高中英语必修三第二单元知识点详解.docx

Unit 2 Healthy eating 知识点归纳
diet 日常饮食 go on a diet = be on a diet 节食 a balanced diet 平衡饮食
diet既可指习惯上吃的食物，又可指规定的食物。特指维持健康的食物。
food是一般用语，指进入身体供人或动物生长的食物。强调种类时为复数名词。
provide sb. with sth. = provide sth. for sb. supply sb. with sth .= supply sth. to sb. offer sb. sth / offer to do sth.
3.
energy原是物理学上的术语 能量”，用于人时则指 精力，活力，能量
bower (身体上，精神上，自然的)能力，体力，智力，力量
strength人的或者物体内在的或者固有的 力量
force主要指做某事而使用的外力，或者武力，部队，兵力。 一
frustrating 令人沮丧的
frustrated 修饰人或者人的声音，表情 be frustrated with 对♦ • •.感至 U沮丧
ought to
(1)表示责任，义务
He ought to look after his sister.
(2)表示建议或劝告
You ought to study 。
ought to 的否定形式 ought not to
of
(1)想起；记起
(2)考虑
(3)为…着想
(4)想；打算
think about 想；考虑
think out 想出
ought to have done = should have done 过去应该做而未做
Sorry, I didn hin k of your name just now.
We should think of the matter carefully.
Chen Guangbiao is always thinking of the poor people in the poor areas.
I am thinking of giving up smoking.
think much of 对…评价很高 think highly / well of 高度评价
think badly / little of 认为不好 think over 仔细考虑

must, may, might, should用于肯定猜测；can / could用于否定和疑问猜测。
(1)表示对现在情况的猜测，用 情态动词+动词原形”
He must be in the classroom. 他一定在教室。
(2)表示对过去情况的猜测， 用情态动词+ have +过去分词”
The ground is wet, it might have rained last night. 地是湿的，昨晚可能下雨了。
(3) can / could用于疑问句表示 可能…吗”；用于否定句表示 不可能”。
---It can ' t be him. He has gone to Xi 不可能是0班，他去西安了。
be tired of 对…厌倦；厌烦