初中英语Unit 8 Let's Communicate! Section A Grammar Focus教学ppt课件

这是一份初中英语Unit 8 Let's Communicate! Section A Grammar Focus教学ppt课件，共27页。PPT课件主要包含了一般现在，一般将来，Grammar，and，will see，drop，will give，start，Give，let等内容，欢迎下载使用。
In this lessn, we will be able t:
1. Master vcabulary: meeting, difficulty, right away, line, drp sb. a line... Understand the structure and usage f Zer & First Cnditinals.2. Use Zer & First Cnditinals t talk abut real/future situatins fluently; Use embedded vcabulary in cntext t describe cmmunicatin/plans.3. Realize the imprtance f effective cmmunicatin (linked t if-cnditinals in daily talks); Enjy grammar learning thrugh interactive games and cllabrative tasks.
Listen t the sng and cmplete the blanks.
____ yu ever find yurself stuck in the middle f the sea____ sail the wrld t find yuIf yu ever _____ yurself lst in the dark and yu can't see____ be the light t guide yu
Sing the sng tgether.
Tday we're ging t learn abut the Zer(零条件句) andFirst Cnditinals(第一条件句).S, what's the difference between them?
If yu heat ice, it melts.如果你加热冰，它就会融化。
If peple dn't drink water, they get thirsty.如果人们不喝水，他们就会口渴。
If it rains tmrrw, I will stay at hme.如果明天下雨，我就会待在家里。
If yu dn't hurry, yu will miss the bus.如果你不快点，你会错过公交车的。
另外，第一条件句分三种情况，我们稍后再学！先思考一个问题：条件状语从句和主句的位置可以调换吗？
Which sentence is right? Let’s find the answer frm 3a.If it snws tmrrw, we will make a snwman.We will make a snwman if it snws tmrrw.如果明天下雪，我们将堆雪人。
1. We’ll finish at 7:00 p.m. if it’s n time. ( 句) ( 句)2. Sme f yu may prefer texting, but it takes lnger and can make things wrse ( 句) if yu’re nt careful with yur wrds. ( 句)3. If the traffic is t bad, yu’ll have t wait fr a few minutes. ( 句) ( 句)4. If I visit China this year, I will g t the park with yu. ( 句) ( 句)
5. If everything ges well, I’ll see yu at 7:15. ( 句) ( 句)6. When will the rehearsal end if it’s n time? ( 句) ( 句)7. What will the man d if he visits China this year? ( 句) ( 句)8. If yu can’t meet, just call yur friend. ( 句) ( 句)
当表示未来可能发生的事情时，主句用一般将来时，if从句用一般现在时
当主句为祈使句时，if从句常用一般现在时
当主句谓语含有情态动词时，if从句常用一般现在时
当表示客观事实、真理时，主句和if从句都用一般现在时
主现从必现，客观真理永不变
在复合句中作条件状语的句子叫条件状语从句。条件状语从句常用if“如果”来引导。
if从句既可放在主句前，也可放在主句后。放在主句前时，常用逗号与后面的主句隔开。e.g. 如果明天下雪，我们将堆雪人。 If it snws tmrrw, we will make a snwman. = We will make a snwman if it snws tmrrw.
考向1 主句和if引导的条件状语从句的位置
考向2 含if引导的条件状语从句的复合句中主从句的时态
①当表示未来可能发生的事情时，主句用一般将来时，if引导的 条件状语从句用一般现在时，即遵循“主将从现”的原则。 从句 主句 一般现在时 一般将来时 e.g. If it rains tmrrw, I will stay at hme. 如果明天下雨，我会待在家里。 主句 从句 一般将来时 一般现在时 Yu will pass the exam if yu study hard. 如果你努力学习，你就会通过考试。
②当表示在某种条件下给出的建议或命令，且主句为祈使句时， if引导的条件状语从句常用一般现在时。(“主祈从现”) 从句 主句 一般现在时 祈使句 e.g. If yu feel tired, take a rest. 如果你感到累，就休息一下。练习：If Linda ________ back, ________ her the gd news. A. cme; telling B. cmes; tell C. cme; tells D. cmes; t tell
③当表示在某种条件下可能发生的结果，且主句谓语含有 情态动词（如can、may、shuld等）时，if引导的条件状语 从句常用一般现在时。(“主情从现”) 主句 从句 (含情态动词) 一般现在时 e.g. Yu may fall ill if yu eat the bad fd. 如果你吃变质的食物，你可能会生病。
④当表示客观事实、真理时，主句和if引导的条件状语从句都用 一般现在时。 从句 主句 一般现在时 一般现在时 e.g. If the temperature is belw zer, water turns int ice. 如果温度低于零度，水就会变成冰。 主句 从句 一般现在时 一般现在时 The stne falls back t the grund if yu thrw it int the air. 如果你把石头抛向空中，它就会落回地面。
1. If yu cme t my city, I’ll shw yu arund. (______________)2. We’ll finish at 7:00 p.m. if it’s n time. (______________)3. If yu want t make sme new friends, this is a gd chance. (______________)4. If it is still hard t talk, take a break. (______________)5. If yu can’t meet, just call yur friend. (______________)6. If yu want t pass the exam, yu must study hard. (______________)
拓展：含有if引导的条件状语从句的主从复合句有时可以转换成 “祈使句 + and / r + 陈述句”结构，and表示“那么，就”， r表示“否则，不然”。 e.g. If yu are mre utging, yu'll have mre friends. → Be mre utging, ________ yu'll have mre friends. 更外向一些，你就会有更多的朋友。 If yu dn't hurry up, yu will miss the bus. → Hurry up, ________ yu will miss the bus. 快点，否则你会错过公交车。
1. If we have a face-t-face meeting,2. If I have gd news,3. If yu need t leave,4. If yu can finish yur wrk early tday,5. If the ld man has difficulties in hearing,6. If yu can’t reach her by phne,
A. try texting.B. we’ll understand each ther better.C. yu can write things dwn fr him.D. I’ll call yu right away.E. I’ll call a taxi fr yu.F. will yu jin me fr dinner?
... If things _________ (g) well, we _________ (see) all thse ld faces again. Just think hw great it will be! If yu think yu can cme, _________ (drp) me a line and I ___________ (give) yu all the details abut the reunin. But prmise me yu’llthink abut it seriusly.
Hey, it’s me. I wanted t talk t yu abut the training plan fr ur team. The new seasn is cming, s it’s time t make a plan fr ur training. If we _________ (start) earlier this year, I think we _____________ (perfrm) better. _________ (give) me a call and _________ (let) me knw if yu _________ (think) f a gd time fr everyne t meet. Talk t yu sn!
will perfrm
1. My mm will _______ me _______ at the schl gate after class.A. pick; up B. shw; arund C. send; messages D. talk; face t face2. We _______ the meeting n time if there’s n traffic jam.A. finish B. finished C. will finish D. have finished3. Let’s _______ ur new classrm t ur freign teacher.A. pick up B. shw arund C. send emails D. make a call4. Peple ften _______ by making vide calls when they are far away.A. cmmunicate B. visit C. finish D. wait5. If yu _______ t Beijing, I will take yu t the Great Wall.A. g B. will g C. went D. ging
1. If he _______ (cme) early tmrrw, we will visit the museum tgether.2. Culd yu please _______ (pick) me up at 6:30 p.m.? My bike is brken.3. They ften _______ (cmmunicate) with their pen pals by sending emails.4. If it _______ (nt rain) this weekend, my family will g camping.5. Let’s _______ (shw) ur new classmate arund the schl after the first lessn.
desn’t rain
语法填空(用括号内词的正确形式填空）
1. If yu ____________ (finish) yur hmewrk, yu can g ______________ (learn) a lt if yu travel arund the wrld.3. —Tm wants t knw if yu will have a picnic tmrrw. —Yes. But if it ____________ (rain), we'll play chess at hme instead.4. If he ____________ (call), tell him I ____________ (call) him back.5. We ____________ (g) t the beach if it ______________ (nt rain) this afternn.6. ____________ (call) me if yu ____________ (have) any prblems.7. They ______________ (nt cme) t my party if their parents ____________ (nt let) them g ut.
I. 用括号内所给单词的适当形式填空。
will/can learn
desn't rain
We learn:1. Vcabulary: meeting, difficulty, right away, line, drp sb. a line, detail, reunin, seriusly, training.2. Grammar: Zer & First Cnditinals (structure: If + present simple, present simple/future simple).3. Functinal Language: Talk abut cmmunicatin/plans with cnditinals.We can:1. Use Zer & First Cnditinals accurately in exercises and dialgues;2. Use new vcabulary t describe daily situatins.