Unit 2 Healthy Lifestyle Reading and Thinking 语言点课件-2023-2024学年高中英语人教版（2019）选择性必修第三册

1._____ teenagers grow up, they become 2.______ independent and start making their own decisions. However, during this period, it can be easy for some of them3._____form bad habits. These bad habits, if 4._____ unchecked, could lead to more serious 5._____ when they become adults. For example, some of them may become 6._______ in tobacco or alcohol abuse, 7._____ can lead to physical and mental health problems. To prevent harmful habits like these 8._______ dominating a teenager's life is essential. They must learn to recognise bad habits early and make 9.________(恰当的 )changes. left unchecked become / be / get involved in★ tobacco / alcohol abuse lead to physical and mental health problems / issues 置之不理/放任不管 卷人;参与;与……有关联 过度吸烟/饮酒 造成身心健康问题 如果任其发展，在他们长大成人后，这些不良习惯可能会导致更为严重的有害习惯。 Important sentences (P14) 此处是 if 条件状语从句省略结构，完整的形式为 ___________________ ______________. These bad habits, if left unchecked, could lead to more serious ones when they become adults. (Para. 1) if these bad habits are left unchecked Think and find 在if 引导的条件状语从句中，如果从句的主语和主句的主语一致，同时从句谓语动词含有 be 动词，则可省略从句的主语和 be 动词。 If (you are) traveling north, you must change at Moscow. 3 2) 在if 引导的条件状语从句中，当状语从句的主语是 it，且谓语动词是 be 时，it 和 be 可以省略。 If (it is) possible, he will help you out of the difficulty. You must attend the meeting if (it is) convenient to you. 3) if 省略结构的固定结构： It sounds like something is wrong with the car’s engine. If so, we’d better take it to the garage immediately. I want to avoid the rush hour traffic if possible. Correct the errors, if any. She seldom, if ever, goes to the cinema. I’d say he was more like his father, if anything. 4 Important sentences (P14) 即学即练 The medicine will work best if ______ (take) according to the instructions. You must find yourself upset by traffic jams if _____ (live) in the centre of the city, especially during the rush hour. If the steps you take are working, keep it up. ________ (不然), take another look at other methods you could try. taken