．This is a box.(改为复数形式)
________ ________ ________.
49．Is that a box （改为复数句）
________ those ________
七、汉译英：整句
50．我盼望着在暑假观看第20届省运会(Jiangsu Provincial Games)。
________________
51．他经常参加活动来帮助需要帮助的孩子。（take part in）
_______________________________________________________________
52．他的叔叔严重受伤，需要人来救他。
_________________________________________________________________
53．放学后，我经常和同学们在操场上玩。(on the playground)
__________________________
54．警察们搜遍了森林找那个九岁的男孩。
____________________________________________________________________________________
参考答案：
1．D
【详解】句意：——你今晚愿意和我一起去看电影吗？——我很乐意去，但我必须为明天的英语测验做准备。
考查动词短语。search for搜寻……；go for适用于；look for寻找；prepare for为……做准备。根据“tomorrow’s English test”可推知，要为明天的英语考试做准备。故选D。
2．D
【详解】句意：——我的电脑坏了。你能帮我修理一下吗？——我对电脑了解不多，但我会试一试。
考查动词词义辨析。find找到；send送；coach训练；repair修理。根据“My computer doesn’t work”可知，此处说电脑坏了，因此这里是能帮我“修理”吗。故选D。
3．A
【详解】句意：——长颈鹿来自哪里？——它们来自非洲。
考查词性辨析和常识。Africa非洲（名词）；Australia澳大利亚（名词）；African非洲的（形容词），非洲人（名词）；Australian澳大利亚的（形容词），澳大利亚人（名词）。根据常识可知，长颈鹿来自非洲，用名词Africa。故选A。
4．C
【详解】句意：我们应该拯救大象，我们不能买象牙制品。
考查谓语动词的形式。save拯救；buy买；根据空后是“the elephants大象”可知是拯救大象，should为情态动词，其后使用动词原形，因此，第一空填save；根据“things made of ivory”可知，此处表达的是禁止“买”象牙制品，情态动词mustn’t之后跟动词原形，因此，第二空使用buy。故选C。
5．A
【详解】句意：我现在想看电视。我能打开呢？
考查动词短语。turn on打开；turn off关闭，根据“I want to watch TV now”可知，想看电视，所以应该是打开电视，用turn on，排除C和D，turn on是动副短语，宾语是人称代词时，要放在中间，排除B，故选A。
6．B
【详解】句意：Millie到处寻找她的新历史书。
考查动词辨析。look for指“寻找”不见的或丢失的东西，后接寻找的对象；search搜寻，查找，后面接寻找的范围；search for指“为了找到……而搜查”；find指“找到了”，表达寻找有了结果。句中everywhere为寻找的范围，用search。故选B。
7．A
【详解】句意：睡眠不好会影响我们的记忆力和学习能力。
考查名词辨析。influence影响；introduction介绍；instruction说明；information信息。根据“Poor sleep has an … on our memory and learning”及常识可知，睡不好会影响记忆力和学习能力，故选A。
8．B
【详解】考查动词短语辨析。A. turn on“打开“；B. turn off“关闭”；C. put on“穿上；增加（体重）”；D. put off“推迟”。句意：请 _______ 电视，该上床睡觉了。根据后面信息该睡觉了，当然应该关电视。故选B。
9．C
【详解】句意：他们计划下星期去看望老人
考查非谓语动词。此处是固定搭配，plan to do sth.“计划做某事”，此处是不定式作宾语。故选C。
10．A
【详解】句意：——你看2019年6月2日在兰州举行的国际马拉松比赛了吗 ——当然。太令人兴奋了!
考查动词辨析。A. 观看（电视/比赛）；B. 回顾；C. 设想；D. 发现。根据the International Marathon可知选A。
11．B
12．C
13．A
14．D
15．D
16．C
17．C
18．C
19．A
20．C
【分析】本文是新闻类阅读，对新兴的支付方式“电子支付”进行了报道，介绍了电子支付的便利，对微信支付支付宝支付和苹果支付作了对比，最后介绍了微信支付的广泛影响。
11．句意：如果你带着现金出去，你会担心吗？
根据题干“go out with…some cash”，介词with后面需接动名词；结合选项，可知bringing是动词bring的动名词形式，故选B。
12．句意：但是今天，没有必要担心。
so所以，表结果；and和，表并列；but但是，表转折；because因为，表原因。根据上下文“In the past, you might answer yes…today, there is no need to worry”，可知前后是转折关系，故选C。
13．句意：这是因为在中国，几乎所有东西都可以通过电子支付付钱。
for为了，表目的；by通过，表方式；on在上面；with和，表伴随。根据题干“you can pay…nearly everything”，可知pay for 表示“支付/付钱”，符合语境，故选A。
14．句意：最常见的电子支付方式是使用二维码。
根据语境，本句陈述事实用一般现在时，were和was都是过去式，可排除BC两项。主语“The most common way of e-payment”中心词是way，单数第三人称，系词需用is。故选D。
15．句意：当你付钱的时候，你可以扫描卖家的代码，或者让卖家扫描你手机上的代码。
根据题干“let the seller…the codes on your phone”，let是使役动词，可知是“let sb./sth. do sth.让某人/某物做某事”固定结构。设空处需用原形动词，故选D。
16．句意：其中，微信支付是最受欢迎的。
不定冠词a/an修饰单数名词表泛指；定冠词the表特指。the修饰序数词或最高级，由most popular是形容词最高级，可知需用定冠词修饰，故选C。
17．句意：据腾讯表示，目前中国有60%的人使用微信支付。
句中it是指WeChat，根据下文“about 60 percent of people in China now use WeChat Pay”，可知陈述的是事实，需用一般现在时；由it是单数第三人称，可知动词需用三单形式。结合选项，says是say的三单形式，故选C。
18．句意：对中国游客来说，在这些地方购物是很有帮助的。
that那；this这；it它，可用作形式主语；its它的。根据题干“…is very helpful for the Chinese tourists to shop in these places.”，可知是固定句型“It’s +形容词+ for sb. +不定式”结构，it是形式主语，后面的不定式是真正主语。故选C。
19．句意：用这种方式付款，我不用掏出钱包，也不用等找零。
need用作情态动词后接原形动词，用作实意动词有固定表达need to do，表示“需要做某事”。故选A。
20．句意：来自北京的游客刘欣(音)告诉新华社。
be from和come from都是固定表达，表示“来自”；was come from是错误表达，可排除。根据题干“Liu Xin, a tourist…Beijing, told Xinhua.”，可知句子不缺主谓，可排除AD两项。设空处是介词短语作后置定语，from Beijing来自北京的，故选C。
21．D
22．D
23．C
24．A
【导语】本文是一篇说明文。文章介绍了与人脸识别技术相似的一种新技术：人脸探测技术在广告业的应用，它可以识别人的心情以及年龄等信息，并在一些小商店开始投入使用，但对此类技术有的人表示支持，有的人却反对。
21．细节理解题。根据“Facial recognition technology is widely used today. For example, the police use it to search for bad guys. Most people use it to unlock phones or doors. It can also be used for payment.”可知人脸识别技术可以用来搜寻坏人、解锁手机或门、为产品支付，不包括做广告。故选D。
22．推理判断题。根据“She thinks the strange actions may cause something unfair.”可知反对者认为这会造成不公平，由此推出有些人反对它，因为它可能会侵犯人们的隐私。故选D。
23．词义猜测题。根据“if someone is wearing glasses or not”可知这个系统能侦查出人是否戴眼镜了，detect意为“检测、侦查”。故选C。
24．标题归纳题。文章介绍了与人脸识别技术相似的一种新技术：人脸探测技术在广告业的应用，它可以识别人的心情以及年龄等信息，并在一些小商店开始投入使用，但对此类技术有的人表示支持，有的人却反对。用“A New Technology — For or Against”做标题最合适。故选A。
25．C
26．A
27．C
【导语】本文主要讲述了未来5G在各行各业的运用。
25．细节理解题。根据“About 100 times faster than 4G networks. 5G will let people download and upload data faster than ever before”可知，5G能让网络比4G快100倍，故选C。
26．推理判断题。根据“People can use it for many other things as well.”和第四段内容可知，举这个例子是为了解释5G的高速是如何起作用的，故选A。
27．细节理解题。根据“This refers to a large online network that connects all things and people”可知，IoT指的是一个连接所有事物和人的大型在线网络，故选C。
28．B
29．D
30．C
31．A
【分析】这篇短文主语介绍了电脑能帮助人们做许多的事情，但是它不能取代人类，因为我们可以思考，但它不能。
28．细节理解题。根据They can do their work easily and quickly with the help of computers可知电脑能帮助科学家快速做工作，故选B。
29．细节理解题。根据With the computer，we can write novels，listen to music可知电脑能帮助我们写小说，而不是像人们一样写小说，故A错误；根据Today in many schools，there is a computer room.可知在学校有电脑室，故B错误；根据第二段可知电脑能帮助警察但是不能获得任何需要的东西，故C错误，根据第四段Children can have their lessons with computers.可知电脑能帮助孩子们学习，故选D。
30．词义猜测题。根据In the future，we may use the computer for more things.及We can think but it can't.可知电脑能做很多事情，我们能思考但是电脑不能，可知它不能代替人类，故选C。
31．细节理解题。根据In the future，we may use the computer for more things.But it can't take__the__place__of man.We can think but it can't.“将来，我们可能会用电脑做更多的事情，但它不能取代人的位置，我们可以思考，但它不能。”，故选A。
32．A
33．B
34．A
【分析】文章主要讲述了两种野生动物斑马和长颈鹿外貌和习性以及如何保护自己。
32．词义猜测题。根据“…but they are unique like humans' fingerprints. No two have the same pattern.”可知，斑马身上的图案和人的指纹一样是各不相同的，即独一无二的。故选A。
33．推理判断题。根据“They can stay alive because they run fast to avoid lions and other enemies.”可知，斑马可以通过跑地快来避免狮子的捕捉，因此如果跑地慢可能会被狮子抓住的。故选B。
34．细节理解题。根据“Giraffes' long legs mean they take big steps when they walk or run. They can run very fast, so they can protect themselves from dangerous animals such as lions.”可知，长颈鹿之所以能保护自己，是因为他们长长的腿能让他们跑地快以避免危险动物捕捉他们。故选A。
35．to learn
【详解】句意：你让我很容易学好数学。learn“学习”，是动词，固定短语make it+形容词+for sb to do sth“让某人做某事是……”，故填to learn。
36． Have checked
【详解】句意：你的手提箱托运了吗？根据“yet”可知，时态是现在完成时，主语是you，助动词用have，置于句首构成疑问句语序；check要变成过去分词checked。故填Have；checked。
37．to visit
【详解】句意：明天我想去拜访我的爷爷、奶奶。visit参观，拜访， 是一个动词。句中谓语动词是want，想要，常用于句型want to do sth.想要去做某事，因此这里填动词不定式to visit。
38．visitors’
【详解】句意：那些衣服是参观者的。由主语“Those clothes”可知，此句是说那些衣服是某人的，此处应用名词所有格。动词visit可变形为名词visitor，意为“参观者”，为可数名词，此处不止一个游客用复数形式visitors，其所有格形式为visitors’，故填visitors’。
39．to visit
【详解】句意：他们想去看望我的父母。visit“参观；拜访”。固定用法：would like to do sth“想要做某事”，故填to visit。
40． It’s important to learn
【详解】固定句型It’s adj. (for sb.) to do sth.“（对于某人来说）做某事是怎么样的”，It在句中充当形式主语；important“重要的”，形容词；learn“学”。故填It’s；important；to；learn。
41． Will use No won’t Everything be
【详解】根据汉语可知，第一句是一般将来时的一般疑问句，“将会”will放句首，后跟动词原形；“使用”use；否定回答用“No,主语+won’t”；“一切”everything；will后跟动词原形，be“是”。故填Will；use；No；won’t；Everything；be。
42． ball games soccer##football volleyball
【详解】根据句子结构可知，此处空对应的中文是“球类比赛”、“足球”和“排球”。ball game球类比赛，此处空前为two，故使用game的复数形式；soccer/football足球；volleyball排球。故填ball；game；soccer/football；volleyball。
43． at exit outside cinema
【详解】本句是选择疑问句，主语是we，谓语动词是meet，后面是表示地点的介词短语，or表示选择关系，“在出口处”英文表达为“at the exit”；“在电影院外”英文表达为“outside the cinema”。故填at；exit；outside；cinema。
44． visiting in Canada
【详解】“拜访”visit；“在加拿大”in Canada。have a good time doing sth.“很开心地做某事”。故填visiting；in；Canada。
45． sometimes plays
【详解】句意：吴东正在电脑上玩游戏。原句是现在进行时，根据“sometimes”可知此句时态为一般现在时，主语Wu Dong是第三人称单数，谓语应用三单形式，play的三单形式是plays；频度副词一般放在实意动词前，助动词、情态动词或be动词后。故填sometimes；plays。
46． going visit
【详解】句意：鲍勃此刻正在参观北京。根据“next week”可知，时态为一般将来时，应使用be going to do结构；所以第一个空填写going；第二个空填写visit。故填going；visit。
47． Have travelled
【详解】句意：我们乘飞机去了一些城市。一般疑问句将助动词have提到句首，第一人称we改为第二人称you，其它不变，故填Have；travelled。
48． These are boxes
【详解】句意：这是一个盒子。This的复数是These，is的复数是are，a box的复数是boxes，故填These；are；boxes。
49． Are boxes
【详解】句意：那是一个盒子吗？is的复数形式是are，that的复数形式是those，a box的复数形式是boxes，故填Are；boxes。
50．I look forward to/am looking forward to watching the 20th Jiangsu Provincial Games in the summer holiday.
【详解】盼望做某事：look forward to doing sth；观看：watch；在暑假：in the summer holiday；“look forward to doing sth”可用一般现在时或现在进行时表述现阶段发生的动作。故填I look forward to/am looking forward to watching the 20th Jiangsu Provincial Games in the summer holiday.
51．He often takes part in activities to help children in need.
【详解】他：he；经常：often；参加：take part in；活动：activities；帮助：help；需要帮助的孩子：children in need。由often可知，此题的时态为一般现在时，主语he是单数，因此谓语用第三人称单数形式，这里用动词不定式作目的状语。故填He often takes part in activities to help children in need.
52．His uncle was badly/seriously hurt and needed someone to save him.
【详解】根据汉语可知，本句为陈述句。his uncle“他的叔叔”，在句中作主语；badly/seriously“严重地”；hurt“受伤的”；need“需要”；某人“someone”；save him“救他”；need sb to do sth“需要某人做某事”。本句描述的不是客观事实或经常发生的动作，用一般过去时，动词用过去式。故填His uncle was badly/seriously hurt and needed someone to save him.
53．After school, I often play with my classmates on the playground./ I often play with my classmates on the playground after school.
【详解】放学后：after school；我：I；经常：often；玩：play；同学们：classmates；我的：my；和：with；在操场上：on the playground；结合语境可知，句子使用一般现在时。故填After school, I often play with my classmates on the playground./ I often play with my classmates on the playground after school.
54．The policemen/ The police searched the whole forest for the nine-year-old boy.
【详解】根据题干可知，本句是一般过去时。the policemen/the police“警察们”，作主语；search...for...“搜查……”，search的过去式为searched；the whole forest“整个森林”；the nine-year-old boy“九岁的男孩”，作for的宾语。故填The policemen/ The police searched the whole forest for the nine-year-old boy.
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