(3)look like…看起来像，像是……的样子
(4)look out向外看，当心
(5)look over检查
e.g.
a)The nurse looked after the babies. 护士照料婴儿。
b)What are you looking for ?你在找什么？
c)You look like your father.你长得像你父亲。
d)It looks like rain.看起来像是要下雨了。
e)He was looking out of the window.他正向窗外看。
f)Look out! The train is coming.小心！火车就要来了。
g)The doctor is looking over him.医生在给他作检查。
3.meal与dinner
①dinner意为“正餐”，指一天中吃得较丰富的一顿饭，一般在中午或晚上吃，此时dinner 为抽象名词，一般不带冠词。
②meal意为“饭”，指一日三餐的通称，包括breakfast(早饭)，luch(午饭)，supper(晚饭)，是可数名词。
e.g.
a)Would you like to have dinner with us ?
你和我们一起吃饭好吗？
b)We have three meals a day.
我们一天吃三顿饭。
日常交际用语：
1.I/You/We/They have to …
(help with the housework帮做家务wear more clothes多穿些衣服)
2.She/He has to …
(mend her/ his bike修自行车do her /his homework做作业)
3.I/He/She/You/We/They had to …
(stay at home yesterday昨天呆在家里do some washing last night昨晚洗些衣服)
4.Do I have to…?Yes, you do (have to ).No, you don’t …
(eat less food少吃些食物look after the baby照顾婴儿)
Does he/she have to …? Yes, he/she does.
No, he/she doesn’t.
(do all the exercises做所有的练习bring some food带些食物来)
5.Who/Whom do we have to visit ?我们必须拜访谁？
e.g.
a)What does he have to say in the meeting?
在会上他该说什么？
b)Which exercise does he have to do ?他必须做哪个练习？
“have to ”与when引导的时间状语从句，或if引导的条件状语从句连用的句型训练：
1.用if连接下列各句
e.g.
a)You want to be thinner and healthier. You have to eat less food.(if )
→If you want to be thinner and healthier, you have to eat less food.
(1)What do you have to do ? Your mother is ill.
(2)You don’t feel well. You have to see a doctor.
(3)It will rain tomorrow. We have to stay at home.
(4)Mother isn’t at home. I have to do the cooking.
2.用when连接下列各句
e.g.
a)You are at home. What do you have to do round the house ?(When)
→What do you have to do round the house when you are at home ?
(1)I am at school. I have to study hard.
(2)You are ill. You have to stay in bed.
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