七年级下册（2024）Unit 1 Animal friends一课一练

这是一份七年级下册（2024）Unit 1 Animal friends一课一练，共25页。试卷主要包含了根据句意及所给提示填空，用括号内所给单词的适当形式填空， 根据汉语意思完成句子，补全下面的填空，其中有两项多余，完形填空等内容，欢迎下载使用。
分层练习
一、根据句意及所给提示填空
1. The ____________(长颈鹿) eat leaves and they are really friendly.
2. ___________(鹰) can fly with tw big wings and they lk s cl.
3. There are many animals in the z, like bears, pigs, kangars, and ___________(企鹅).
4.I dn’t really _______(在乎) if I am ne f the tp students.
5. Mna likes Chinese fd and Map tfu is her ____________ ( 最爱).
二、用括号内所给单词的适当形式填空
6. There are tw red ____________(fx)running after a rabbit in the fields.
7. ___________(wlf) can run fr hurs withut having a rest.
8. — Let’s _______(g) fr a walk in the park.
— Sunds great.
9. Tm likes t tell ___________(fun) jkes and ften makes me laugh.
10. The mther bird gives fd t her ___________ (baby) and they are hungry nw.
三、 根据汉语意思完成句子
11. 熊猫是我最喜爱的动物，它们属于中国，也属于世界。
Pandas are my __________ _________. They belng t China and belng t the wrld, t.
12. Lucy 说她能够照顾好她自己和她妹妹。
Lucy says she can _______ _______ _______ f herself and her sister.
13. — Kathy，你为什么喜欢考拉？
—因为它们有点可爱。
— Kathy, _______ _______ _______ like kalas?
— Because they are kind f cute.
14. —这只老虎来自哪里？
—它来自中国。
— _________ _______ the tiger _______?
— It _______ _______ China.
四、补全下面的填空，其中有两项多余
A；What d yu want t d this Sunday?
B：15. _______
A：Is the z far frm yur hme?
B：N. 16. _______
A：Well. 17. _______
B：I want t see pandas. They’re my favurite animals.
A：18. _______
B：Because they’re very cute and kind f shy.
A：I like them, t. 19. _______
B：Sure. I’m happy that yu can g with me.
A. What animals d yu want t see?
B. When d yu g t the z?
C. It takes nly 20 minutes t g there by bus.
D. Can I g t the z with yu?
E. I want t g t the z.
F. Where are they frm?
G. Why d yu like them?
五、完形填空。
Peple will use rbts in many fields in the future. In the factries, rbts will d a lt f hard wrk fr wrkers. And sme wrk is t 20. ______ fr peple t d, s t keep peple safe (安全的) , we use rbts t d it. And when we have21. ______ in ther cuntries, rbts can still wrk n.
In sme restaurants, rbts can give us 22.______ like waiters. When peple rder the meals, the rbts will keep them in mind and then serve the fd. Nw, the service rbts are becming mre and mre 23.______. Because they are ready t help peple in need.
In 24.______, rbts are als in use. When peple are ill and want t see the dctrs, the rbts can 25.______ them hw t find the prper (合适的) dctrs. If the patients can’t 26.______ by themselves, the rbts can even take them t the dctr’s ffice. After the dctr checks the patients, the rbts can als tell the patients hw t take the 27.______. What a gd helper!
In sme schls, rbts can wrk as teachers. They teach the students 28.______ And their classes are 29.______. All f the students like their rbt teachers.
20.A．persnalB．creativeC．dangerusD．difficult
21.A．hlidaysB．termsC．resultsD．rms
22.A．mneyB．serviceC．cultureD．luck
23.A．traditinalB．angryC．ppularD．freign
24.A．schlsB．restaurantsC．theatersD．hspitals
25.A．shwB．lseC．studyD．pllute
26.A．happenB．breakC．mveD．pen
27.A．lessnB．exampleC．pictureD．medicine
28.A．heavilyB．quicklyC．carefullyD．early
29.A．unluckyB．interestingC．seriusD．bring
参考答案
一、giraffes；Eagles；penguins；care；favurite
二、fxes；Wlves；g；funny；babies
三、favurite animals；take gd care；why d yu；Where is; frm; is frm
四、ECAGD
五、CABCD ACDCB
Unit 1 Animal Friends Sectin A Grammar
分层练习
一、单项选择题
1. - Where ____ the lins frm? - They ____ frm Africa.
A. are; cme B. d; cme C. are; are D. d; are
2. I like penguins because they are ____.
A. fierce B. cute C. strng D. wild
3. - What ____ yur favrite animal? - My favrite animal is the tiger.
A. is B. are C. d D. des
4. There are many ____ in the muntains.
A. wlf B. wlves C. wlfs D. wlfes
5. - Why d yu like eagles? - ____ they are majestic.
A. S B. But C. Because D. And
6. The bk n the desk ____ mine.
A. is B. are C. be D. am
7. - Hw many ____ are there in the z? - There are many kinds.
A. animal B. animals C. an animal D. the animals
8. - ____ is yur schlbag? - It's blue.
A. What B. Where C. Why D. What clr
9. - ____ d yu g t schl? - By bus.
A. Hw B. What C. Why D. When
10. There ____ sme water in the glass.
A. is B. are C. have D. has
11. - ____ are yu frm? - I'm frm China.
A. What B. Where C. Why D. Hw
12. - ____ is yur father? - He is a dctr.
A. What B. Where C. Why D. Hw
13. - ____ d yu like English? - Because it's interesting.
A. What B. Where C. Why D. Hw
14. These ____ are very beautiful.
A. leaf B. leaves C. leafs D. leafes
15. - What time ____ it nw? - It's 3 'clck.
A. is B. are C. be D. am
16. There are sme ____ n the tree.
A. bird B. birds C. a bird D. the birds
17. - ____ yur favrite subject? - My favrite subject is math.
A. What's B. Where's C. Why's D. Hw's
18. - Why ____ yu late fr schl? - Because I missed the bus.
A. are B. is C. d D. des
19. She ____ a bk in her hand.
A. have B. has C. is D. are
20. - ____ is the weather like tday? - It's sunny.
A. What B. Where C. Why D. Hw
用所给单词的适当形式填空
1. There are many ____ (bk) n the shelf.
2. The ____ (child) are playing games in the park.
3. We have sme ____ (tmat) in the basket.
4. These ____ (pian) are very expensive.
5. The ____ (knife) n the table are sharp.
6. There are sme ____ (bx) under the bed.
7. The ____ (baby) are sleeping.
8. Hw many ____ (city) d yu knw?
9. There are many ____ (wlf) in the frest.
10. These ____ (leaf) turn yellw in autumn.
11. There are sme ____ (pht) n the wall.
12. The ____ (man) ver there are my teachers.
13. She has sme ____ (key) in her pcket.
14. There are many ____ (muse) in the huse.
15. The ____ (sheep) are eating grass n the hill.
16. There are sme ____ (bus) n the rad.
17. The ____ (wman) in the red dress is my mther.
18. There are many ____ (fish) in the river.
19. The ____ (x) are wrking in the field.
20. There are sme ____ (deer) in the z.
三、句型转换（每题2分，共20分）
1. I like mnkeys because they are cute.（对划线部分提问）
____ d yu like mnkeys?
2. They are frm Africa.（对划线部分提问）
____ are they frm?
3. My favrite animal is the panda.（对划线部分提问）
____ is yur favrite animal?
4. There are many students in the classrm.（改为一般疑问句）
____ there many students in the classrm?
5. She likes apples.（改为否定句）
She ____ like apples.
6. He is frm China.（对划线部分提问）
____ is he frm?
7. I g t schl by bike.（对划线部分提问）
____ d yu g t schl?
8. They have sme bks.（改为一般疑问句）
____ they have sme bks?
9. The bk is very interesting.（改为感叹句）
____ interesting the bk is!
10. She is a beautiful girl.（改为复数形式）
They ____ beautiful girls.
参考答案
1. - Where ____ the lins frm? - They ____ frm Africa.
- 答案：C
- 解析：“be frm”表示“来自”，主语lins是复数，所以用are；“cme frm”也表示“来自”，其疑问句形式为“助动词 + 主语 + cme frm”，这里主语是they，复数，助动词用d，但是根据原句结构和回答，这里用be frm更合适，所以选C。
2. I like penguins because they are ____.
- 答案：B
- 解析：企鹅通常给人的印象是可爱的，fierce（凶猛的）、strng（强壮的）、wild（野生的、狂野的）不符合企鹅的常见特点，所以选cute（可爱的），答案为B。
3. - What ____ yur favrite animal? - My favrite animal is the tiger.
- 答案：A
- 解析：询问“你最喜欢的动物是什么”，用What is，yur favrite animal是单数概念，所以用is，答案为A。
4. There are many ____ in the muntains.
- 答案：B
- 解析：wlf的复数形式是wlves，以f结尾的名词变复数，一般把f变为v，再加 -es，所以选B。
5. - Why d yu like eagles? - ____ they are majestic.
- 答案：C
- 解析：回答why引导的疑问句，用because引导原因状语从句，所以选C。
6. The bk n the desk ____ mine.
- 答案：A
- 解析：bk是单数，所以用is，答案为A。
7. - Hw many ____ are there in the z? - There are many kinds.
- 答案：B
- 解析：many后接可数名词复数，animal的复数是animals，所以选B。
8. - ____ is yur schlbag? - It's blue.
- 答案：D
- 解析：根据回答“它是蓝色的”，可知是询问颜色，用What clr，所以选D。
9. - ____ d yu g t schl? - By bus.
- 答案：A
- 解析：根据回答“乘公共汽车”，可知是询问方式，用Hw，所以选A。
10. There ____ sme water in the glass.
- 答案：A
- 解析：water是不可数名词，所以用is，答案为A。
11. - ____ are yu frm? - I'm frm China.
- 答案：B
- 解析：根据回答“我来自中国”，可知是询问来自哪里，用Where，所以选B。
12. - ____ is yur father? - He is a dctr.
- 答案：A
- 解析：根据回答“他是一名医生”，可知是询问职业，用What，所以选A。
13. - ____ d yu like English? - Because it's interesting.
- 答案：C
- 解析：根据回答“因为它有趣”，可知是询问原因，用Why，所以选C。
14. These ____ are very beautiful.
- 答案：B
- 解析：leaf的复数形式是leaves，所以选B。
15. - What time ____ it nw? - It's 3 'clck.
- 答案：A
- 解析：it是第三人称单数，所以用is，答案为A。
16. There are sme ____ n the tree.
- 答案：B
- 解析：bird的复数形式是birds，sme后接可数名词复数，所以选B。
17. - ____ yur favrite subject? - My favrite subject is math.
- 答案：A
- 解析：询问“你最喜欢的学科是什么”，用What's，所以选A。
18. - Why ____ yu late fr schl? - Because I missed the bus.
- 答案：A
- 解析：be late fr是固定短语，“你为什么迟到”，主语是yu，所以用are，答案为A。
19. She ____ a bk in her hand.
- 答案：B
- 解析：she是第三人称单数，“有”用has，所以选B。
20. - ____ is the weather like tday? - It's sunny.
- 答案：A
- 解析：询问天气用What is the weather 所以选A。
二、用所给单词的适当形式填空
1. There are many ____ (bk) n the shelf.
- 答案：bks
- 解析：bk的复数形式是bks，many后接可数名词复数。
2. The ____ (child) are playing games in the park.
- 答案：children
- 解析：child的复数形式是children，根据后面的are可知主语是复数。
3. We have sme ____ (tmat) in the basket.
- 答案：tmates
- 解析：tmat的复数形式是tmates，sme后可接可数名词复数。
4. These ____ (pian) are very expensive.
- 答案：pians
- 解析：pian的复数形式是pians，these后接可数名词复数。
5. The ____ (knife) n the table are sharp.
- 答案：knives
- 解析：knife的复数形式是knives，根据后面的are可知主语是复数。
6. There are sme ____ (bx) under the bed.
- 答案：bxes
- 解析：bx的复数形式是bxes，sme后接可数名词复数。
7. The ____ (baby) are sleeping.
- 答案：babies
- 解析：baby的复数形式是babies，根据后面的are可知主语是复数。
8. Hw many ____ (city) d yu knw?
- 答案：cities
- 解析：city的复数形式是cities，Hw many后接可数名词复数。
9. There are many ____ (wlf) in the frest.
- 答案：wlves
- 解析：wlf的复数形式是wlves，many后接可数名词复数。
10. These ____ (leaf) turn yellw in autumn.
- 答案：leaves
- 解析：leaf的复数形式是leaves，these后接可数名词复数。
11. There are sme ____ (pht) n the wall.
- 答案：phts
- 解析：pht的复数形式是phts，sme后接可数名词复数。
12. The ____ (man) ver there are my teachers.
- 答案：men
- 解析：man的复数形式是men，根据后面的are可知主语是复数。
13. She has sme ____ (key) in her pcket.
- 答案：keys
- 解析：key的复数形式是keys，sme后接可数名词复数。
14. There are many ____ (muse) in the huse.
- 答案：mice
- 解析：muse的复数形式是mice，many后接可数名词复数。
15. The ____ (sheep) are eating grass n the hill.
- 答案：sheep
- 解析：sheep单复数同形，根据后面的are可知是复数概念，但形式不变。
16. There are sme ____ (bus) n the rad.
- 答案：buses
- 解析：bus的复数形式是buses，sme后接可数名词复数。
17. The ____ (wman) in the red dress is my mther.
- 答案：wmen
- 解析：wman的复数形式是wmen，根据后面的is可知这里是特指一个女人，但是前面有the，说明是指一类女人，所以用复数形式。
18. There are many ____ (fish) in the river.
- 答案：fish
- 解析：fish表示“鱼”时，单复数同形，many后可接复数概念的fish。
19. The ____ (x) are wrking in the field.
- 答案：xen
- 解析：x的复数形式是xen。
20. There are sme ____ (deer) in the z.
- 答案：deer
- 解析：deer单复数同形，sme后可接复数概念的deer。
三、句型转换
1. I like mnkeys because they are cute.（对划线部分提问）
- 答案：Why
- 解析：对原因提问用Why。
2. They are frm Africa.（对划线部分提问）
- 答案：Where
- 解析：对地点提问用Where。
3. My favrite animal is the panda.（对划线部分提问）
- 答案：What
- 解析：对事物提问用What。
4. There are many students in the classrm.（改为一般疑问句）
- 答案：Are
- 解析：there be句型的一般疑问句，将be动词提前，所以是Are there...。
5. She likes apples.（改为否定句）
- 答案：desn't
- 解析：一般现在时，主语是第三人称单数，否定句用desn't + 动词原形。
6. He is frm China.（对划线部分提问）
- 答案：Where
- 解析：对地点提问用Where。
7. I g t schl by bike.（对划线部分提问）
- 答案：Hw
- 解析：对方式提问用Hw。
8. They have sme bks.（改为一般疑问句）
- 答案：D
- 解析：一般现在时，主语是they，一般疑问句用助动词D。
9. The bk is very interesting.（改为感叹句）
- 答案：Hw
- 解析：感叹句结构：Hw + 形容词 + 主语 + 谓语！
10. She is a beautiful girl.（改为复数形式）
- 答案：are
- 解析：is的复数是are，girl的复数是girls。18. fish
19. xen
20. deer
三、句型转换
1. Why
2. Where
3. What
4. Are
5. desn't
6. Where
7. Hw
8. D
9. Hw
10. are
Unit1 Animal Friends Sectin A(2a-2f)
分层练习
I.用所给单词的适当形式填空
1. I like penguins because they are (lve).
2. The (fun)mnkey ften makes me laugh.
3. The bk abut animals is s (interested).
4. Tm and Susan nly have sme (sandwich)fr lunch.
5. The baby eagle can't fly like ther (bird).
Ⅱ.从方框中选择恰当的单词，并用其适当形式完成句子
give, walk, clse, warm,swim
6. Mary usually in the park with her parents after dinner.
7. The park is t my huse, s I ften g there n ft.
8. Susan ften fd t her pet dg after schl.
9. My cusin Peter ften in the lake n the farm.
10. It's cld tday, s yu need t wear yur clthes.
Ⅲ.单项选择
( )11.—What d yu usually have fr lunch?
-A beef .I like it very much.
A.bread B.milk C. sandwich D. fish
( )12.-Lk! The little cat can walk n tw legs.
-Yes. It's really .
A.amazing B. useful C. bring D. full
( )13.-Helen can help us with ur English.
- ! I'm sure we can learn it well.
A.Special B. Cl C. Interesting D. Funny
( )14. I think Jenny can d well at schl. She is s .
A.handsme B.imprtant C. interested D. smart
( )15.- ?
-Australia. It's very far frm here.
A. Hw d yu get here B. Where are yu frm
C. Why d yu cme here D. When d yu g there
Ⅳ.根据汉语提示完成下面的句子，每空一词
16.牛奶对我们有好处。
Milk us.
17.不要靠近那只动物站着。
Dn't t that animal.
18.我喜欢玛丽走路的样子。
I like Mary .
19.这些衣服能帮我们保暖。
The clthes can help us .
20.看！他们在那边。
Lk! .
V.完形填空
It's Sunday tday. My parents dn't g t wrk and I dn't g t schl. S we g t the 21 tgether. It's ne f my favurite places and I can see lts f 22 there.
We g t 23 the penguins first. They are frm Antarctica. They are clever and 24 .Then we g t see the pandas. These black and white animals are a 25 f China. Many peple in ther cuntries like them very much. After lunch, I see tw 26 and their tw babies. The mther fx and the father fx 27 their babies. Lastly, we see the giraffes and tigers. The giraffes have lng 28 ,s they can reach leaves(叶子) n tall trees. They are 29 beautiful and I like them very much.But I dn't like the tigers30 they are scary (吓人的).
I am happy t see these animals and I have a gd time tday.
( ) B. z C.club D. schl
( )22. A.trees B. animals C.pictures D.bks
( )23. A.see B.read C.climb D.finish
( )24. A.dirty B.dangerus C. meaningful D.lvely
( )25. A.name B.mistake C.symbl D.language
( )26. A.fxes B. eagles C.bears D.wlves
( )27. A. get t knw B. take gd care f
C. make gd use f D. make a wish
( ) B.hairs C. necks D. faces
( )29. A, just B.still C.nly D.really
( )30. A.and B.but C.because D.s
Ⅵ.阅读理解
Welcme t ur z! My name is Tny. I am yur guide(导游) tday. Here are sme new friends in ur z. Cme and have a lk.
Meimei is a cute panda. She is three years ld.She is frm China. She likes eating bamb(竹子)very much. Smetimes she eats the apple. It's her favurite fruit. Meimei lives next t her friend Lingling. Peple in ur z all like them very much.
Nick is a strng lin. He is five years ld. He is frm Africa. He usually eats meat. Sme peple are afraid f him. Dn't cme clse t him. It's very dangerus.
The tw giraffes are Gina and Tiffany. They are frm Africa. Gina is seven years ld. Tiffany is six years ld. They are very smart. Tiffany likes playing with peple. They bth like eating leaves.
Sam and Simn are penguins frm Antarctica.They are f the same age. Sam and Simn are very cute and they are stars in ur z. A lt f peple cme t see them every day.
( )31. What fd des Meimei like?
A. Bamb and apples. B. Meat and apples.
C. Bamb and grass. D. Grass and meat.
( )32. Wh are frm the same place?
A. Nick and Gina. B. Tiffany and Sam.
C. Simn and Tiffany. D. Nick and Sam.
( )33. Hw are the giraffes?
A. Cute. B. Smart. C. Strng. D. Dangerus.
( )34. What animals are the stars in the z?
A. The pandas. B. The lins.
C. The giraffes. D. The penguins.
( )35. Which f the fllwing statements is TRUE?
A. Meimei is the star in the z.
B. Nick is very strng and smart.
C. Gina likes t play with peple.
D. Sam and Simn are welcme in the
参考答案
I. 1. lvely 2. funny 3.interesting 4. sandwiches 5. birds
II. 6. walks 7. clse 8. gives 9. swims 10. warm
III. 11-15 CABDB
IV. 16. is gd fr 17. stand clse 18. hw; walks 19. keep warm
20. There they are
V. 21-25 BBADC 26-30 ABCDC
VI. 31-35 AABDD


人教版七年级下册 Unit 1 Sectin B 1a - 1d
分层练习
一、语法选择题（20题）
1. Elephants are knwn fr their large size. They are much ______ than mst ther animals.
A. big B. bigger C. biggest
2. The elephant is ______ natinal animal f Thailand, and it plays an imprtant rle in Thai culture.
A. a B. an C. the
3. Elephants lk very different frm ther animals. Their trunks are used ______ many things.
A. d B. t d C. ding
4. ______ d elephants live? They live in frests and grasslands.
A. WhatB. Where C. Hw
5. My sister lves elephants very much. She likes them ______ than any ther animals.
A. better B. best C. mre better
6. Peple shuld stp killing elephants fr ivry, ______ they are in danger.
A. because B. s C. but
7. The big elephants ften help the baby elephants. They lk after ______ well. 、
A. they B. them C. their
8. Elephants can remember places with fd and water after many years. It shws that they are very ______.
A. strng B. kind C. intelligent
9. On 13 March, Thai peple celebrate Thai Elephant Day. ______ is a special day fr elephants. A. It B. This C. That
10. We shuld save the frests. ______, the elephants will have n place t live.
A. Otherwise B. Hwever C. Mrever
11. Which sentence is crrect?
A. The elephant is symbl f gd luck.
B. The elephant is a symbl f gd lucks.
C. The elephant is a symbl f gd luck.
12. Elephants have large ears and lng trunks, and ______ make them lk unique.
A. it B. this C. these
13. I dn't knw if elephants can swim. Can yu tell me ______?
A. if B. that C. what
14. The elephant is huge. It is ne f the ______ animals n land.
A. big B. bigger C. biggest
15. They play in the water. They are great ______.
A. swim B. swims C. swimmers
16. Peple cut dwn t many trees, and elephants are lsing their habitats. We must ______ cutting dwn trees.
A. stp B. t stp C. stpping
17. ______ elephant is yur favrite?
A. What B. Which C. Where
18. Elephants are like us in sme ways. They are als very ______.
A. playful B. play C. played
19. We shuld nt buy things made f ivry. ______ things made f ivry helps prtect elephants. A. Buying B. Buy C. T buy
20. The elephant uses its trunk t pick up heavy things. It's very ______.
A. use B. useful C. used
二、完成句子（20题）
1. 大象看起来与其他动物非常不同。
Elephants lk very ______ ther animals.
它们是好运的象征。
They are a symbl f ______.
大象能用它们的鼻子做什么？
What can elephants d ______ their trunks?
大象在某些方面像人类。
Elephants are like humans ______ sme ways.
泰国大象日在什么时候？
When is ______ Elephant Day?
人们应该停止砍伐树木。
Peple shuld ______ cutting dwn trees.
大象很友善，它们会照顾彼此。
Elephants are very kind and they ______ each ther.
大象是泰国文化的重要部分。
Elephants are an imprtant ______ f Thai culture.
我们应该拯救森林来保护大象
We shuld save the frests ______ prtect elephants.
这头大象比那头大象大。
This elephant is ______ than that ne.
大象是非常聪明的动物。
Elephants are very ______ animals.
它们能记住多年前有食物和水的地方。
They can remember places with fd and water ______ many years.
不要购买象牙制品
Dn't buy things ______ ivry.
大象在水中玩耍。它们是很棒的游泳者。
Elephants play in the water. They are great ______.
我们应该保护大象，因为它们处于危险之中
We shuld prtect elephants because they are ______.
大象用它们的鼻子捡起东西。
Elephants ______ things with their trunks.
你最喜欢的动物是什么？
What's yur ______ animal?
大象有大耳朵和长鼻子。
Elephants have large ______ and lng ______.
泰国人在3月13日庆祝大象日。
Thai peple celebrate Elephant Day ______ 13 March.
大象是如此可爱的动物。
Elephants are such ______ animals.
参考答案
1. B。than是比较级的标志词，big的比较级是bigger，“much + 比较级”表示“……得多”，大象比大多数其他动物大得多。
2. C。表示特指泰国的国宝动物大象，用定冠词the。
3. B。be used t d sth.表示“被用来做某事”，大象的鼻子被用来做很多事情。
4. B。根据回答“They live in frests and grasslands.”可知问的是地点，用where。
5. A。 than...表示“比起……更喜欢……”，这里表示比起其他动物更喜欢大象。
6. A。前半句“人们应该停止为了象牙杀害大象”和后半句“它们处于危险中”是因果关系，因为大象处于危险中，所以人们应该停止杀害它们，用because。
7. B。lk after是动词短语，后面接宾格them，指代baby elephants。
8. C。能记住多年前有食物和水的地方，说明大象很聪明（intelligent）。
9. A。it指代上文提到的Thai Elephant Day。
10. A。therwise表示“否则”，我们应该拯救森林，否则大象将没有地方居住。
11. C。a symbl f表示“……的象征”，luck是不可数名词，不能加s。
12. C。these指代上文提到的large ears and lng trunks，这些使它们看起来独特。
13. A。if表示“是否”，引导宾语从句，这里想知道大象是否会游泳。
14. C。ne f the + 形容词最高级 + 名词复数，表示“最……之一”，大象是陆地上最大的动物之一。
15. C。great是形容词，后面接名词swimmers，表示“游泳者”。
16. A。must是情态动词，后面接动词原形，stp ding sth.表示“停止做某事”。
17. B。which表示“哪一个”，这里问哪一种大象是你最喜欢的。
18. A。very是副词，后面接形容词playful，“很贪玩的”。
19. A。动名词短语作主语，购买象牙制品这种行为有助于保护大象。
20. B。useful是形容词，“有用的”，大象用鼻子捡起重物，这很有用。
二、完成句子答案
1. different frm。“lk different frm”表示“看起来与……不同”。
2. gd luck。“a symbl f gd luck”表示“好运的象征”。
3. with。“with + 工具”表示“用……”，这里表示用鼻子做事情。
4. in。“in sme ways”表示“在某些方面”。
5. Thai。“Thai Elephant Day”表示“泰国大象日”。
6. stp。“stp ding sth.”表示“停止做某事”。
7. lk after。“lk after”表示“照顾”。
8. part。“an imprtant part f”表示“……的重要部分”。
9. t。“t d sth.”表示目的，为了保护大象。
10. bigger。than是比较级的标志词，“is bigger than”表示“比……大”。
11. clever/intelligent。表示“聪明的”，描述大象的特征。
12. after。“after many years”表示“多年后”。
13. made f。“made f ivry”表示“由象牙制成的”，过去分词短语作后置定语。
14. swimmers。根据上文“它们在水中玩耍”可知是很棒的游泳者。
15. in danger。“in danger”表示“处于危险中”。
16. pick up。“pick up”表示“捡起”。
17. favurite。“favurite animal”表示“最喜欢的动物”。
18. ears; trunks。描述大象的外貌特征。
19. n。在具体的日期前用介词n。
20. lvely/cute。表示“可爱的”，形容大象。