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16. one day 有一天 (指将来/过去) some day 有一天(指将来) 如：
One day I went to Beijing. 有一天我去了北京。 Some day I’ll go to Beijing. 有一天我将去北京。
Unit3 Could you please clean your room?
1. 关于 to 的短语总结
have to do sth. 不得不/必须做某事 need to do sth. 需要做某事 hate to do sth. 讨厌做某事 like to do sth. 喜欢做某事 want to do sth. 想做某事 love to do sth. 热爱做某事 forget to do sth. 忘记做某事 start to do sth. 开始做某事 begin to do sth. 开始做某事 ask sb to do sth. 请某人做某事
2. ---Could you please clean your room?
---Yes, sure. / Sorry, I can't. I have to do my homework first. ---Could I please use the car?
---Sure. / Certainly. / Of course. / No, you can't. I have to go out. 在表示请求帮助或请求允许的疑问句中，常用 could 代替 can，以表示礼貌，
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委婉或不确定的语气，而 can 则不具备这些语气。这种情况下不能把 could 看作 can 的过去式。以上两句中用 could 是为了表示礼貌的请求。表示请求帮助或请求允许时，除了 can, could 之外，还可以用 may，句子的表达方式也各有不同，可以用不同的方式来表示同一个概念。例： Could / Can / May I use your car for a day? 作允答可以各种各样：
如同意可以说 Yes，或 Sure 或 Certainly，还可说 Yes, (do) please.或 Of course. (you may / can). 或 That's OK / all right.
如果不同意，可以说 I'm sorry you can't. 或 I'm really sorry, but I have to use it today. 要避免说 No, you can't. 这样显得很不礼貌。否定回答通常用委婉语气。
Unit4 Why don’t you talk to your parents?
1. get ( 1 ) 买
get sth. for sb. = get sb. sth. 为某人买某物
Can you get some fruit for me when you go shopping ? = Can you get me some fruit when you go shopping ? ( 2 ) 得到，到达
Where did you get the book? When did you get the letter? He got home late last night.
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（3）使，让，get + 宾语 + 宾补 使某人/某物怎么样 Please get you coat clean. Get your mouth closed. get sb. to do sth. 使某人做某事 I got him to call Jim yesterday. （4）( 逐渐) 变得…...
The weather gets warmer and days get longer . Why did the teacher get angry ?
2. how about/ what about 后跟名词/代词/动词ing形式。 （1）向对方提出建议或请求 How about going out for a walk? How about something to eat? （2）向对方征求意见或看法 How about the TV play ? How about buying the house now ? ( 3 ) 询问天气或身体情况
How about the weather in Hainan Island ?
How about your parents? Are they living with you ? ( 4 ) 谈话中承接上下文
I’m forty years old. How about you? I’m from Beijing. How about you? 3. receive 收到
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The girl was happy to receive many gifts on her birthday .
receive a letter from = get a letter from = heard from收到某人的信 I received a letter from my parents last Sunday . = I got a letter from my parents last Sunday . = I heard from my parents last Sunday . accept 接受
He couldn’t accept our suggestions but our gifts. She was very glad to receive the invitation.
I received an invitation to the party , but I refused to accept it . 4. a 6-year-old child 一个六岁的孩子
6-year-old 是由“数词 +名词 + 形容词 ” 构成的复合形容词，作前置定语，修饰后面的名词child。
“数词+名词+形容词”构成的复合形容词，中间的名词要用单数形式： a five-year-old girl 一个五岁的女孩 a two-meter-long ruler 一把两米长的尺子 a ten-story-high building 一栋十层高的楼房 a two-inch-thick dictionary 一本两英寸厚的词典 5. too...to… 太……而不能 ……
too 后跟形容词或副词原形, to 后跟动词原形, 构成不定式，句子的主语与动词不定的主语不一时, 可以在动词不定式前加逻辑主语for sb。
He is too young to join the army ( 军队) . 他年纪太小，不能去参军。
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The math problem is too difficult for me to work out . 这道数学题对我来说太难了，做不出。
too...to…可以与enough to和so…that…转换. She is too young to do the work . = She isn’t old enough to do the work . Tom is too tired to walk any farther .
= Tom is so tired that he can’t walk any farther . 6. pay , spend , cost , take 的区别
（1）pay 花费 ( 多少钱 ) , 主语是人。 sb. pay some money for sth. I paid 5000 yuan for the computer last week . 我上个星期花了5000买电脑。 （2）spend 花费 ( 多少钱或时间 )，主语是人。 sb. spend some money on sth. sb. spend some time ( in ) doing sth. I spent 5000 yuan on the computer last week .
She spent 2 hours ( in ) doing her homework . 她花了2个小时做作业。 （3）cost 花费 ( 多少钱 ) , 主语是物。 sth. cost sb. some money.
This jacket cost him 200 dollars. 这件夹克衫花费她200美元。 （4）take 花费 (时间 )，主语形式主语为It. It takes sb. some time to do sth. 花费某人多少时间做某事
How long does it take sb. to do sth? 花费某人多少时间做某事?
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