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2020八年级英语上册 Unit 2 Keeping Healthy句式精讲精练 (新版)仁爱版

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Unit 2 Keeping Healthy ‎ 句式精讲精练 ‎【句式精讲】‎ 1. I have a cold. ‎ have a cold是动词短语,意为“患感冒,伤风”,也可以说成catch a cold/get a cold或take a cold。其中have表示“患病,得病”,不能用于进行时态,但可与一段时间连用,表示状态;而catch/get a cold则表示瞬时动作,不能同一段时间连用。例如:‎ ‎ I have had a cold for three days. 我感冒三天了。‎ ‎ 此句也可以表达为:‎ ‎ I had/caught/got a cold three days ago. ‎ ‎【拓展】‎ ‎ 表示人体某部位“痛”时的几种结构:‎ ‎(1)have a + 身体部位名词后加-ache构成。例如:‎ ‎ have a headache 头痛 ‎ have a toothache 牙痛 ‎ have a stomachache胃痛 ‎(2)have a sore + 身体部位名词。例如:‎ ‎ have a sore throat 喉咙痛 9‎ ‎ have a sore arm 胳膊痛 ‎ have a sore foot 脚痛 ‎(3)身体部位 + hurt/ache。例如:‎ My eyes hurt. 我眼睛痛。‎ My legs ache. 我腿疼。‎ ‎(4)have a pain in/ on + the + 身体部位。例如:‎ I have a pain in the arm. 我胳膊痛。‎ ‎(5)There is something wrong with + one’s + 身体部位。例如:‎ ‎ There is something wrong with your eyes. 你的眼睛有毛病。‎ 1. Staying up late is bad for your health.‎ ‎(1)stay up late 表示“熬夜;睡得很晚”。例如:‎ I used to stay up late with my friends and watch movies. ‎ 我以前总是和朋友们一起熬夜看电影。‎ ‎(2) be bad for,意为“对……有害处”。介词for后接名词或代词。其反义词为be good for意为“对……有好处,对……有益处”例如:‎ Junk food is not good for our health. 垃圾食品对我们的健康没有好处。‎ Smoking is bad for you. 吸烟对你有害。‎ ‎3. As soon as Michael saw it, he got mad.‎ as soon as表示“一……就”, 这个短语比较常用,口语和书面语都可以。它的特点是,在句子中的位置比较灵活,而且可以用于各种时态。例如: (1)指未发生的动作,规律是:主句用一般将来时,从句用一般现在时代替一般将来时。例如:‎ I will tell him the news as soon as he comes back。‎ 他一回来我就会告诉他这个消息。 【注意】有时,为了特意表达刚刚完成某事就如何,需要用现在完成时。例如:‎ I will go with you as soon as I have washed my face.‎ 9‎ 我一洗完脸就会跟你去。 (2)指紧接着发生的两个短动作,主从句都用一般过去时。例如: ‎ He took out his English books as soon as he sat down 他一坐下就拿出了他的英语书。‎ ‎【拓展】‎ 有时跟某些单词,如与possible相连“as soon as possible”,其实是“as soon as it is possible”的省略形式,意为“尽快,尽早”。例如:‎ Please make your decision as soon as possible. ‎ 请尽快作决定。‎ ‎4. You’d better not read in the sun.‎ had better(常简略为’d better)是一固定词组,had better意为“最好”,用于表示对别人的劝告、建议或表示一种愿望。其用法有以下几点:‎ ‎(1) had better后面必须跟动词原形,构成had better do sth.句型。‎ ‎【注意】这里的had不能用have来替换。例如:‎ You’d better go to hospital at once.你最好立即去医院看病。‎ Tom, you’d better go there today.汤姆,你最好今天去那里。‎ ‎(2)主语不论是第几人称,句子不论是什么时态,都要用had better的形式。例如:‎ Now you(he; we) had better listen to the teacher.你(他,我们)现在最好听老师讲。‎ ‎(3)had better 的否定形式为had better not意为“最好不要”。例如:‎ You’d better not stay up late. 你最好不要睡的太晚。‎ ‎5. You should see a dentist.‎ should是情态动词,意为“应当,应该”。表示义务、责任,可用于各种人称,无人称和数的变化,也不能单独作谓语,只能和主要动词一起构成谓语,表示说话人的语气和情态;否定形式为should not,缩写为shouldn’t。其主要用法有:‎ ‎ (1) 表示责任和义务,意为“应该”。例如:‎ ‎ You should take your teacher’s advice. 你应该听从你老师的建议。‎ ‎ You shouldn’t be late for class. 你不应该上课迟到。‎ ‎ (2) 表示推断,意为“可能,该”。例如:‎ 9‎ ‎ The train should have already left. 火车可能已经离开了。‎ ‎6. I must ask him to give up smoking.‎ must为情态动词,意为“必须、一定要”,可用于肯定句、否定句或疑问句,其后需要接动词原形;但要注意,当must用于否定句时,mustn’t 的意思不是“不必”而是“一定不能”。例如:‎ You must finish your homework today. ‎ 你必须今天把作业做完。‎ You mustn’t play with matches.‎ 你绝对不能玩火柴。‎ Must we go right now?‎ 我们非要现在就走吗?‎ ‎【注意】在回答以must开头的一般疑问句时,肯定回答通常用“Yes,人称代词+must”;否定回答通常用“No, 人称代词+needn’t.”/don’t have to。例如:‎ ‎— Must he buy the book now? 他现在必须买书吗?‎ ‎— No, he needn’t. He can buy it tomorrow. 不,没必要。他可以明天买。‎ ‎— Must he hand in his homework this morning? 他必须今天上午交作业吗?‎ ‎— Yes, he must.是的,他必须今天早上交。‎ ‎7. I’m feeling terrible.‎ ‎ (1) feel是系动词,后面接形容词作表语,说明主语的状态、性质、特征。例如:‎ ‎ I feel tired. 我感觉累了。‎ I feel so happy today. Mum will buy me a new bike. ‎ 我今天很高兴,妈妈要为我买辆新自行车。‎ ‎ 【拓展】‎ ‎ 类似feel这种用法的词还有:look(看上去);smell(闻起来);sound(听起来);taste(品尝);get(变得);grow(变得)等。‎ The food tastes delicious. 食物尝起来很美味。‎ 9‎ The song sounds nice. 那首歌听起来很好听。‎ ‎8. You need to have healthy eating habits.‎ need意为“需要”,常用need to do sth.意为“需要做某事”,主语由“人”来充当。例如:‎ ‎ Does she need to know? 她需要知道吗?‎ ‎ He didn’t need to clean the house twice. 他无需打扫房间两次。‎ ‎【拓展】‎ ‎ (1) need作为情态动词的用法:‎ ‎ need作为情态动词使用时,后面接动词原形;常用来回答以must开头的一般疑问句的否定回答。例如:‎ ‎ She need wash her car now. 她现在要洗车。‎ Need she wash her car now?她现在要洗车吗?‎ She needn’t wash her car now.她现在不需要洗车。‎ ‎— Must he repair the clock now? 他现在必须修钟吗?‎ ‎— No, he needn’t. He can repair it this afternoon. 不,没必要。他可以今天下午修。‎ ‎(2) need作为行为动词的用法:‎ ‎ 1) 直接加宾语,即need sth.。例如:‎ ‎ I need a new coat.我需要一件新外套。‎ ‎ He didn’t need the money. 他不需要这笔钱。‎ ‎ 2)可后接宾语,再接不定式,即need sb. to do sth.。例如:‎ ‎ I need someone to look after her. 我需要有人来照顾她。‎ ‎【句式精练】‎ I.‎‎ 句型转换,按要求完成下列句子。‎ ‎1.We must clean the classroom every day.(同义句转换)‎ 9‎ We must _______ the classroom _______ every day.‎ ‎2.It took me two days to finish the book.(同义句转换)‎ I _______ two days _______ the book.‎ ‎3.You should eat an apple every day.(对划线部分提问)‎ ‎_______ _______ you do every day?‎ ‎4.—May I ask you some questions, Miss Wang?(对问句做出回答)‎ ‎—Sure, go_______.‎ ‎5.They have to get up early every day.(改为一般疑问句)‎ ‎_______they _______ _______ get up early every day?‎ ‎6.Must we drink eight cups of water every day?(作否定回答)‎ No,_______ _______ _______ _______.‎ ‎7.You’d better ask our computer teacher for help.(改为否定句)‎ You’d better _______ _______ our computer teacher for help.‎ ‎8.He talked with his father on the phone.(对画线部分提问)‎ ‎_______ did he _______ with his father?‎ ‎9.His father coughs badly, so he must stop smoking. (同义句转换)‎ His father has a bad cough, so he must_______ _______smoking.‎ ‎10.What’s wrong?(同义句转换)‎ What’s _______ _______?‎ II. 根据汉语提示,完成句子。‎ ‎1.这个小女孩日夜思念着妈妈。‎ The girl misses her mother _______ and _______.‎ ‎2. —你今天感觉怎么样?‎ ‎—不是很糟。‎ ‎—How are you feeling today?‎ 9‎ ‎—_______ _______.‎ ‎3.露西和莉莉都是我的好朋友。‎ ‎_______ Lucy _______ Lily are my good friends.‎ ‎4.你的左脚怎么了?让我给你检查一下吧!‎ What’s wrong with your left foot? Let me _______ it _______.‎ ‎5.不要看电视看得时间太长了。‎ Don’t watch TV _______ _______.‎ ‎6.哈利吃了太多的糖果,很快他就牙疼了。‎ Harry ate candy, so he soon. ‎ ‎7.布莱克先生总是担心他的小儿子,因为他太小了不能照顾自己。‎ Mr. Black is always about his little son because he is too young to .‎ ‎8.他有大量的工作要做,因此他经常熬夜,感觉很累。‎ He has lots of work to do, so he often late and feels .‎ ‎9.我们应该经常运动,这能帮助我们增强体质。‎ We should do sports often, it can us our bodies ‎10. 另一方面,我们需要吃健康食品而不是快餐。‎ ‎ ,we need to eat healthy food fast food.‎ III.补全对话 从所给的选项中选择五个选项完成对话。 ‎ A.For two days.‎ B.I’m not feeling well.‎ C.I can play soccer with my friends.‎ D.Take this medicine three times a day.‎ 9‎ E.You should sleep late again,‎ F.But don’t work too long.‎ G.I’ve also got a sore throat.‎ A:What’s wrong with you,young man?‎ B: 1 ‎ A:Do you have a headache?‎ B:No.But I’m coughing badly and 2 ‎ A:How long have you been like this?‎ B: 3 ‎ A:Open your mouth and say “Ah...”‎ ‎ Hmm,nothing serious.You’ve just got a cold.‎ B:What should I do,doctor?‎ A:Don’t worry. 4 Drink more water and have a good rest.‎ B:Oh,doctor,I can’t take a rest at home.I must go to school.I have a very important exam tomorrow.‎ A:You can go to school. 5 Then you’ll be all right very soon.‎ B:Thank you.‎ ‎【参考答案】‎ I.‎‎ 句型转换,按要求完成下列句子。‎ ‎1. make; clean 2. spent; reading 3. What should 4. ahead 5. Do; have to ‎6. we/you don’t have to 7. not ask 8. How; talk 9. give up ‎ ‎10. the matter / the trouble II. 根据汉语提示,完成句子。‎ ‎1. day; night 2.Not bad 3.Both; and 4.check; over 5.for long ‎ ‎6. too much; had a toothache 7.worried; look after himself 8.stays up; tired ‎ ‎9. help; build up 10.On the other hand; instead of ‎ 9‎ III. 情景交际 ‎ ‎1-5. B G A D F 9‎