Unit5 It must be belong to Carla.
Key points
(No.9 Middle School Yang Xiaohong)
Grammar points:
情态动词表示推测的用法
情态动词must, could, might和can’t分别表示不同程度的推测。must表示说话人对事物的推测,用于肯定句中。四个词中must表示的可能性最大,意思是“一定,准是” 。can表示推测主要用于否定句和疑问句中。can’t表示有把握的否定推测,意思是“不可能”。may, might, could这三个词都可以表示说话人对事物的推测,但可能性较小,意思是“有可能,也许” 。might ∕ could比may较为委婉和更加不肯定。may not ∕ might not ∕ could not表示不太有把握的否定推测,意思是“可能不会”。
must ∕may∕could∕might+be+doing sth.表示“一定∕可能正在做某事”,而can’t∕may not∕might not∕could not+be+doing sth.表示“一定不∕不可能正在做某事” 。must∕may∕could∕might﹢have done sth.表示对过去或已经完成的事情的推测。
【注意】情态动词表示推测在反意疑问句中的用法
1.He must be your math teacher, isn’t he?他一定是你的数学老师,是不是?
2.There must be a knife in his pencilcase, isn’t there?在他的文具盒里一定有一把小刀,是不是?
3. Today is Sunday. Your sister can’t be at school, is she?今天是星期天,你妹妹不可能上学,对不对﹖
Key word points
1. belong to 意思是“属于……,为……所拥有”,to是介词,后接名称或人称代词的宾格形式,不能加名词性物主代词或名称所有格,其主语通常是物。belong to没有被动式,也不能用于进行时态。
eg. This classroom belongs to us.
The bike must belong to your brother.
2. author & writer 这两个词都有“作家,作者”之意,author泛指用自己名字或笔名发表过作品的人,不强调是否以写作为职业,多用于表示某本书或某篇文章的作者;write含义广泛,一般指以写作为职业的人,侧重于职业。
eg. The author of the book is my elder brother.
Yu Qiuyu is a famous writer in our country.
3. one & it one作代词,常表示泛指,指代同类事物中的某一个,当代替特指
名称时,它前面总有定冠词或其他限定词。it作代词,表示特指,代替前面提到的同一事物。
eg. I can’t find my pen. I think I must buy one.
I can’t find my pen. I don’t know where I put it.
4. drop & fall drop既是及物动词又是不及物动词,表示物体由高处往低处落下,
或让物体落向低处,既可指有意识的行为,也可指无意识的行为。当指无意识的行为时,可与fall交换使用。
Fall表示物体由于本身的重量失去平衡或其他原因向下坠落,多为无意识的行为。它是不及物动词。
eg.1).He dropped a letter into the post-box. (指有意识的行为)
2).The man dropped ∕fell from the top of the building. (指无意识的行为)
3).He dropped his wallet on the floor. (指无意识的行为)
4).His wallet fell on the floor. (指无意识的行为)
5. because & because of because表示直接原因,回答why的提问,一般放在主句之后,也可单独存在,它引导一个原因状语从句;而because of不引导从句,其后一般跟名词或代词。
eg. Xiao Li didn’t go to school because he was ill.
Xiao Li didn’t go to school because of illness.
6. neighbor & neighborhood neighbor 名词,意思“邻居,邻人”。Neighborhood名词,意思是“四邻,街坊,居民区”。
eg. Mr. Wang lives in our neighborhood, we’re neighbors.
7. make up 组成,构成。be made up of 由…组成,被动结构
eg. Please make up a correct sentence with the five words.
The medical team is made up of ten good doctors.
8. use up 用完,用尽,up为副词,若宾语是代词,要放在up的前面。
eg. We have used up all the money.
There is some money left. When you use it up, you can call me.
9. pretend 动词,“假装,伪装”,后面常接名词,代词,动词不定式或从句作宾语,但是不能接动名词作宾语。
eg. She pretended she didn’t know me.
She pretended not to know me.
She pretended an old woman in this play.
10. escape 动词,“逃跑,逃走”,常与from, out of 连用,表示“从……逃跑∕逃走,逃离……”。
eg. The bird escaped out of the cage.
The man wanted to escape from his home.
11. ocean 名词,意为“海洋”,复数为oceans. an ocean of ∕oceans of常用于口语中,意为“极多的,数不尽的” 修饰不可数名词
eg. He thinks he has an ocean of time.
【拓展】the Pacific (Ocean) 太平洋 the Atlantic (Ocean) 大西洋
the Indian (Ocean) 印度洋 the Arctic (Ocean) 北冰洋
12. chase 动词,“追赶,追逐,追求”,常与after连用。
eg. The dog saw him running and chased after him.
The young man is chasing my sister.
【拓展】chase …away 赶走;chase …out of 赶出去;chase …round赶来赶去;chase all over到处奔波。
13. attempt 动词,“试图,企图”,后接名词、代词或不定式作宾语。
eg. The cat attempted to climb the tree,
Dong is attempting to swim from England to France.
14. be careful of “当心……,注意……”, 也可用作be careful with
be on the watch be careful look out take care pay attention to
You must be careful of your heath.
15. lift & carry lift动词,“举起,抬起,提升”,指垂直方向移动;carry动词,“搬起,抱着,扛着”,指水平方向移动。
eg. The box is too heavy for me to lift.
Please help me carry the baby onto the bed.
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