人教版英语八年级下册英语第4单元知识点归纳
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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.
（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
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。
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?
It took Liu Hong 2 hours to do her homework. 刘红花了2个小时做作业。
7. sleep , sleeping, sleepy , asleep , fall asleep , be asleep
（1）sleep 动词, 睡觉, 强调动作。
I am very tired. I want to sleep. 我很累，想睡觉。
（2）sleeping, sleep 的现在分词, 表示“ 正在睡觉”。
Don’t make so much noise. The baby is sleeping. 不要这么吵，宝宝在睡觉。（3）sleepy 想睡觉的, 困倦的。
I am a little sleepy. I’d like to go to bed. 我有点困了，我想去床上睡觉了。