資源簡介

(共29張PPT)
Section A
(Grammar Focus-3c)
If you go to the party，you'll have a great time！
Unit 10
什么是復合句？什么是主句，什么是從句，什么是條件狀語從句？條件狀語從句在時態方面有什么特點？如果同學們有疑問的話，這節課我們就一起來解開這些疑團。
Grammar Focus
I think I'll take the bus to the party. If you do, you'll be late.
I think I'll stay at home. If you do, you'll be sorry.
What will happen if they have the party today？ If they have it today, half the class won't come.
Should we ask people to bring food？ If we ask people to bring food, they'll just bring potato chips and chocolate.
(一)if 引導的條件狀語從句
語法講解
考點 1
當主句用一般將來時時，if引導的條件狀語從句用一般現在時，我們稱之為“主將從現”原則。
eg：If it rains tomorrow，I'll stay at home.
如果明天下雨，我將呆在家里。
考向一
if 引導的條件狀語從句的時態與主句的一致性。
【重點】
You will see many aunts dancing together on the square if it________ in the evening.
(連云港)
A．doesn't rain　　　　B．rains
C．will rain D．won't rain
【解析】本題用語法判定法。句意：如果晚上不下雨，你會看到許多阿姨在廣場上一起跳舞。當主句是一般將來時時，if引導的條件狀語從句用一般現在時(即主將從現)。
典例
A
unless引導條件狀語從句時，主句為將來時，從句用一般現在時表示將來(即主將從現)。unless本身就表示否定，在意義上相當于“if ...not”，其引導條件狀語從句時與“if ...not”，兩者可以互換。
eg：I will go there unless it rains.
＝I will go there if it doesn't rain.
如果不下雨，我就去那里。
【重點】
拓展
You won't pass the exams ________ you work hard. (遂寧)
A．if　　　　B．unless　　　　C．so
【解析】本題用語境判斷法。句意：如果你不努力學習，你考試就會不及格。unless除非；如果不，在意義上相當于if ...not。
典例
B
如果主句含有must，may，can 等情態動詞，
if引導的條件狀語從句也用一般現在時。
eg：If you drive too fast，you may have an accident.
如果你開得太快，你可能會出交通事故。
考向二
考向三
如果主句是祈使句，if引導的條件狀語從句同樣用一般現在時。
eg：Tell Tom to ask Jack for help if he still has problems with his schoolwork.
如果湯姆學業方面還有問題，告訴他去找杰克幫忙。
if引導的賓語從句與if引導的條件狀語從句的時態區分。
if引導賓語從句時，當“是否”講，時態根據其主句而定：★當主句是現在的某種時態時，if從句的時態根據實際情況而定。★當主句是過去的某種時態時，if從句要用過去的某種時態。
eg：Lucy asks Tom if he'll travel around the world one day.
露西問湯姆他是否有一天會去環游世界。
I didn’t know if he was right or not before you
told me that.
在你告訴我那件事之前，我不知道他是否是正確的。
考點 2
【難點】
—Can you guess if they ________ to play basketball with us
—I think they will come if they ________ free.
A．come；are　 　B．will come；will be
C．will come；are D．come；will be
【解析】本題用語法判定法。第一個if 引導賓語從句，意思是“是否”，由句意可知應用一般將來時。第二個if引導條件狀語從句，且主句是一般將來時，從句應用一般現在時表將來。　
典例
C
(二)情態動詞should 表建議
作為情態動詞，should 符合情態動詞的一般用法：后加動詞原形(do)；變否定句時在should 后加not，即shouldn't；變疑問句時，把should 提到主語前。
eg：What should I do if I want to be famous
如果我想出名，我應該做什么？
考向
除用情態動詞should 表建議外，還有一些常用的表建議的句型，歸納如下：
1．Let's (not) do...
2．Why don't you do...？＝Why not do...
3．What/How about doing...
4．...had better (not) do...
5．It's best (not) to do...
6．It's better (not) to do...
7．Don't you want to...
拓展
Fill in the blanks with the correct forms of the verbs in brackets.
Dear Su Mei,
I don't________(know) what to________(do) about going to Mike's birthday party tomorrow night. My parents________(think) I should study for my English exam next week. If I________(go) to the party, they________(be) upset. Mike________(tell)
3a
know
do
think
go
will be
told
us to wear nice clothes, but I don't ________(have) any. If I________(wear) jeans, I____________ (look) the worst. Also, I'm not sure how to________(go) to the party. If I ______(walk), it _________ (take) me too long. If I__________(take) a taxi, it____________(be) too expensive. Can you give me some advice please
Tina
have
wear
will look
go
walk
will take
take
will be
advice / d'va s/ n.勸告；建議
考向一【重點】
advice 作“建議”講時，是不可數名詞，而suggestion是可數名詞。如果想表示“一條建議”則用a piece of advice。
知識點
eg：Your English is pretty good. Can you give some advice to me
你英語很好。你能給我些建議嗎？
—Miss Li，could you give me ______ on
English learning
—Certainly. First you should speak English
every day. (廣安)
A．any advices　　　B．many advices
C．some advice
【解析】advice 作“建議”講時，是不可數名詞，因此無復數形式。　
C
典例 1
Could you please give some ________ to the ________ teachers？(安順)
A．advice；man 　B．advices；men
C．suggestion；man D．suggestions；men
【解析】advice是不可數名詞，沒有復數形式，排除B；some一些，它后面的可數名詞suggestion不能用單數形式，排除C；man后面的teachers為復數，man也要變為其復數形式men，排除A。
D
典例 2
考向二
advice的常用短語
give sb. some advice 給某人一些建議
give advice on sth. 在某方面給出建議
take/follow sb.'s advice 聽從某人的建議
ask sb. for advice 向某人征求意見
eg: My parents always give me some good advice when I am in trouble.
當我遇到困難時，父母總會給我一些好的建議。
I think you'd better follow your friend's advice.
我認為你最好聽從你朋友的建議。
Complete the sentences using your own ideas.
3b
1. If I get up late tomorrow,
.
2. If I don't finish my homework,
.
3. If I don't get enough exercise,
.
4. I will not have enough time to study if
.
5. I will not make any friends if
.
I’ll be late for class
the teacher will be angry with me.
I’ll not be very healthy.
I watch TV after school.
I am too shy.
Write a story with your group on a piece of paper. The first person begins the story with “I think I will...” The others add sentences with “if”. Pass the paper around twice. Then read the story.
3c
I think I will go to the movies tonight. If I go to the movies, I won't finish my homework. If I don't finish my homework ...
本節課主要學習了單詞advice的用法以及本單元的重點語法知識。
一、用所給詞的適當形式填空
1．If I see him again，I ________ (tell) him what you say.
2．What ___________(happen) if they don't agree with each other
3．If given more time，I _______ (do) it better.
4．What will he say if he ______ (find) out the truth
5．If the train ___ (be) on time，it will be here in ten minutes.
will tell
will happen
will do
finds
is
二、單項選擇
6．(重慶A)Stop smoking, Joe! You ________ yourself
if you keep on doing it like that!
A . will kill B．have killed
C．kill D．killed
A
【解析】考查時態。句意：Joe，戒煙吧！如果你繼續那樣做，你會害了自己的！由if引導的條件狀語從句用一般現在時表將來，推斷出主句中應當用一般將來時。所以選A。
7．(中考·威海)Why not look up the new word in a
dictionary________ you don't know it
A．if B．that C．though D．Whether
A
【解析】句意：如果你不認識那個新單詞，為什么不查詞典呢？if如果，引導條件狀語從句；that引導賓語從句，沒實際意義；though雖然，引導讓步狀語從句；whether是否，引導賓語從句。根據句意及選項分析，可知選A。
8．(中考·呼倫貝爾)The earth will be more and more beautiful if everyone________ his best to love it.
A．try B．tries C．will try D．has tried
B
【解析】句意：如果每個人都盡他最大的努力熱愛這個地球，那么它就會越來越美麗。try one's best to do sth.，盡某人最大努力做某事。這句話中if引導的是條件狀語從句，從句中應該用一般現在時態，主語everyone是不定代詞，謂語動詞用單數，故選B。
9．(江西)There will be less pollution ______ more people use public transportation.
A．but B．though
C．unless D．If
D
【解析】考查連詞的用法。句意：如果更多人使用公共交通，那么將會有更少的污染。but但是；though盡管；unless如果不；if如果。根據句意可知這兩句表示假設關系，故選D。
10．(武威)Learning to write is learning to think. You will know things more clearly _____ you write down.
A．or B．unless
C．if D．whether
【解析】考查連詞。句意：學習寫作就是學習思考。如果你寫下來，你將會了解得更清楚。or或者、否則；unless除非；if如果；whether是否。根據句意，故選C。
C
1.熟記本課時的詞匯
2.完成本課時的課后作業

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