PREE

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Unit 2 Healthy eating
Lesson 3 Grammar
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Revision

• can/could ability, permission, possibility,
  request
• may/might permission, request, possibility
• will/would promise, prediction, past habit,
  request
• shall/should promise, advice, prediction
• must/cant advice, necessity, guessing

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Revision

• can/could or be able to
• I could swim before I was there.
• A man was able to swim out to the girl and save
  her.
• may be or maybe
• I may be late this evening.
• Maybe we should do it tomorrow.

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Revision

• can/could or may
• Can is used in standard spoken English when
  asking for permission.
• Could is slightly more formal.
• Both of these are acceptable in most forms of
  written English, although in very formal writing,
  such as official instructions, may is usually
  instead.
• Eg. Persons under 14 unaccompanied by an adult
  may not enter.

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Revision

• shall or will
• shall or will?????????,?shall???I?we??will??,?
  ??????shall?????????,???????,?????
• You shall be punished if this ever happens again.

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Revision

• must or had to
• Im going to Hong Kong this evening and I must
  remember to take my passport with me.
• Vincent could not come because he had to go to
  Beijing.

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Task of Period 3

• Present the dishes you suggest to Frank and
  explain why you choose them as a balanced diet,
  using model verbs.

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Grammar Learning
Underline the sentences containing modal verbs in
the reading passage and use the function words
below to explain the meaning of the modal
verbs. Example Then usually by lunchtime they
would all be sold. He could not believe his
eyes. Perhaps he should go to the library and
find out.
Intention Duty Permission Possibility
Guessing Ability
possibility
ability
duty
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Grammar Learning

• Choose suitable modal verbs to complete the
  dialogues in Ex.2, P13.

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Grammar Learning

• Should
• You should do it for yourself.
• You shouldn't come to such a decision hastily.
• The doctor is a well-known expert, so what he
  said should be reliable. You should lose weight.

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Grammar Learning

• Ought to
• You ought to have it finished very soon.
• Oughtn't he to see a doctor?
• ??
• You oughtn't to smoke so much.
• You should smoke so much.

Ought to?????????,???should????????????,should????
??,??????????????????,?????????????????ought
to???????,???????????????????Ought
to?????????,should?????????
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Grammar Learning

• Need
• You needn't worry too much a little fried
  chicken will do you good!
• A balanced diet needs energy food, body-building
  food and protective food.
• We need to take exercise for our healthy body.
• Don't need to eat too much meat.

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Grammar Practising

• Ex.1, P50

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Grammar Consolidating

• Talk about your diet and your eating habit, using
  appropriate model verbs.
• Ex.3, P13

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Task of Period 3

• Present the dishes you suggest to Frank and
  explain why you choose them as a balanced diet,
  using model verbs.
• You can do as the following
• List the dishes you suggest to Frank
• Analyze what kinds of food they are
• Tell if they are balanced
• State your reasons.

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Task of Period 3

• Examples
• I strongly recommend that you should provide
  eggplants, because they are protective food and
  can help the body fight diseases.
• You mustnt provide too much fat and butter to
  customers they might put on weight easily and
  suffer from heart disease.

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Homework

• Ex.2, P50

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Resources
For more information, please visit this website
http//www.pree.net.cn
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Thank you!