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(共24张PPT)
Unit 4 A good read
(Grammer)
★学习目标：
掌握特殊疑问词 + 不定式、must/have to的结构与用法，归纳have to的时态变化规则。
在读书月、书评写作、图书馆规则等语境中理解并内化语法用法。
能在介绍书籍与图书保养中正确运用语法，乐于阅读与分享各类书籍。
★教学难点：
观察并掌握have to的肯定式和否定式在不同时态中的形式变化和使用规则。
在真实情境中，使用恰当的结构介绍自己最近所读的书及书籍日常保养。
A Using question words + to-infinitives
使用疑问词加不定式
疑问词加不定式的四种结构：
(1) Adjective + question word + to-infinitive
结构说明：形容词后接 “疑问词 + 不定式”，补充说明主语的状态或感受。
例：I am not sure what to do next.
我不确定接下来该做什么。
(2) Verb + object + question word + to-infinitive
结构说明：动词后先接宾语，再接 “疑问词 + 不定式”，不定式补充说明宾语的
动作。
例：He showed us where to find the books.
他指给我们去哪里找书。
疑问词加不定式的四种结构：
(3) Verb + question word + to-infinitive
结构说明：动词后直接接 “疑问词 + 不定式”，不定式整体作动词的宾语。
例：I didn’t know what to say at that moment.
那一刻我不知道该说什么。
(4) Verb + question word + noun + to-infinitive
结构说明：动词后接 “疑问词 + 名词 + 不定式”，名词是不定式动作的对象。
例：She forgot which shelf to put the book on.
她忘了该把书放在哪个书架上。
All question words can be used with to-infinitives except why.
除了why之外，所有疑问词都可以与不定式连用。
例：
Suzy will explain why to recommend this book.（×）
Suzy will explain why she recommends this book. （√）
Read the different groups of sentences below and choose the correct structure for each group.
a. Adjective + question word + to-infinitive
b. Verb + object + question word + to-infinitive
c. Verb + question word + to-infinitive
d. Verb + question word + noun + to-infinitive
Millie has decided what to read.
Daniel did not say who/whom to talk to about this book.
Simon forgot when to return his library books.
Kitty cannot decide which to choose first.
Sandy is wondering where to find a book about travel.
Amy does not know how to write the book review.
They are discussing which book to read next.
You can decide how many books to take with you.
c
d
Read the different groups of sentences below and choose the correct structure for each group.
a. Adjective + question word + to-infinitive
b. Verb + object + question word + to-infinitive
c. Verb + question word + to-infinitive
d. Verb + question word + noun + to-infinitive
Gulliver was not sure who/whom to ask for help.
I am not certain what to include in my book review.
There are so many books on the reading list. Mr Wu advised us which
to choose first.
The students asked their teacher when to hand in their book reviews.
Millie showed us what to write in a book review.
Daniel taught himself how to make a mind map on his computer.
Don't forget to tell your classmates where to find these books.
a
b
We can use a question word with a to-infinitive after a(n) verb or an adjective.
We can use a verb and a(n) object before a question word with a to-infinitive.
We can use a(n) noun after what, which, whose, how many and how much.
我们可以在动词或形容词后使用疑问词加不定式。
我们可以在疑问词加不定式前使用动词和宾语。
我们可以、which、whose、how many和how much之后使用名词。
Mr Wu is talking to his students about the Reading plete what he says with the correct question words.
So, today you've all decided what to read for the Reading Month. It isn't always easy to know ____________ book to choose, but I'm happy with your choices. It's helpful to have a plan before you start reading. Then, you'll know ____________ pages to read each day. You can talk to your classmates if you're not sure ____________ to write about your book. If you have any problems, I'm ready to help. For example, you can ask me ____________ to write a book review. I'II put up a timetable on my office door so you know ____________ to speak to me.
which
how many
what
how
when
Amy and Simon are chatting together after plete their conversation. Use the correct question words and to-infinitives of the words and phrase in the box below.
Simon: Hi Amy. So, now we've decided ________________. When are you going to start
Amy: In fact, I've already finished the first paragraph.
Simon: I haven't started yet.
Amy: Don't worry. Mr Wu didn't say ________________ the book review.
Simon: OK. I guess we still have plenty of time then.
Amy: I want to make a mind map of the stories in my book review. Do you know
_______________ one on the computer
Simon: No, but I know _______________ for help. Daniel is good with computers. We
plan to meet at the library. Would you like to join us
Amy: Yes, I'd love to!
Simon: We're still not sure _______________, but I'll let you know soon.
ask create hand in meet read
what to read
when to hand in
how to create
who to ask
where to meet
Write five sentences about a book you have read recently, using question words + to-infinitives.
B Using must and have to
使用must和have to
Read the text below and pay attention to the use of must and have to.
I am writing a book review for the school newspaper, and I have to hand it in on Friday. I have to give a short summary of the book, but I mustn't give away the ending. I don't have to love the book. I just need to give my reasons for liking it or not. I must check my spelling and grammar before I hand it in.
We use must and have to to say that it is necessary to do something.
我们使用“must”和“have to”来表示做某事是必要的。
We use must when the speaker feels that something is necessary.
当说话者认为某事是必要的时，我们使用“must”。
例：I must check my spelling and grammar before I hand in my book review.
“I must run away from them,” Gulliver thought.
We use have to when the situation makes something necessary.
当某种情况使得某事成为必要时，我们使用“have to”。
例：I have to hand in the book review on Friday.
Gulliver had to pull his hand out of the ropes.
We use must not to say that something is not allowed.
我们用must not来表示某事是不允许的。
例：I mustn't give away the ending of the story.
“You must not shout at us! It's too loud,” one tiny man told Gulliver.
We use do not have to to say that it is not necessary to do something.
我们用do not have to来表示做某事是没有必要的。
例：I don't have to love the book.
Gulliver didn't have to run away because the tiny men were kind.
B1 Millie is watching a video about school library rules on the school website. Read the script and complete it with must (not) and (do not) have to.
Welcome to the Sunshine Middle School library! I'm Mrs Li and I'II tell you a few library rules. You ______________ follow these rules while you're here.
First of all, you ______________ remember that books in the library are for everyone, so please make sure you take care of them. You ______________ write in the books or take out any pages.The library is a place for all students to read and study. You _____________ be very quiet when you're in the library, so other students can focus. You ____________ bring any food or drinks into the library.
You ____________ stay in the library to enjoy the books here. If you want to take a book home, you can just take it to the librarian to check it out.
Thank you for watching. I hope you enjoy using the library.
have to
must
must not
must
must not
do not have to
Write a short text about the daily care for books, using must (not) and (do not) have to.
Exercise
用括号内单词的正确形式填空
1.—_________ you _________ (hand) in your homework yet
—Yes, I gave it to the monitor a moment ago.
2.You must ___________ (go) to the doctor because your temperature is higher than usual.
3.You mustn’t give away the _____________ (ending) of the story when writing a book review.
Have
handed
go
ending
单项选择
1. We should learn some basic life skills since we _______ depend on ourselves some day.
A.can B.can't C.must D.mustn't
2.—Miss Li, I don't want to say sorry to Daniel.
—I'm afraid you ________. After all, you broke his glasses.
A.may B.have to C.mustn't D.needn't
3.Her nervous smile _________ her true feelings when she said she wasn’t worried about
the exam.
A.gave up B.gave away C.gave in D.gave back
C
B
B
Homework
Must do:
Polish the two writing practices and share with your deskmate.
Choose to do:
Work out some class rules using must (not) and (do not) have to.
Homework

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