人教版（2024）八年级上册（2024）Unit 8 Let's Communicate! Section B课时作业

这是一份人教版（2024）八年级上册（2024）Unit 8 Let's Communicate! Section B课时作业，共8页。
【语法聚焦一】条件状语从句
if引导的条件状语从句
if意为“如果”, 表示正面条件, 引导条件状语从句, 既可放在主句前面, 也可放在主句后面。
If yu g t the party, yu'll have a great time. 如果你去参加聚会, 你将会玩得很开心。
My mther will take me t the park if she is free我妈妈如果有空, 就会带我去公园
考点：
if条件句的时态搭配
1.if从句用一般现在时, 主句用一般将来时(主将从现)
If he runs, he'll get there in time.如果他用跑的, 他就会及时赶到那儿。
The cat will scratch yu if yu pull her tail如果你拉猫的尾巴, 它就会抓你。
2.if从句用一般现在时, 主句谓语含may/ might/can(主情从现)
If the fg gets thicker, the plane may be diverted. 如果再大一些, 飞机可能就会改在别的机场降落。
If it stps snwing, we can g ut. 如果雪停了, 我们就可以出去。
3.if从句用一般现在时, 主句是祈使句。(主祈从现)
Wrk hard if yu want t get gd grades. 你如果想取得好成绩, 就要努力学习。
unless引导条件状语从句
unless意为“除非;如果不”, 引导条件状语从句, 相当于
I wn't g t his party unless he invites me. =If he desn’t invite me, I wn’t g t his party.
如果他不邀请我, 我将不会参加他的聚会。
考点：
当主句用一般将来时或是祈使句时, unless引导的从句常用一般现在时。(主将从现/主祈从现)
There will be mre pllutin unless peple drive less. 如果人们不少开车, 将会有更多污染。
Dn't pur the water int the river unless yu make sure it is clean enugh.
不要把水倒进河里, 除非你们保证它足够干净。
区分if引导的条件状语从句和if引导的宾语从句
在条件状语从句中, if表示“如果”；而在宾语从句中, if表示“是否”。可以用从句前置法区分, if引导的条件状语从句, 可以放在主句之前并用逗号隔开, 也可放在主句之后；而if引导的宾语从句只能放在主句之后。因此如果把if放在主句之前, 句子通顺, 意义不变, 则是条件从句, 否则是宾语从句。
He will help yu if yu ask him. = If yu ask him, he will help yu. 如果你问他, 他会帮助你。
用所给词的适当形式填空
If I cme, I ______________( see ) yu.
If it is fine, we______________( g ) fr a walk.
If it rains tmrrw, they______________( stay ) at hme.
Yu will spil it if yu______________( nt be ) careful.
We will be very much pleased if yu______________( cme ).
If yu______________(feel) tired, yu______________ (have) t have a rest.
Where______________he ____________ (see) the film if he______________(have) time?
If there______________ (be) fewer trees, there______________(be) mre pllutin(污染).
If Marcia______________(live) alne, she______________(keep) a pet dg.
Lana______________(buy) a new dress if the ld ne______________(be) ut f style.
If Mr. Green__________(say) I am hard- wrking, my parents__________(feel) glad.
I__________(g) t the beach if it__________(nt rain) this week.
__________they__________(have) a match if the P.E. teacher__________(be) nt busy?
He__________(write) a letter t his grandparents if he__________(get) his reprt card this week.
If she__________(get) up late, she__________(nt catch) the early bus.
二、单项选择
( )1.Why nt ask yur teacher fr help__________yu dn't knw it?
A. if B. that C. thugh D. whether
( )2. I’ll give the bk t him if he__________here next Sunday.
A. will cme B. cmes C. is cming D. came
( )3.We will have a sprts meeting if it__________rain tmrrw.
A. wn’t B. isn't C. dn't D. desn't
( )4. If yu__________t the party, yu’ll have a great time.
A. will g B. went C. g D. ging
( )5. — What are yu ging t d tmrrw? —We’ll g t the library tmrrw if it__________.
A. isn’t rain B. rain C. wn’t rain D. desn’t rain
( )6. —The bk seems a little bring. —Yu wn’t enjy it__________yu put yur heart int it.
A. when B. if C. after D. unless
( )7.–D yu knw if we will g t the cinema tmrrw? —I think we’ll g if we__________t much hmewrk.
will have B. had C. wn’t D. dn’t have
()8. —We will g fr a picnic if it________this Sunday. —Sunds great.
A. wn’t rainB. is sunnyC. will be sunnyD. isn’t sunny
()9. —I dn’t knw if Sam__________.—Dn’t wrry. I will tell yu if he__________.
will cme; cmesB. cmes; will cmeC. will cme; will cmeD. cmes; cmes
( )10. I want t knw if there__________sprts meeting next mnth. If they__________it , I must get gd ready fr it.
is; will hld B. will be; hldC. is; hld D. will be; will hld
( )11. The sprts meet will cntinue________it rains this afternn.
A. if B. until C. as sn as D. unless
( )12.—Jeff, culd yu tell me if it __________ tmrrw. If it ___________ tmrrw, I will stay at hme.
—It’s reprted that it will be sunny. Let’s g camping n the Fenghuang muntain.
A. rain；rainB. rains；rains
C. will rain；rainsD. will rain；will rain
( )13.If yu study hard, yu int a gd senir high schl.
A. gt B. will get C. get
( )14. — D yu knw when he will cme back tmrrw?
— Srry, I dn’t knw. When he ____________ back, I’ll tell yu.
cmes B. will cme C. cme D. may cme
( )15. The ftball match will be put ff if it ________.
A. will rain B. rains C. rained D. is rained
( )16._______he wrks hard n it, he will d it better.
A If B Thugh C But
( )17. I wn’t g if it ________ tmrrw.
A．rain B．is raining C．rains D．will rain
( )18. I__________ her the answer if she__________me.
A. can tell, will ask B. will tell, will ask
C. wuld tell, ask D. will tell, asks
( )19. The students will plant trees if it________tmrrw.
A.didn't rain B. hasn't rained C. wn't rain D. desn't rain
( )20. We________hme if there is n bus. —Oh, what a pity!
A. will walk B. have walked C. walked D. walk
( )21. Wh can tell me when he________tmrrw?
A.cme B. cmes C. will cme D. is ging chse
( )22.—Please tell her the news when she________. —OK, I will.
A. cmes B. will cme C. cme D. wuld cme
( )23. —Let's g climbing if it __________ this Saturday. — Gd idea. But nbdy knws if it __________.
A. is fine; rainsB. is fine; will rainC. will be fine; rainsD. will be fine; will rain
三、完成句子
如果努力学习，你就会取得好成绩。
If yu__________ __________, yu__________ __________gd__________.
他如果看电视太久了，他的父母会不高兴。
If he__________TV t much, his parents__________ __________unhappy.
如果明天不下雨，我会和你一起去公园的。
If it__________ __________tmrrw, I__________g t the park__________yu.
如果他有空，他会帮助你的。If he__________ __________, he__________ __________ yu.
你如果抄同学的作业就不能学好各门功课。
Yu__________ __________gd at all the subjects if yu__________ the ther students' hmewrk.
人教版（2024）八年级上册英语Unit 8 语法（条件状语从句）精讲精练·教师版
【语法聚焦一】条件状语从句
if引导的条件状语从句
if意为“如果”, 表示正面条件, 引导条件状语从句, 既可放在主句前面, 也可放在主句后面。
If yu g t the party, yu'll have a great time. 如果你去参加聚会, 你将会玩得很开心。
My mther will take me t the park if she is free我妈妈如果有空, 就会带我去公园
考点：
if条件句的时态搭配
1.if从句用一般现在时, 主句用一般将来时(主将从现)
If he runs, he'll get there in time.如果他用跑的, 他就会及时赶到那儿。
The cat will scratch yu if yu pull her tail如果你拉猫的尾巴, 它就会抓你。
2.if从句用一般现在时, 主句谓语含may/ might/can(主情从现)
If the fg gets thicker, the plane may be diverted. 如果再大一些, 飞机可能就会改在别的机场降落。
If it stps snwing, we can g ut. 如果雪停了, 我们就可以出去。
3.if从句用一般现在时, 主句是祈使句。(主祈从现)
Wrk hard if yu want t get gd grades. 你如果想取得好成绩, 就要努力学习。
unless引导条件状语从句
unless意为“除非;如果不”, 引导条件状语从句, 相当于
I wn't g t his party unless he invites me. =If he desn’t invite me, I wn’t g t his party.
如果他不邀请我, 我将不会参加他的聚会。
考点：
当主句用一般将来时或是祈使句时, unless引导的从句常用一般现在时。(主将从现/主祈从现)
There will be mre pllutin unless peple drive less. 如果人们不少开车, 将会有更多污染。
Dn't pur the water int the river unless yu make sure it is clean enugh.
不要把水倒进河里, 除非你们保证它足够干净。
区分if引导的条件状语从句和if引导的宾语从句
在条件状语从句中, if表示“如果”；而在宾语从句中, if表示“是否”。可以用从句前置法区分, if引导的条件状语从句, 可以放在主句之前并用逗号隔开, 也可放在主句之后；而if引导的宾语从句只能放在主句之后。因此如果把if放在主句之前, 句子通顺, 意义不变, 则是条件从句, 否则是宾语从句。
He will help yu if yu ask him. = If yu ask him, he will help yu. 如果你问他, 他会帮助你。
用所给词的适当形式填空
If I cme, I _______will see_______( see ) yu.
If it is fine, we_____will g_________( g ) fr a walk.
If it rains tmrrw, they_______will stay_______( stay ) at hme.
Yu will spil it if yu_______aren't_______( nt be ) careful.
We will be very much pleased if yu_______cme_______( cme ).
If yu_______feel_______(feel) tired, yu_______will have_______ (have) t have a rest.
Where_______will_______he ______see______ (see) the film if he_______has_______(have) time?
If there_______are_______ (be) fewer trees, there_______will be_______(be) mre pllutin(污染).
If Marcia______lives________(live) alne, she_______will keep_______(keep) a pet dg.
Lana________will buy______(buy) a new dress if the ld ne________is______(be) ut f style.
If Mr. Green_____says_____(say) I am hard- wrking, my parents_____will feel_____(feel) glad.
I_____will g_____(g) t the beach if it_____desn't rain_____(nt rain) this week.
_____Will_____they_____have_____(have) a match if the P.E. teacher_____is_____(be) nt busy?
He_____will write_____(write) a letter t his grandparents if he_____gets_____(get) his reprt card this week.
If she_____gets_____(get) up late, she_____desn't catch_____(nt catch) the early bus.
二、单项选择
( A )1.Why nt ask yur teacher fr help__________yu dn't knw it?
A. if B. that C. thugh D. whether
( B )2. I’ll give the bk t him if he__________here next Sunday.
A. will cme B. cmes C. is cming D. came
( D )3.We will have a sprts meeting if it__________rain tmrrw.
A. wn’t B. isn't C. dn't D. desn't
( C )4. If yu__________t the party, yu’ll have a great time.
A. will g B. went C. g D. ging
( D )5. — What are yu ging t d tmrrw? —We’ll g t the library tmrrw if it__________.
A. isn’t rain B. rain C. wn’t rain D. desn’t rain
( B )6. —The bk seems a little bring. —Yu wn’t enjy it__________yu put yur heart int it.
A. when B. if C. after D. unless
( D )7.–D yu knw if we will g t the cinema tmrrw? —I think we’ll g if we__________t much hmewrk.
will have B. had C. wn’t D. dn’t have
(D)8. —We will g fr a picnic if it________this Sunday. —Sunds great.
A. wn’t rainB. is sunnyC. will be sunnyD. isn’t sunny
(A)9. —I dn’t knw if Sam__________.—Dn’t wrry. I will tell yu if he__________.
will cme; cmesB. cmes; will cmeC. will cme; will cmeD. cmes; cmes
( B )10. I want t knw if there__________sprts meeting next mnth. If they__________it , I must get gd ready fr it.
is; will hld B. will be; hldC. is; hld D. will be; will hld
( D )11. The sprts meet will cntinue________it rains this afternn.
A. if B. until C. as sn as D. unless
( C )12.—Jeff, culd yu tell me if it __________ tmrrw. If it ___________ tmrrw, I will stay at hme.
—It’s reprted that it will be sunny. Let’s g camping n the Fenghuang muntain.
A. rain；rainB. rains；rains
C. will rain；rainsD. will rain；will rain
( B )13.If yu study hard, yu int a gd senir high schl.
A. gt B. will get C. get
( A )14. — D yu knw when he will cme back tmrrw?
— Srry, I dn’t knw. When he ____________ back, I’ll tell yu.
cmes B. will cme C. cme D. may cme
( B )15. The ftball match will be put ff if it ________.
A. will rain B. rains C. rained D. is rained
( A )16._______he wrks hard n it, he will d it better.
A If B Thugh C But
( C )17. I wn’t g if it ________ tmrrw.
A．rain B．is raining C．rains D．will rain
( D )18. I__________ her the answer if she__________me.
A. can tell, will ask B. will tell, will ask
C. wuld tell, ask D. will tell, asks
( D )19. The students will plant trees if it________tmrrw.
A.didn't rain B. hasn't rained C. wn't rain D. desn't rain
( A )20. We________hme if there is n bus. —Oh, what a pity!
A. will walk B. have walked C. walked D. walk
( C )21. Wh can tell me when he________tmrrw?
A.cme B. cmes C. will cme D. is ging chse
( A )22.—Please tell her the news when she________. —OK, I will.
A. cmes B. will cme C. cme D. wuld cme
( B )24. —Let's g climbing if it __________ this Saturday. — Gd idea. But nbdy knws if it __________.
A. is fine; rainsB. is fine; will rainC. will be fine; rainsD. will be fine; will rain
三、完成句子
如果努力学习，你就会取得好成绩。
If yu_____study_____ ______hard____, yu_____will_____ _____get_____gd_____grades_____.
他如果看电视太久了，他的父母会不高兴。
If he_____watches_____TV t much, his parents_____will_____ _____be_____unhappy.
如果明天不下雨，我会和你一起去公园的。
If it_____desn't_____ _____rain_____tmrrw, I______will____g t the park_____with_____yu.
如果他有空，他会帮助你的。If he_____is_____ ______free____, he_____will_____ _____help_____ yu.
你如果抄同学的作业就不能学好各门功课。
Yu______can’t____ _____be_____gd at all the subjects if yu_____cpy_____ the ther students' hmewrk.