2026秋译林版五年级英语上册 Unit4 Safety first 语法讲义+练习题（含答案）

2026秋新教材译林版五年级上册英语Unit4Safetyfirst语法讲义+练习题

语法点：情态动词should和shouldn't的用法

语法讲解

should是情态动词，意思是"应该"，表示建议、责任或义务。它的否定形式是shouldn't=should

not,意思是"不应该"。

•肯定句结构：主语+should+动词原形+其他

•否定句结构：主语+shouldnt+动词原形+其他.

•一般疑问句结构：Should+主语+动词原形+其他？

°肯定回答：Yes,主语+should.

。否定回答：No,主语+shouldn't.

教材例句解析

1.Youshouldwarmupfirst,Willy.(教材P46)

。解析：这是should的肯定句，should后面跟动词原形warmup,表示"你应该先热身”。

2.Weshouldn'tswimhere.(教材P46)

。解析：这是should的否定句，shouldn't后面跟动词原形swim,表示"我们不应该在这里游

泳”，

3.Weshouldalsokeeptotheright.(P49)

。解析：should后面跟动词原形keep,表示“我们也应该靠右走

4.Weshouldn'trunoithestairs.(P49)

。解析：shouldn't后面跟动词原形run,表示“我们不应该在楼梯上跑二

易错点

•should和shouldn't后面必须跟动词原形,不能跟动词的其他形式

•should是情态动词，没有人称和数的变化

•一般疑问句把Should提到句首，首字母大写

课堂练习

选择题

1.Youwarmupbeforeswimming.

A.shouldB.shouldn'tC.can

答案：A

解析：游泳前应该热身，所以用should.

2.Werunonthestairs.

A.shouldB.shouldn'tC.can

答案：B

解析：我们不应该在楼梯上跑，所以用shouldn't

3.YoupushothersinPEclass.

A.shouldB.shouldn'tC.can

答案：B

解析：体育课上不应该推别人，所以用shouldn't

4.Wekeeptotherightonthestairs.

A.shouldB.shouldn'tC.can

答案：A

解析：在楼梯上我们应该靠右走，所以用

shouldo

5ShouldIsitdownrightafterrunning?

A.Yes,youshould.B.No,youshouldn't.C.Yes,youcan.

答案：B

解析：的步后不应该马上坐下，所以用否定回答。

填空题

1.You(should/shouldn't)listentotheteachercarefullyinclass.

答案:should

解析：课堂上应该认真听老师讲课，所以用

•shouldo

2.We(should/shouldn't)jumpfromthestairs.

答案:shouldn't

解析：我们不应该从楼梯上跳下来,所以用shouldn't

3.You(should/shouldn't)warmupbeforedoingsports.

答案:should

解析：做运动前应该热身,所以用

shouldo

Unit4语法专项练习

一、单项选择(10道)

1.Youwarmupbeforeswimming.

A.shouldB.shouldn'tC.can

2.Werunonthestairs.

A.shouldB.shouldn'tC.can

3.YoupushothersinPEclass.

A.shouldB.shouldn'tC.can

4.Wekeeptotherightonthestairs.

A.shouldB.shouldn'tC.can

5.ShouldIsitdownrightafterrunning?

A.Yeszyoushould.B.No,youshouldn't.C.Yes,youcan.

6.Youswimintheriver.It'sdangerous.

A.shouldB.shouldn'tC.can

7.Wehelpotherswhentheyareintrouble.

A.shouldB.shouldn'tC.can

8.Youplayfootballinthestreet.

A.shouldB.shouldn'tC.can

9.Wecleanourclassroomeveryday.

A.shouldB.shouldn'tC.can

Shouldwecrosstheroadwhenthetrafficlightisred?

A.Yes,weshould.B.No,weshouldn't.C.Yes,wecan.

二、用所给单词的适当形式填空（10道）

1.Youshould（listen）totheteachercarefully.

2.Weshouldn't（run）intheclassroom.

3.Youshould（warm）upbeforedoingsports.

4.Weshouldn't（push）others.

5.Youshould（keep）totherightonthestairs.

6.Weshouldn't（jump）fromthestairs.

7.Youshould（help）yourmotherdochores.

Weshouldn't（play）computergamestoomuch.

9.Youshould（go）tobedearly.

10.Weshouldn't（eat）toomuchjunkfood.

三、根据句子中的中文写出英文单词（10道）

1.Youshouldbeforeswimming.

2.Don't（推）others.

3.Don't（拉）myclothes.

4.Weshouldkeeptothe（右边）.

5.It'snot（安全的）.

6.Youmay（受伤）yourself.

7.Pleasewalk（慢慢地）.

8.Don't（跳）fromthestairs.

9.Weshould（帮助）others.

10.Safetycomes（第一）.

四、根据中文翻译完成句子（5道）

1.你应该先热身。

Youfirst.

2.我们不应该在这里游泳。

Wehere.

3.你不应该在楼梯上跑。

Youonthestairs.

4.我们应该靠右走。

Wetotheright.

5.你不应该马上坐下。

Yourightnow.

五、句型转换（5道）

1.Youshouldwarmupbeforeswimming.（改为否定句）

Youupbeforeswimming.

2.Weshouldrunonthestairs.（改为否定句）

Weonthestairs.

ShouldIlistentotheteachercarefully?（作肯定回答）

I.

4.Shouldweplayfootballinthestreet?（作否定回答）

5.Youshouldhelpyourmotherdochores.（改为一疑问句）

mymotherdochores?

六、情景补全对话（选择题，5道）

A:It'stimeforPEclass.Let'sgotothesportsground.

B:Becareful.1.

A:You'reright.2.

B:Andweshouldn'tjumpfromthestairs.

A:Yes.3.

B:Weshouldwarmupfirst.

A:4.____

B:Andweshouldn'tpushothers.

A:5.Safetycomesfirst.

1.A.Weshouldn'trunonthestairs.B.Weshouldrunonthestairs.C.Wecanrunonthestairs.

2.A.Weshouldkeeptotheright.B.Weshouldn'tkeeptotheright.C.Wecankeeptothe

right.

3.A.WhatshouldwedoinPEclass?B.Whatshouldn'twedoinPEclass?C.Whatcanwedo

inPEclass?

4.A.That'sright.B.That'sallright.C.You'rewelcome.

5.A.Iagreewithyou.B.Idon'tagreewithyou.C.Idon'tknow.

七、连词成句(5道)

1.should,warm,you,up,first(.)

2.shouldn't,we,here,swim(.)

3.shouldn't,you,on,runzthe,stairs(.)

4.should,we,keep,to,the,right(.)

5.shouldn't,you,down,sit,right,now(.)

八、完形填空(10个选择题)

Safetyisveryimportant.Weshouldknowhowtokeepsafe.Atschool,we1.runonthe

stairs.We2.keeptotheright.We3.jumpfromthestairs.InPEclass,we4.

warmupfirst.We5.pushothers.We6.pullothers'clothes.Afterrunning,we7.

sitdownrightnow.We8.walkslowly.Athome,we9.playwithfire.We10.

becarefulwithelectricity.

1.A.shouldB.shouldn'tC.can

2.A.shouldB.shouldn'tC.can

3.A.shouldB.shouldn'tC.can

4.A.shouldB.shouldn'tC.can

5.A.shouldB.shouldn'tC.can

6.A.shouldB.shouldn'tC.can

7.A.shouldB.shouldn'tC.can

8.A.shouldB.shouldn'tC.can

9.A.shouldB.shouldn'tC.can

10.A.shouldB.shouldn'tC.can

九、阅读理解（1道，5个选择题）

Schoolsafetyisveryimportant.Herearesomesafetytipsforyou.First,don'trunonthestairs.

Youshouldkeeptotheright.Second,don'tjumpfromthestairs.It'sdangerous.Third,inPE

class,youshouldwarmupfirst.Don'tpushothers.Don'tpullothers'clothes.Fourth,after

running,don'tsitdownrightnow.Youshouldwalkslowly.Fifth,don'tplaywithsharpthings.

Rememberthesetipsandkeepsafeatschool.

1.Whatshouldyoudoonthestairs?

A.Run.B.Keeptotheright.C.Jump.

2.Whatshouldn'tyoudoinPEclass?

A.Warmupfirst.B.Pushothers.C.Walkslowly.

3.Whatshouldyoudoafterrunning?

A.Sitdownrightnow.B.Walkslowly.C.Runagain.

4.Whatshouldn'tyouplaywith?

A.Sharpthings.B.Balls.C.Books.

5.Howmanysafetytipsarethereinthepassage?

A.Four.B.Five.C.Six.

Unit4语法专项练习答案与详解

一、单项选择

1.答案：A

解析：游泳前应该热身，所以用shoulda

2.答案：B

解析：我们不应该在楼梯上跑，所以用shouldn't

3.答案：B

解析：体育课上不应该推别人，所以用shouldn't

4.答案：A

解析：在楼梯上我们应该靠右走，所以用shouldo

5.答案：B

解析：跑步后不应该马上坐下，所以用否定回答。

6.答案：B

解析：在河里游泳很危险，所以不应该在河里游泳，用shouldn't.

7.答案：A

解析：当别人有困难时我们应该帮助他们，所以用shoulde

8.答案：B

解析：不应该在街上踢足球,所以用shouldn't

9.答案：A

解析：我们应该每天打扫教室，所以用should。

10.答案：B

解析：红灯时不应该过马路，所以用否定回答。

二、用所给单词的适当形式填空

1.答案：listen

解析：should后面跟动词原形，所以用listen。

2.答案：run

解析：shouldn't后面跟动词原形,所以用runo

3.答案：warm

解析：should后面跟动词原形，所以用warm0

4.答案：push

解析：shouldn't后面跟动词原形，所以用push。

5.答案：keep

解析：should后面跟动词原形，所以用keep。

6.答案：jump

解析：shouldn't后面跟动词原形，所以用jump。

7.答案：help

解析：should后面跟动词原形，所以用helpo

8.答案：play

解析：shouldn't后面跟动词原形,所以用play。

9.答案：go

解析：should后面跟动词原形，所以用go。

10.答案：eat

解析：shouldn't后面跟动词原形，所以用eato

三、根据句子中的中文写出英文单词

1.答案：warmup

解析：‘热身"的英文是warmup,should后面跟动词原形。

2.答案：push

解析：.推"的英文是push,don't后面跟动词原形。

3.答案：pull

解析：'拉”的英文是pull,don't后面跟动词原形。

4.答案：right

解析：.右边”的英文是right。

5.答案：safe

解析："安全的"的英文是safe。

6.答案：hurt

解析："受伤”的英文是hurt,may后面跟动词原形。

7.答案：slowly

解析："慢慢地"的英文是slowly,是副词。

8.答案：jump

解析：‘跳"的英文是jump,don't后面跟动词原形。

9.答案：help

解析：,帮助"的英文是help,should后面跟动词原形。

10.答案：first

解析："第一”的英文是first。

四、根据中文翻译完成句子

1.答案：shouldwarmup

解析：’应该"用,后面跟动词原形

shouldwarmupo

2.答案：shouldn'tswim

解析：.不应该“用shouldn't,后面跟动词原形swim。

3.答案：shouldn'trun

解析：,不应该"用shouldn't,后面跟动词原形run。

4.答案:shouldkeep

解析：'应该"用,后面跟动词原形

shouldkeepo

5.答案:shouldn'tsitdown

解析：‘不应该"用,后面跟动词原形

shouldn'tsitdowno

五、句型转换

1.答案：shouldn'twarm

解析：should的否定形式是shouldn't,后面跟动词原形warm。

2.答案：shouldn'trun

解析：should的否定形式是shouldn't,后面跟动词原形run。

3.答案：Yes,youshould

解析：T殳疑问句用Should开头，肯定回答用"Yes,主语+should."。

4.答案：No,weshouldn't

解析：T殳疑问句用Should开头,否定回答用"N。,主语+shouldn't.".

5.答案：ShouldIhelp

解析：T殳疑问句把should提?峋首，首字母大写，后面跟主语I和动词原形help.

六、情景补全对话

1.答案：A

解析：根据上一句"Becareful.”可知，这里是说"我们不应该在楼梯上跑”，所以选A。

2.答案：A

解析：这里是说“我们应该靠右走"，所以选A。

3.答案：A

解析：根据答语"Weshouldwarmupfirst.”可知，问句是问"体育课上我们应该做什么？”,所以选

A。

4.答案：A

解析：同意对方的观点用“That'sright.",所以选A。

5.答案：A

解析：根据下一句"Safetycomesfirst.”可知，这里是说“我同意你的观点"，所以选A。

七、连词成句

1.答案:Youshouldwarmupfirst.

解析：这是一个肯定句，主语是，情态动词后面跟动词原形,状语是

Youshould,warmupfirst0

2.答案：Weshouldn'tswimhere.

解析：这是一个否定句，主语是We，情态动词shouldn't,后面跟动词原形swim,状语是here。

3.答案：Youshouldn'trunonthestairs.

解析：这是一个否定句,主语是You,情态动词shouldn't,后面跟动词原形run,状语是onthe

stairso

4.答案:Weshouldkeeptotheright.

解析：这是一个肯定句，主语是We,情态动词should,后面跟动词原形keeptotherigh