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2019-2020年高一英語下冊(cè) Unit13 Healthy eating(第二課時(shí))教案 大綱人教版第一冊(cè) Teaching Aims: 1.Learn and master the following words and phrases:soft,bar,fuel,diet,calory,pace,bean, fibre,mineral,disease,environmental,chemical,probably,balance,keep up with,too much,make choices,be harmful to,lose weight,be prepared for,go for 2.Improve the students reading ability. 3.Enable the students to understand the best way to make sure that we will feel and look fine is to develop healthy eating habits by learning the reading text. Teaching Important Points: 1.Improve the students reading ability. 2.Master the following phrases:keep up with,too much,make choices,be harmful to,lose weight,be prepared for Teaching Difficult Points: How to make the students understand the reading material better and answer some questions on the passage. Teaching Methods: 1.Discussion before reading to make students interested in what they will learn. 2.Discussion after reading to make students understand what theyve learned better. 3.Fast reading to get a general idea of the text. 4.Careful reading to get the detailed information in the text. Teaching Aids: 1.a recorder 2.a projector 3.the blackboard. Teaching Procedures: Step Ⅰ. Greetings Greet the whole class as usual. Step Ⅱ. Revision and Pre-reading T:Yesterday we learned something about food.And weve known what food we eat is healthy food and what food is junk food.Who can give us an example?You try,please.(Teacher es up to a student.) S:Fruit,green,vegetables,fish,rice and so on,they are all healthy food.But cakes,ice cream,sweets,chocolate are junk food,I think. (Teacher may ask more students and there will be many different answers.) T:Yeah.All of your answers may be reasonable.So wed better eat healthy food in our daily life,eat less or never to eat junk food.Now lets discuss some questions.Look at the screen. (Show the following on the screen.) 1.How many meals do you eat every day?Which meal do you think is the most important?Why? 2.How much water do you drink every day? 3.What kind of snacks do you eat? 4.Which of the following gives you the most energy:a banana,a soft drink,a bar of chocolate? T:These questions are very mon.Please discuss them in pairs.Then Ill collect your answers. (Teacher goes among the students to listen to their discussion.Then choose several students to express their opinions.) T:OK.Now I want some of you to talk about your own opinions…. Suggested answers: 1.Three meals.I think breakfast is the most important.Because the sleeping of the whole night has used up the energies in the body,besides people also need to work in the morning.Lunch is the most important.I think.Because in the morning people have to work and need energies.In the afternoon they need energies,too. 2.Three bowls/cups of water. Three litres of water. 3.clay oven rolls/fried bread stick/soybean milk/wonton and noodles/smelly tofu…. 4.a bar of chocolate Step Ⅲ. Reading T:Yeah,in order to live we need food and water in our daily life.And with the development of science,choosing what to eat and drink is no longer as easy as it once was.Because stores offer all kinds of foods and snacks and we have to make many choices.Is that right? Ss:Yes. T:I know all of you study hard at school.But I want you to answer such a question:Do you study hard for a big test and then fail it,but you dont know why? Ss:Yes.Sometimes. T:OK.Maybe you think you are not as smart as everyone else.In fact,it may not be that youre less clever than everyone else is,but maybe its what youre eating.Scientist have found that you are what you eat and what you eat can change how you learn.Today we are going to learn a passage“We are what we eat.”First lets learn the new words. (Show the new words on the screen and then explain them.) T:Open your books.Look at the text,“Were what we eat.”You are given four minutes to read the passage quickly and silently.Try to remember the general idea.Then answer the question:Whats the best way to make sure that we will feel and look fine?Please begin. (Students begin to read the text and after four minutes,teacher checks the answer.) T:Time is up.Who wants to answer the question?Any volunteers? Ss:(A student stands up.)The best way is to develop healthy eating habits. T:Very good,what you said is right.Sit down,please.In fact,there are some new phrases in this reading material.They are very important and useful.Look at the screen. (Show the following on the screen.) 1.too much(+n.≠much too(+adj.) e.g. Too much snow can cause trouble. He was often ill because he ate and drank too much. Shes afraid the trip will be too much for me. This book is much too difficult for him. The old man walks much too slowly. 2.keep up with≠catch up with e.g. Tom was not good at maths and he couldnt keep up with the rest of the class. Jack was away from school for a month so now hes got to work hard to catch up with his classmates. 3.make a choice/make choices e.g.You can make a careful choice. Did she regret the choice she had made? 4.The polluted air is harmful to our health. 5.What I have said about him goes for you,too. 6.lose weight put on weight e.g.The advice he gave the fat lady is to lose some weight. During this month of hard work，many of us have lost weight. She told me that she was putting on weight. 7.be prepared for= be ready for e.g.Little Franz was not prepared for the masters question. It is going to rain.It doesnt matter;he was prepared for it. Is he ready for the exams? (Bb:too much≠much too,keep up with≠catch up with,make a choice/make choices,be harmful to,lose weight put on weight,go for be prepared for=be ready for) T:OK.Now please read the reading material again.This time you may read slowly.Pay attention to some detailed information,then answer the following questions on the screen. (Show the questionnaire on the screen.Teacher goes among the students and explains some problems which students may meet with.After four or five minutes,teacher deals with the questions with the whole class.) A Questionnaire 1.What does the word“green”mean in the text above?What about the word “fuel”?Can you find any other words used in the same way? 2.The text gives examples of how people make choices about what they eat.List the examples and the reasons why people eat or dont eat certain kinds of food. 3.How have our eating habits changed?Why?Try to think of as many examples and reasons as possible. 4.Why do people go to fast food restaurants? 5.Why is it not good for you to eat too much sugar or fat? 6.Why are crash diets and supplements so popular? 7.What can we do to keep a balanced diet? Suggested answers: 1.Here“green”means “unpolluted,unharmful and good for peoples health”.There are some other words used in the same way,such as nutrients,carbohydrates,energy. Here“fuel”means“all the things we eat for our bodies”.It can help keep our body functioning and fighting disease.There are some other words used in the same way,such as eco-foods,organic vegetables. 2.Many people today make choices about their eating habits based on what they believe.Some people are vegetarians,because they believe it is healthier not to eat meat or because they do not think we should kill animals for food.Some people are vegans,because they will not eat any animal products at all,not even milk or eggs.Others make choices based on how the products are grown or made.For example,they would like to eat eco-foods which are made by using green and clean ways or organic vegetables which are grown without chemicals. 3.Our eating habits have changed a lot in the past several decades.People have experienced the processes from having no enough food to having enough food,and later from having enough food to having better food.Now people buy and eat something,we not only think about if the food will give us the nutrients we need,but also if the food belongs to eco-foods. 4.Because it is very convenient for people to go to fast food restaurants.So it can save time for people to work. 5.Because if people eat too much sugar and fat,they put on weight very easily and some of them may have bad teeth. 6.Because people want to be smarter,healthier,in particular,young people want to be more beautiful.Crash diets and supplements go with the need of the times. 7.Maybe if we buy and eat good and nutrient foods from all the food groups in the right amounts,and eat less fat and sugar and take more exercise,we can keep a balanced diet. T:OK.Your answers are all reasonable.In fact,wed better pay attention to keeping a balanced diet in our daily life.In other words,we should develop healthy eating habits,so that we can keep up with the high pace of modern life. Step Ⅳ. Summary and Homework T:In this class,weve read a passage about “We are what we eat”.Weve learned a lot from it and we know developing healthy eating habits is very important.At the same time weve also learned some useful phrases.After class,read the passage again and again until you can recite some sentences.Whats more,dont forget to preview“word study and grammar”in the next period.Well,thats all for today.Class is over. Step Ⅴ. The Design of the Writing on the Blackboard Unit 13　Healthy eating The Second Period too much≠much too keep up with≠catch up with make a choice/make choices be harmful to,go for lose weightput on weight be prepared for=be ready for Step Ⅵ. Record after Teaching _____________________________________ _____________________________________ _____________________________________ _____________________________________