教材习题点拨
WARMING UP
Suggested answers include:
·If you eat too much energy-giving food you will become fat and suffer from high blood pressure.
·If you eat too much body-building food you will grow taller and stronger but not necessarily healthier.
·If you eat too much protective food for every meal you may lack energy.However,without protective food(over a long period of time)you can get serious illnesses like scurvy(lack of vitamin C)or rickets(lack of vitamin D).
·If you don't eat enough food of any of the three kinds you may get anorexia(too thin). PRE-READING
Suggested answers to Question 1:
A good meal should contain some food from each of the three categories above. COMPREHENDING Answer key for Exercise 1: 1.True.
2.False.It would take longer than that. 3.True.
4.False.No.It gave them protective food but no energy-giving or body-building food. 5.False.His menu gave customers energy-giving food. 6.False.He decided to advertise the benefits of his menu! Suggested answers to Exercise 2
1.Li Chang always came to his restaurant so if he did not,it meant that something serious had happened to stop him.
2.He did not want Yong Hui to tell lies and people to believe her.
3.If he gave his customers cheaper prices and advertised the benefits of his menu,perhaps his customers would return.
Answer key for Exercise 3
1.enough protective food 2.plenty of energy-giving food 3.enough energy-giving food 4.plenty of protective food Answer key for Exercise 4
1.Wang Peng is worried because his restaurant is not as full as it usually was. 2.He follows his friend to a newly opened restaurant which is very popular. 3.Worried,he does some research to win his customers back.
Suggested summary of the story:
Wang Peng is worried because his customers are not coming to his restaurant as they usually did.He follows his friend to a newly opened restaurant which offers to make people thin in two weeks.Worried,he does some research and tries to win his customers back.
Suggested answers to Exercise 5:
Ideas will vary but possible answers to Question 1 are:
·Wang Peng will offer more protective food with his meals such as salad. ·He will cook his food in less oil.
·He will stop serving ice cream and cola because both of those have too much fat or sugar. Possible answers to Question 2 are: ·Wang Peng will lose his restaurant.
·Yong Hui will come to his restaurant and become very angry with him.
·Yong Hui's customers will become so tired they will return to Wang Peng's restaurant. Suggested answers to Exercise 6
Kind of cooking 1 barbecue 2 roast 3 stir-fry 4 fry What skill it describes Cook food on a metal frame over a fire,usually outdoors Cook something in an oven or over a fire Cook quickly by moving the food around continuously in very hot oil Cook something in hot fat or oil 5 boil Cook something in boiling water LEARNING ABOUT LANGUAGE Discovering useful words and expressions Answer key for Exercise 1
1 lie 2 get away with 3 raw 4 curiosity 5 customer 6 benefit Answer key for Exercise 2
2 ought to 4 diet 5 raw 8 balanced 9 energetic 10 slim
1.become thinner—lose weight
3.being laughed at by her friends—losing face 6.felt so sad and hopeless about herself—lost heart 7.was unwilling to visit may more—lost interest in visiting Answer key for Exercise 3
1 √ pear;× cream(fat and all the others are fruit)
2 √ sugar;×mutton(meat and all the others are energy-giving food) 3 √ bacon;× cabbage(vegetable and all the others are meat) 4.√ strawberry;× eggplant(vegetable and all the others are fruit) Discovering useful structures Answer key for Exercise 1
Then by lunchtime they would all be sold.(Possibility) By now his restaurant ought to be full of people.(Possibility) What could have happened?(Possibility) Nothing could be better...(Possibility)
Something terrible must have happened if...(Guessing) I'll help you lose weight...(Intention) He could not believe his eyes.(Ability)
Perhaps he should go to the library and find out.(Duty)
He could not have Yong Hui getting away with telling people lies!(Intention)
He had better do some research!(Duty)
Even though her customers might get thin after eating Yong Hui's food...(Possibility) They would become tired very quickly.(Intention) ...he could win his customers back.(Ability) Answer key for Exercise 2
1 have to;should;shouldn't;needn't;don't have to/needn't/shouldn't;will 2 have to;mustn't 3 ought to;should
Suggested answers to Exercise 3
1.I have to take the book to the librarian's desk.Then I need to give her my card so she can register the book on her computer.I have to return the book before the date stamped on the cover.
2.I must go to the dental hospital and see the dentist.Of course I have to make an appointment first.Then I should clean my teeth before I go into the dentist's surgery.It will be more thoughtful for him/her if I can do this.
3.First,I ought to arrive in good time at the airport.Second,I must write the name of the person I don't know on a name board and display it so everyone can see it.Finally,I have to wait until the plane has arrived and all the people from that flight have appeared.If I still have not seen him/her I should go to the information centre and ask them to make an announcement.
4.To get a discount in a shop I need to find out the original price.Then it is important to laugh and wonder aloud if this price is a joke or not.Finally I should offer a lower price and argue with the salesperson until they offer me a more reasonable price.If the price is still too high I don't have to accept it.I can always walk away.Sometimes if the salesperson is keen to make a sale he/she will offer me a more reasonable price.
5.When you meet the hostess in your friend's home you ought to greet her politely.You should spend a few minutes talking to her.For example you can thank her for inviting you but you don't need to compliment her on her dress or her house.However,you ought not to speak to her too long as she will be busy and have many people to greet.At the end of the party you must thank her for a lovely evening.
USING LANGUAGE Listening
Suggested answers:
Question Which illness do we still have today? Obesity 1 more varied diet:vitamin C for scurvy;Why is it we don't get scurvy and rickets vitamin D for rickets today? 2 more understanding of what we need to stay healthy Scurvy:sailors who did not eat fresh fruit and vegetables Who got these illnesses and why? Rickets:children who did not get enough sunshine or oily fish to eat LISTENING TEXT
HOW AN UNBALANCED DIET CAN AFFECT YOUR HEALTH
Wang Peng went to the library,where he happened to meet an expert on diets.He asked him for help.
WP=Wang Peng E=Expert
WP:Hello.Can you help me,please?I want to find out more about balanced diets. E:Of course.A balanced diet needs energy food like rice and noodles,body-building food like fish and meat for protein and fat,and protective food like fruit and vegetables for fibre and vitamins.
WP:Yes,but does it matter how much rice,noodles and sugar I eat?
E:Yes.If you eat too much,you may become obese.This means you are too fat and it may lead to other illnesses.However,if you don't eat enough rice,noodles or sugar,you'll get tired easily.
WP:I see.I'll be careful about that.Does it matter how much fish,meat or cheese I eat? E:Too much can also make you fat,but if you don't eat enough,your bones won't grow strong.A long time ago,children who didn't eat enough vitamin D and body-building food didn't grow straight legs.They got an illness called rickets.
WP:Oh dear!Do people still have the problem?
Answer