2025新外研版七年级英语下册Unit 3第三单元词汇检测练习题
一、单词拼写
1．To keep (health), you’d better give up the habit of staying up late.
2．You can see seven (potato) plants in the yard.
3．My mother can sing really (good).
4．Mr Smith plans (stay) here much longer because he has lots of things to do.
5．Mr Miller eats lots of vegetables, but he (not eat) meat.
6．My uncle likes fishing. He often spends a lot of time (fish) on weekends.
7．Sam doesn’t want (drink) milk.
8．Could you bring me some (bread)
9．—Do you like (banana)
—Yes, I do.
10．Dad, I’m still hungry. Can I have (some) snacks to eat
11．My mother is busy (buy) some food for the party.
12．—What can you see in the picture
— I can see some (tomato) on a table.
13．I put some (sugar) in my juice.
14．I have (一些) things in my desk.
15．The food is so (美味的). Would you like some
16．We have shows about different festivals the world. (围绕)
17．My uncle has many animals and he lives on the (农场).
18．It is (重要的) for us to have a healthy lifestyle.
19．Eating too much (巧克力) is bad for our teeth.
20．How about eating some oranges after (晚餐)
21．—Do you like hamburgers for lunch, Li Ming
—No, I am a Chinese boy. We Chinese like (米饭) for lunch.
22．Cindy likes ice-cream but she doesn’t eat it. She doesn’t want to be (肥胖的).
23．What about some (面包) I really like it.
24．Are there any (蔬菜) on your aunt’s farm
25．Billy has a few bad (tooth) in his mouth. He eats lots of sweets.
26．How many (goose) does he have on the farm
27．—How many (kind) of animals do your grandparents have
—Three. Cows, dogs and chickens.
28．Teng Fei (have) a fishing rod. He (spend) a lot of time fishing.
29．I often go (shop) with my parents on weekends.
30．—How much (milk) do you need
—We need two cups.
二、完形填空
Breakfast is the first and most 31 meal of the day. Everyone should eat a good breakfast to build a strong body and 32 healthy. Eating the right food is good 33 our health. We may have eggs, bread, rice, noodles, cereals, fruit, juice and milk for our breakfast. We also need some vegetables.
Many 34 don’t get their children to eat breakfast, 35 they don’t have breakfast themselves. It 36 their health. Our body spends at least 6 to 12 hours without eating each night. In the morning our body 37 energy (能量) for the day’s work.
Without breakfast, children may not 38 as fast as they should. They may not study or play well in school. They can often be ill. And when they are ill, it may take a long time to 39 again. Not eating breakfast can also cause us to eat too much. And without food the body will 40 . Nobody will live without food.
31．A．interesting. B．important C．popular D．amazing
32．A．stay B．enjoy C．make D．improve
33．A．at B．with C．in D．for
34．A．classmates B．parents C．players D．workers
35．A．however B．but C．because D．so
36．A．is bad for B．is good at C．is late for D．is new to
37．A．shares B．wakes C．wishes D．needs
38．A．join B．lead C．grow D．finish
39．A．get well B．get back C．wake up D．fall off
40．A．put on weight B．stay in shape C．stay healthy D．stop working
三、阅读理解
1
Below is an infographic (信息图).
Dangerously Sweet: Sugar
41．If we have too much sugar, maybe we will ________.
A．get slim B．sleep well C．look older D．have good teeth
42．What can we learn about sugar from the infographic (信息图)
A．A woman eats as much sugar as a man.
B．There are 4g of sugar in 66g of ice cream.
C．Americans eat less sugar for each person than Chinese do.
D．400ml of rice milk has less sugar than 400ml of grape juice.
43．What does the list of “The hidden (隐藏的) sugar in foods and drinks” remind (提醒) us
A．Too much sugar can hurt our body badly.
B．Foods and drinks with sugar are popular among children.
C．We often have more sugar than we can without knowing it.
D．We should have enough sugar to make foods and drinks taste good.
44．The writer wants to ________.
A．try to teach us skills B．ask us to eat healthily
C．make us laugh D．ask us not to buy sugar
45．Where may we read the infographic
A．In a newspaper. B．In a geography notebook.
C．In a storybook. D．In a music magazine.
2
Fast food is very popular in the world. It is cheap to make. Fast food is quick and easy for people to eat. Many people, including children, like it because it tastes good.
Fast food is bad for health, especially for young children. It may cause overweight (超重), heart diseases (心脏病) and many other health problems. When children start eating lots of fast food, they don’t want to have enough milk and healthy fruit juices, so they can’t get enough calcium for their body.
It’s OK to have fast food now and then. If you are overweight and want to lose weight, you should eat as little fast food as possible. If you are active and not overweight, you can have some after you’ve had enough dairy products (乳制品), fruit, vegetables and cereals(谷类食物).
Fast food still has some nutrients (营养物质) and it is a small part of a balanced diet. So you should eat healthy foods about 95% of the time, and 5% of the time eat fast food.
Some kids are spending lots of money on fast food. In order to keep yourself healthy and happy, don’t eat too much fast food!
46．Why do many people like fast food according to the passage
A．It tastes good. B．It is cheap. C．It is popular.
47．What problems can fast food cause to people
A．It can break our heart.
B．It can make people lose weight.
C．It can make us unhealthy.
48．What does the underlined word “now and then” mean
A．Sometimes. B．Always. C．Never
49．What’s the writer’s opinion about eating fast food
A．You should never eat fast food
B．Don’t eat too much fast food
C．Fast food has no nutrients.
四、短文填空
Rick is 50 fat man. He gets up late in the morning. He 51 (have) a big breakfast every morning. He eats four eggs and some 52 (piece) of bread. He drinks two 53 (glass) of milk, some apple juice, a cup of coffee and some fruit. His wife, Vicky, has a cup of tea and a banana 54 breakfast. Rick doesn’t do 55 (some) ball games. But he likes 56 (listen) to the music and watching TV. Jim is 57 (he) good friend. In fact, he is in a swimming club. He does sports every day, 58 he is very healthy.
If you want to stay healthy, you should eat 59 (good) and do sports every day.
五、完成句子
60．麻婆豆腐是一种美味的中国食物。
Mapo tofu is a of delicious Chinese food.
61．桌子上有三盒牛奶和一些面包。
There on the table.
62．番茄蛋汤里面有肉吗？
Is there in the tomato and egg soup
63．午餐你想吃西红柿吗？
Do you like for lunch
64．I think carrots and eggs (对……有好处) our eyes.
65．中秋节快到了，我们盼望着一起吃月饼。
The Mid-autumn Day is coming. We mooncakes together.
66．我们买了些礼物并吃了些美味的食物。
We some gifts and ate some food.
67．他们上周六做作业和购物了。
They homework and shopping last Saturday.
68．李明晚餐吃水果因为他不想变胖。
Li Ming eats fruit for dinner because he .
69．每天喝两杯牛奶，对你的健康很重要。
It’s very for your health to drink milk every day.
70．I am going to eat eggs and bread for breakfast. （对划线部分提问）
you for breakfast
71．I bought some vegetables.
vegetables you
72．She has chicken for dinner. (对画线部分提问)
she for dinner
73．Uncle Bob sometimes has lunch at home. (对画线部分提问)
Uncle Bob sometimes lunch
74．We’d like two kilos of oranges. (对画线部分提问)
oranges would you like
75．Let’s eat some carrots. （改为同义句）
eating some carrots
76．There are some tomatoes. (改为一般疑问句)
there tomatoes
77．My father has a fishing rod.（改为一般疑问句）
father a fishing rod
78．There are some tomatoes and mangoes on the table, too. (改否定句)
There are tomatoes mangoes on the table, either.
79．This is an apple tree.（改为复数句）
.
参考答案
一、
1．healthy
【解析】句意：为了保持健康，你最好改掉熬夜的习惯。空前为系动词keep，其后接形容词作表语；health“健康”，名词，其形容词为healthy，意为“健康的”。故填healthy。
2．potato
【解析】句意：你可以在院子里看到七株土豆植株。根据“plants”可知，此处名词修饰名词，用单数形式potato。故填potato。
3．well
【解析】句意：我妈妈唱歌唱得很好。此处需要副词来修饰动词“sing”，对应的副词形式是“well”，故填well。
4．to stay
【解析】句意：史密斯先生计划在这里多待一会儿，因为他有很多事情要做。plan to do sth“计划做某事”，因此应填动词不定式形式“to stay”作宾语。故填to stay。
5．does not eat/doesn’t eat
【解析】句意：米勒先生吃很多蔬菜，但他不吃肉。时态为一般现在时，主语是第三人称单数he，动词eat在否定句中需用助动词does not，后接动词原形。故填does not eat/doesn’t eat。
6．fishing
【解析】句意：我叔叔喜欢钓鱼。他经常在周末花很多时间钓鱼。spend time doing sth.“花时间做某事”，固定词组。故填fishing。
7．to drink
【解析】句意：Sam不想喝牛奶。want to do sth.“想要做某事”，动词不定式作宾语。故填to drink。
8．bread
【解析】句意：你能给我一些面包吗？bread“面包”，不可数名词，在动词后作宾语，故填bread。
9．bananas
【解析】句意：——你喜欢香蕉吗？——是的，我喜欢。banana“香蕉”，可数名词，用复数形式表示一类事物，故填bananas。
10．some
【解析】句意：爸爸，我还是饿。我能吃点零食吗？由“Can I have… ”可知使用some，some用在含有情态动词的一般疑问句，表示特殊语气，希望对方作肯定回答。故填some。
11．buying
【解析】句意：我妈妈正忙着为聚会买食物。根据be busy doing sth.“忙于做某事”可知，此处应用动名词。故填buying。
12．tomatoes
【解析】句意：——你能在图片中看到什么？——我可以看见一些西红柿在桌子上。tomato“西红柿”，可数名词，some修饰可数名词的复数形式，故填tomatoes。
13．sugar
【解析】句意：我在果汁里放了一些糖。sugar“糖”，不可数名词，故填sugar。
14．some
【解析】句意：我的桌子里有一些东西。该句为肯定句，some“一些”，在句中修饰things，故填some。
15．delicious
【解析】句意：这个食物如此美味。你想来点吗？根据中文提示，“美味的”delicious，形容词在句中作表语。故填delicious。
16．around
【解析】句意：我们有关于世界各地不同节日的节目。此处是一个介词，“围绕”英文为“around”，“around the world”表示“全世界”，句中作定语修饰“festivals”，“different festivals around the world”表示“全球节日”。故填around。
17．farm
【解析】句意：我叔叔有很多动物，他住在农场里。farm“农场”，on the farm“在农场”，故填farm。
18．important
【解析】句意：对我们来说拥有健康的生活方式是重要的。important形容词，重要的，根据汉语提示，故填important。
19．chocolate
【解析】句意：吃太多巧克力对我们的牙齿有害。“too much”后接不可数名词，chocolate意为“巧克力”。故填chocolate。
20．dinner/supper
【解析】句意：晚餐后吃些橙子怎么样？“晚餐”的英文表达是dinner或supper，不可数名词。故填dinner/supper。
21．rice
【解析】句意：——李明，你午饭喜欢吃汉堡包吗？——不，我是一个中国男孩。我们中国人午餐喜欢吃米饭。米饭：rice，不可数名词。故填rice。
22．fat
【解析】句意：Cindy喜欢冰淇淋，但她不吃。她不想胖。“肥胖的”为fat，形容词在句中作表语，故填fat。
23．bread
【解析】句意：来点面包怎么样？我真的很喜欢。bread“面包”，是不可数名词，此处用原形，故填bread。
24．vegetables
【解析】句意：在你姑姑的农场有蔬菜吗？vegetable“蔬菜”，根据are可知，此空应填复数形式，故填vegetables。
25．teeth
【解析】句意：Billy嘴里有几颗坏牙。他吃了很多甜食。tooth“牙齿”是可数名词，前面有“a few”修饰，名词需变为复数形式“teeth”。故填teeth。
26．geese
【解析】句意：他在农场里养了多少只鹅？goose“鹅”，为可数名词，“How many”接可数名词复数形式geese。故填geese。
27．kinds
【解析】句意：——你祖父母有多少种动物？——三种。牛、狗和鸡。how many后接可数名词复数，kind的复数kinds，意为“种类”。故填kinds。
28． has spends
【解析】句意：滕飞有一根钓鱼竿。他花费大量时间钓鱼。根据该句描述的是一般事实，所以用一般现在时；第一句主语“Teng Fei”是第三人称单数，所以谓语动词用第三人称单数形式，have的第三人称单数形式为has；第二句主语“he”是第三人称单数，所以谓语动词用第三人称单数形式，spend的第三人称单数形式为spends，故填has；spends。
29．shopping
【解析】句意：我经常在周末跟父母去购物。动词短语go shopping表示“去购物”。故填shopping。
30．milk
【解析】句意：——你们需要多少牛奶？——我们需要两杯。milk“牛奶”，是不可数名词，没有复数形式，故填milk。
二、
31．B 32．A 33．D 34．B 35．C 36．A 37．D 38．C 39．A 40．D
【解析】本文介绍了吃早餐的重要性以及不吃早餐的危害。
31．句意：早餐是一天中第一顿也是最重要的一餐。
interesting有趣的；important重要的；popular流行的；amazing惊人的。根据“Everyone should eat a good breakfast”可知，早餐是最重要的一餐。故选B。
32．句意：每个人都应该吃一个好的早餐来建立一个强壮的身体和保持健康。
stay保持；enjoy喜欢；have有；improve提高。stay healthy“保持健康”，固定搭配。故选A。
33．句意：吃正确的食物对我们的健康有好处。
be good at擅长；be good to适于；be good in在……中表现出色；be good for对……有好处。此处指吃健康的食物对健康有好处。故选D。
34．句意：许多父母不让他们的孩子吃早餐，因为他们自己不吃早餐。
classmates同学；parents父母；players运动员；workers工人。根据“their children”可知，此处指父母不让孩子吃早餐。故选B。
35．句意：许多父母不让他们的孩子吃早餐，因为他们自己不吃早餐。
however然而；but但是；because因为；so因此。根据“Many parents don’t get their children to eat breakfast, …they don’t have breakfast themselves”可知，此处上下句是因果关系，应用because连接。故选C。
36．句意：这对他们的健康有害。
is bad for对……有害；is good at擅长；is late for迟到；is new to对……不熟悉。根据“they don’t have breakfast themselves”可知，不吃早餐对健康有害。故选A。
37．句意：早上我们的身体需要能量来完成一天的工作。
shares分享；wakes醒来；wishes希望；needs需要。根据“our body…energy for the day’s work”可知，身体完成工作需要能量。故选D。
38．句意：如果不吃早餐，孩子们可能无法像他们应该的那样快速成长。
join参加；lead导致；grow成长；finish完成。根据“Without breakfast, children may not…as fast as they should”可知，不吃早餐，孩子无法正常成长。故选C。
39．句意：当他们生病时，可能需要很长时间才能恢复健康。
get well康复；get back回来；give back归还；come out出现。根据“And when they are ill, it may take a long time to…”可知，生病需要花长时间恢复健康。故选A。
40．句意：但如果没有食物，身体就会停止工作。
put on weight变胖；stay in shape保持身材；move away搬走；stop working停止工作。根据“But without food the body will…”可知，没有食物的话，身体就会停止工作。故选D。
三、
1
41．C 42．D 43．C 44．B 45．A
【解析】本文是一篇说明文。文章主要介绍了关于糖的摄入量，食物和饮料中的含糖量以及糖对人们的影响。
41．判断推理题。根据“What does sugar do to our body looking older than our age”可知，“糖对我们的身体有什么作用？”中提到“看起来比我们的年龄大”，可推测如果我们吃多了糖，我们可能看起来很老。故选C。
42．判断推理题。根据“How much sugar can we have a day Man: 9 teaspoons of sugar; Woman: 6 teaspoons of sugar”，“The hidden sugar in foods and drinks. Ice cream (66g): 4 teaspoons; 1teaspoon=4g of sugar”，“How much sugar do we have a day China: 12.5 teaspoons for each person; The US: 18.75 teaspoons for each person”和“The hidden sugar in foods and drinks. rice milk (400ml): 8 teaspoons; grape juice (400ml): 10 teaspoons”可知，“我们每天能吃多少糖”中提到“男人：9勺糖；女人：6勺糖”，可推测男人每天吃的糖比女人多；“食物和饮料里隐藏的糖”中提到“66克的冰淇淋里有4勺糖，1勺糖等于4克糖”，可推测66克冰淇淋里有4×4=16克糖；“我们一天吃多少糖”中提到“中国：每人12.5茶匙；美国：每人18.75茶匙”，可推测美国人每人吃的糖比中国人多；“食物和饮料里隐藏的糖”中提到“400ml的rice milk里有8勺糖；400ml的grape juice里有10勺糖”，可推测400ml的rice milk比400ml的grape juice含糖量低；D选项“400ml的rice milk比400ml的grape juice含糖量低”与信息表相符。故选D。
43．判断推理题。根据图表“The hidden sugar in foods and drinks.”中的内容可知，一些食物和饮料的含糖量，如：冰淇淋含有4勺糖，而葡萄汁中含有12勺糖，可推测我们在不了解食物和饮料中的具体含糖量的情况下，摄入了更多的糖。故选C。
44．判断推理题。根据信息图表可知，作者告诉我们每天能食用的糖量，食物和饮料中隐藏的糖量，以及各国每人一天摄入的糖量和过量食用糖对我们的危害，可推测作者想要要求我们健康地吃。故选B。
45．判断推理题。根据全文通篇介绍了关于糖的摄入量，食物和饮料中的含糖量以及糖对人们的影响，即是一篇科普文，可推测我们可以在报纸上读到。故选A。
2
46．A 47．C 48．A 49．B
【解析】本文主要讲述了快餐在世界上非常受欢迎，尤其是孩子们都非常喜欢吃快餐。但是吃太多的快餐对身体健康是不好的，它会导致孩子超重、心脏病以及其他健康问题。快餐可以吃，但不能多吃。
46．细节理解题。根据“Many people, including children, like it because it tastes good.”可知，因为它尝起来很美味，故选A。
47．细节理解题。根据“Fast food is bad for health, especially for young children.”可知，快餐对人们的健康是有害的，故选C。
48．词义猜测题。根据“If you are overweight and want to lose weight, you should eat as little fast food as possible. If you are active and not overweight, you can have some after you’ve had enough dairy products (乳制品), fruit, vegetables and cereals”可知，如果你超重并想减肥，应该尽可能少吃快餐。如果你不超重，可以在摄入足够的乳制品、水果、蔬菜和谷物后吃一些，所以有时可以吃一些快餐的，故选A。
49．观点态度题。根据“It’s OK to have fast food now and then.”“Fast food still has some nutrients (营养物质) and it is a small part of a balanced diet. So you should eat healthy foods about 95% of the time, and 5% of the time eat fast food.”及“don’t eat too much fast food”可知，作者的观点是可以吃快餐，但是不能吃太多。故选B。
四、
50．a 51．has 52．pieces 53．glasses 54．for 55．any 56．listening 57．his 58．so 59．well
【分析】本文是一篇记叙文，描述了里克的一些生活习惯及与其朋友进行的对比，以此表达要想身体健康，就要吃得好以及多运动的建议。
50．句意：里克是个胖子。根据句子结构，空格处应填不定冠词表泛指，空格后单词fat以辅音音素开头，故应用不定冠词a。故填a。
51．句意：他每天早上都会吃一顿丰盛的早餐。主语为he且根据every morning提示，此处动词have应用第三人称单数形式，故填has。
52．句意：他会吃四个鸡蛋和几片面包。空格前为some，故量词piece应用复数形式。故填pieces。
53．句意：他会喝两杯牛奶。空格前为two，故量词glass应用复数形式。故填glasses。
54．句意：他的妻子维姬早餐时会喝一杯茶和吃一根香蕉。have … for breakfast为固定搭配，意为“吃……作为早餐”，符合句意，故填for。
55．句意：里克不玩球类运动。根据句中doesn’t提示，句子为否定句，故应用any。故填any。
56．句意：但是他喜欢听音乐和看电视。like doing sth.为固定搭配，意为“喜欢做某事”，故动词listen应用ing形式。故填listening。
57．句意：吉姆是他的好朋友。根据句子结构，空格处应填形容词性物主代词，修饰名词friend，he的形容词性物主代词为his，意为“他的”，符合句意，故填his。
58．句意：他每天都做运动，因此他很健康。根据前后句的语境理解可知，因为经常做运动，所以身体健康。前后句是因果关系，前因后果。故填so。
59．句意：你应该吃好，并且每天做运动。根据句子结构，空格处应填副词，修饰动词eat，形容词good可转换为副词well，故填well。
五、
60．kind
【解析】根据中英文对照可知，空处缺“一种”的英文。a kind of...表示“一种……”，固定搭配，其中kind意为“种类”，为名词。故填kind。
61．are three cartons of milk and some bread
【解析】对比中英文句子可知，空格处缺少“有三盒牛奶和一些面包”的英文表达。three cartons of milk“三盒牛奶”，and“和”，some bread“一些面包”。本句是there be句型，根据就近原则，be动词要用are。故填are three cartons of milk and some bread。
62． any meat
【解析】在疑问句中表示“一些”，用any；肉：meat，不可数名词。故填any；meat。
63． eating/having tomatoes
【解析】根据汉语提示可知第一空应用动词eat/have“吃”，位于“like”后动词需变为动名词“eating/having”，作宾语；第二空应用名词tomato“西红柿”，可数，此处应用复数形式“tomatoes”，表示类别。故填eating/having；tomatoes。
64． are good for
【解析】句意：我认为胡萝卜和鸡蛋对我们的眼睛有好处。根据汉语提示可知此处考查短语“对……有好处be good for”，句子主语是carrots and eggs，表示复数概念，动词用are。故填are；good；for。
65． look forward to eating
【解析】根据所给句意可知，空白处表示“期望吃”，用短语look forward to doing sth.，意为“期望做某事”，此句为一般现在时，主语是“We”，look用原形；吃“eat”，动词，故填look；forward；to；eating。
66． bought delicious
【解析】买：buy；根据“ate”可知句子用一般过去时，动词用过去式；美味的：delicious，形容词作定语。故填bought；delicious。
67． did their went
【解析】做作业：do one’s homework，此处用形容词性物主代词their；购物：go shopping；根据“last Saturday”可知句子用一般过去时，动词用过去式。故填did；their；went。
68． doesn’t want to get fat
【解析】根据语境可知，时态用一般现在时，主语是he是第三人称单数，谓语动词应用三单形式；句子为否定句，应用助动词doesn’t，want to do“想做”，get fat“变胖”。故填doesn’t；want；to；get；fat。
69． important two glasses/cups of
【解析】对比中英文可知，空处分别缺少“重要”和“两杯”；第一空，important“重要的”，形容词，在句中作表语；第二空、第三空和第四空，two glasses/cups of表示“两杯”。故填important；two；glasses/cups；of。
70． What are going to eat
【解析】句意：我打算早餐吃鸡蛋和面包。对“eggs and bread”提问，是“什么”，用what提问，主语是you，be动词用are，be going to do sth.表示“打算做某事”。故填What；are；going；to；eat。
71． How many did buy
【解析】句意：我买了一些蔬菜。划线部分some“一些”，是表示数量，vegetables是可数名词复数，用How many“多少”提问。句子结构为：How many+可数名词复数+助动词+主语+动词原形？句子为一般过去时态，助动词用过去式did，bought的动词原形为buy。故填How；many；did；buy。
72． What does have
【解析】句意：她晚饭吃鸡肉。此处是对食物进行提问，用what引导特殊疑问句，时态是一般现在时，主语是第三人称，助动词用does，后跟动词原形have。故填What；does；have。
73． Where does have
【解析】句意：鲍勃叔叔有时在家吃午饭。划线部分是地点，疑问词用where；根据“has”可知变疑问句时借助助动词does，后加动词原形have。故填Where；does；have。
74． How many
【解析】句意：我们想要二斤橘子。划线部分“two kilos of二斤”，后面“oranges”是可数名词复数。对可数名词的量提问用how many“多少”。故填How；many。
75． What/How about
【解析】句意：让我们吃一些胡萝卜吧。原句表示提议，根据“eating”可知，此处可用what/how about进行替换，句首需大写首字母。故填What/How；about。
76． Are any
【解析】句意：有一些西红柿。原句是there be句型，改一般疑问句时将be动词are提前，首字母大写，原句中不定代词some，变成一般疑问句时要把some变成any。故填Are；any。
77． Does your have
【解析】句意：我爸爸有一根鱼竿。原句谓语动词是has，一般疑问句将助动词Does放句首，其后用动词原形，第一人称my改为your，故填Does；your；have。
78． no or
【解析】句意：桌子上也有一些西红柿和芒果。分析题干可知，第一空可填no“没有”表示否定；在否定句中，要将and改为or。故填no；or。
79． These are some/many apple trees
【解析】句意：这是一棵苹果树。改为复数句时，this变为对应的复数形式these，be动词用复数形式are，an apple tree变为复数some/many apple trees。故填These；are；some/many；apple；trees。

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