人教版高一英语必修三专题之 习题点拨 学案：Unit2 Healthy eating.doc

教材习题点拨warming upsuggested answers include：if you eat too much energygiving food you will become fat and suffer from high blood pressure.if you eat too much bodybuilding 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 dont eat enough food of any of the three kinds you may get anorexia(too thin)prereading suggested answers to question 1：a good meal should contain some food from each of the three categories above.comprehending answer key for exercise 1：1true.2false.it would take longer than that.3true.4false.no.it gave them protective food but no energygiving or bodybuilding food.5false.his menu gave customers energygiving food.6false.he decided to advertise the benefits of his menu!suggested answers to exercise 21li chang always came to his restaurant so if he did not，it meant that something serious had happened to stop him.2he did not want yong hui to tell lies and people to believe her.3if he gave his customers cheaper prices and advertised the benefits of his menu，perhaps his customers would return.answer key for exercise 31enough protective food2plenty of energygiving food3enough energygiving food4plenty of protective foodanswer key for exercise 41wang peng is worried because his restaurant is not as full as it usually was.2he follows his friend to a newly opened restaurant which is very popular.3worried，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 huis customers will become so tired they will return to wang pengs restaurant.suggested answers to exercise 6kind of cookingwhat skill it describes1 barbecuecook food on a metal frame over a fire，usually outdoors2 roastcook something in an oven or over a fire3 stirfrycook quickly by moving the food around continuously in very hot oil4 frycook something in hot fat or oil5 boilcook something in boiling waterlearning about language discovering useful words and expressionsanswer key for exercise 11 lie2 get away with3 raw4 curiosity5 customer6 benefitanswer key for exercise 22 ought to4 diet5 raw8 balanced9 energetic10 slim1become thinnerlose weight3being laughed at by her friendslosing face6felt so sad and hopeless about herselflost heart7was unwilling to visit may morelost interest in visitinganswer key for exercise 31 pear； cream(fat and all the others are fruit)2 sugar；mutton(meat and all the others are energygiving food)3 bacon； cabbage(vegetable and all the others are meat)4 strawberry； eggplant(vegetable and all the others are fruit)discovering useful structuresanswer key for exercise 1then 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)ill 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 huis food.(possibility)they would become tired very quickly.(intention).he could win his customers back.(ability)answer key for exercise 21 have to；should；shouldnt；neednt；dont have to/neednt/shouldnt；will2 have to；mustnt3 ought to；shouldsuggested answers to exercise 31i have to take the book to the librarians 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.2i 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 dentists surgery.it will be more thoughtful for him/her if i can do this.3first，i ought to arrive in good time at the airport.second，i must write the name of the person i dont 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.4to 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 dont 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.5when you meet the hostess in your friends 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 dont 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 listeningsuggested answers：questionanswerwhich illness do we still have today？obesitywhy is it we dont get scurvy and rickets today？1 more varied diet：vitamin c for scurvy；vitamin d for rickets2 more understanding of what we need to stay healthywho got these illnesses and why？scurvy：sailors who did not eat fresh fruit and vegetablesrickets：children who did not get enough sunshine or oily fish to eatlistening texthow an unbalanced diet can affect your healthwang peng went to the library，where he happened to meet an expert on diets.he asked him for help.wpwang pengeexpertwp：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，bodybuilding 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 dont eat enough rice，noodles or sugar，youll get tired easily.wp：i see.ill 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 dont eat enough，your bones wont grow strong.a long time ago，children who didnt eat enough vitamin d and bodybuilding food didnt grow straight legs.they got an illness called rickets.wp：oh dear！do people still have the problem?e：sometimes.wp：then what about fruit and vegetables？how much should i eat?e：you ought to eat about five big spoonfuls of different fruit and vegetables every day.wp：really？i didnt know that.e：yes.in the 18th century sailors at sea used to find that their teeth fell out and they had bad spots on their skin.they got it because they didnt eat enough fruit and vegetables.the illness is called scurvy.wp：goodness！what about now?e：its very rare now.people eat more fruit and vegetables.you need protective food like that for clear skin and bright eyes.wp：thank you very much.you have given me a lot to think about.answer key for exercise 2wang peng is doing research to find out how an unbalanced diet can affect your health，so you need to eat a balanced diet if you are to stay healthy.answer key for exercise 3answer key for exercise 4owner of restaurantproblems with food offeredwhat food is neededwang pengtoo much fat and energygiving foodmore fruit and vegetablesyong huitoo much fruit and too many vegetablesmore meat，fish，cheese and eggs as well as rice and noodlesreading and discussinganswer key for exercise 1：1she felt angry because she thought wang peng had came into her restaurant to spy on her.2(a)wang peng showed that he wanted to cooperate and not compete with yong hui.(b)they succeeded in finding a menu that provided a balanced diet.3(a)they cooperated successfully in business.(b)they liked each other.answer key for exercise 2：shouted，explained，added，admittedspeaking and writing sample writing：hong yans family restaurant of local dishesour restaurant is special for several reasons：name of restaurant and its type of dishesit is family owned and runwe serve a balanced dietwe specialize in dumplings and beef noodle soupwe cook our dishes from start to finish every dayonly the very best ingredients are includedwatch for our fresh pot of cows bones every day to show we have made fresh beef stock for the soupour recipes are a family secret and cannot be found elsewhere in other restaurantsfor our first week we are offering a discount of 20%once you have tried our food，you will never want to go anywhere else！the advantages of our restaurantthe food and menuquality of cooking and preparationsecret recipea special featurecheaper prices to encourage customersoverall assessment练习册教学指导listening texteating wiselyemma is visiting doctor pans surgery.eemmaddoctor panpart 1d：hello.whats the matter?e：i dont feel well.i keep feeling dizzy and i get tired very easily.d：oh，dear！you look a bit thin to me.are you eating well?e：oh yes.i have an orange and a banana for breakfast and a roll for lunch.i eat half a bowl of rice and a dish of vegetable in the evening.d：well，in fact you are too thin！it seems that you are not eating enough.you need more energygiving food.e：but doctor，if i eat too much i feel sick.d：now，young lady，you must listen to me.your diet is not giving you enough energy，and if you carry on this way youll become seriously ill.e：oh，my goodness!part 2d：let me tell you how to eat well but still stay thin.there are three types of food.they work like traffic lights.the first type of food is “red” and you mustnt eat too much of it，because this food contains a lot of fat，sugar and salt.e：really？can you give me some examples?d：butter，cheese，cream，cakes，food fried in fat.e：ok.d：the second kind of food is “orange” and you should eat some every day.it includes bread，noodles，spaghetti，rice，meat，fish，eggs and tofu.e：well，i eat some of those things.d：the last type of food is “green” and you should eat some at every meal.it includes all fruit and vegetables.e：thank you，doctor pan.does anybody else，put food into colour groups as you do?d：yes.many scientists do，and all food in the supermarkets in england now is coloured in this way.e：thats very interesting.ill follow your advice.answer key for exercise 1：emma is suffering from anorexia.answer key for exercise 2：1 she has an orange and a banana for breakfast，a roll for lunch，and half a bowl of rice and a dish for supper.2 she is not eating enough food and particularly energygiving food.3 he thinks she is too thin.4 she is happy to get the advice on how to eat a more balanced diet.answer key for exercise 3：red food(only a little every day)orange food(some every day)green food(some every meal)buttercheesecreamnutscakesfoodfried in fatbreadnoodlesspaghettirice meatfisheggstofuall vegetables(for example：potatoes，cabbage，carrots，tomatoes)all fruits(for example：watermelons，apples，oranges，pineapples)using words and expressionsanswer key for exercise 1：1 curiosity；curious2 sugary；sugar3 balanced；balance4 limit；limited5 marry；married6 weak；weakness7 digestion；digestanswer key for exercise 2：1 combined2 diet，put on weight，digest3 sighed4 before long5 cutting down，benefitsuggested answers to exercise 3：flavours and tastes：sweet，salty，crispy，tastless，sugary，spicy，sourways of cooking：fry，roast，boil，barbecuevegetables：eggplant，carrot，pea，cabbage，radish，turnip，cucumber，mushroomfruits：grape，peach，plum，mango，melon，lemon，pineapplemeat：mutton，beef，kebab，baconseafood：shrimp，crab，lobsterdairy food：cheese，cream，milkseasoning：mustard，pepper，garlic，sugar，vinegarstaple food：noodle，spaghetti，bread，rice，corndrink：coffee，mineral water，tea，juice，wine，colaanswer key for exercise 4：1 tell2 ask3 say4 speak5 tell6 talk7 discuss8 tell9 sayanswer key for exercise 5：1 the weakness of this diet is that it has too much fat and sugar；its strength is that it has plenty of energygiving food.2 the shopkeeper is trying to win his customers back with a discount.3 if you dont say sorry for your mistake，they wont let you get away with it.4 he has been in debt for a long time.how to earn his living is a big problem.5 when i was waiting for my friend，i suddenly spied a man not far away glaring at me.6 i dont want to lie to you，but i have to say that his intelligence is limited.7 experts say eating carrots benefits your eyes.8 i usually eat dumplings with a little vinegar，which i believe helps me digest the food.using structuressuggested answers to exercise 1：1 have to，should，should2 ought to，should3 mustnt，would4 have to5 cant，cantlistening tasklistening textthe problem of the mcdonaldsrestauranttina is talking to li qian about whether a new mcdonalds restaurant should be built.ttinalqli qiant：well，what do you think？mcdonalds is going to build a new restaurant in our hometown.lq：surely not！i hate all that expensive，tasteless food.where are they going to build it?t：over there where that old restaurant is.lq：but where are we going to eat our local dishes？i love to eat them there.its so friendly.why are they closing?t：mcdonalds offered that old restaurant a lot of money，so they wanted to sell.i think we will all benefit.an old part of town will be improved and we shall have more jobs.lq：dont you believe it！ive read about these kinds of restaurants.they provide a terrible diet for young children.how does mcdonalds know that we want their restaurant here？nobody has asked our opinion.t：well，since you are against it，why not take part in a meeting to vote on whether we want mcdonalds or not？you may give the reasons why you dont want it to be built.ill give the reasons for building it.lq：that seems a very good idea.lets do that.answer key for exercise 2：namefor or againstreasonstinafor1 an old part of town will be improved.2 they will have more jobs.li qianagainst1 she hates all that expensive tasteless food.2 she loves local dishes.3 mcdonalds serves a terrible diet for young children.sampl