高中英语必修三第二单元知识点详解

-教育精选-Unit 2 Healthy eating知识点归纳1. 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。2. 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”power (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。4. frustrated 修饰人或者人的声音，表情 frustrating 令人沮丧的 be frustrated with 对.感到沮丧 5. 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 hard. 你应该努力学习。 （3）ought to 的否定形式 ought not to（4）ought to have done = should have done 过去应该做而未做6.think of （1）想起；记起 Sorry, I didnt think of your name just now. （2）考虑 We should think of the matter carefully.（3）为着想 Chen Guangbiao is always thinking of the poor people in the poor areas. （4）想；打算 I am thinking of giving up smoking. think about想；考虑 think much of 对评价很高 think highly / well of 高度评价 think out 想出 think badly / little of认为不好 think over 仔细考虑 7. 情态动词 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 cant be him. He has gone to Xian. 不可能是他，他去西安了。8、 be tired of 对厌倦；厌烦 be tired of 对厌倦；厌烦 be tired from / with 由于而疲惫 特别提示：tired of为形容词短语，在句中作状语。形容词作状语时，多放在句首或句末。在句中作原因状语、条件状语或伴随状语。9. lose weight 减肥 put on weight 增肥；长胖 10 have sb. do sth. 让某人做某事have sb. / sth. doing 让某人做某事；让某情况发生have sb. / sth. done 使某事被做11. get away with 不受惩罚；被放过 get across使了解 get around/round/about到处走动 get down to 着手，开始get down下来；使沮丧 get over恢复 get through完成get away from 摆脱 get along with 与相处 get out of 从中出来12. tell a lie / lies to do something 为了做而撒谎 tell a lie / lies with sb. = lie to sb. 对某人撒谎13. lie- lay-lain-lying 躺，位于lie -lied-lied- lying 撒谎lay- laid- laid- laying 放置，下蛋14. too much 后接不可数名词；位于动词后，修饰不及物动词much too 修饰形容词或副词15、 earn ones living 谋生 =make a living16. although / though / as / while / no matter / _ever 引导让步状语从句，要正确区分主句，从句之间的逻辑关系。17. cusrom 风俗，习惯 customer 顾客，消费者18、in debt欠债be out of debt不欠债 get into debt=run into debt=fall into debt 负债 in ones debt 欠某人情19. consult sb./ sth. 查阅某事物/请教某人 consult sb. about sth. 就某事咨询某人 consult with sb. 与某人交换意见，商谈20. be willing to do 愿意做某事 be unwilling to do 不愿做某事21.glare vi.怒视；发耀眼的光glare 指由于羡慕、恐惧、惊讶而用恐吓、凶狠或愤怒的眼光看。gaze指由于惊讶、好奇、喜悦、同情或感兴趣而目不转睛的看。stare指固定的凝视，暗示好奇、勇敢、无礼貌或愚蠢。glance “一瞥”22、spy on暗中监视spy into 探听 spy out 觉察；发现 spy out the land 了解情况；估计形势23. benefit （1）vt. 对有利 The fresh air here will bebefit you. （2）vi. 受益；得到好处 benefit from/by You will benefit from the fresh air here. 24、 cut down （1）削减；减少 You should cut down your smoking. 你应该减少吸烟。 （2）砍倒 Only a few trees can be cut down for firewood.cut across走捷径 cut at向砍去 cut in 插嘴；干预 cut off切断；挡住 cut out 删掉；切除 cut up 切碎；使难过25、before long 不久以后,用于一般将来时态。long before表示“很久以前”，用于过去时态。26、 put on （1）穿上；戴上 Put on your coat, its cold outside. （2）上演；表演；展出 They put on a new play last week.（3）假装 He put on a smile when he saw me. put aside 放到一边；存储 put away 收起来；存储 put back 放回原处；拨慢put down 放下；写下来 put forward 提出；推荐 put off推迟；让下车 put out 扑灭；生产；发表 put up 举手；搭建；张贴 put up with 忍受；容忍27. the+序数词 表示第几个 a+序数词 表示再一个，又一个28. to做介词的固定搭配：be / get / become used to 习惯于 be given to 喜欢；癖好 be related to 与有关系 be addicted to 沉溺于 be opposed to 反对 devote oneself to献身于 be admitted to 被录取；准进入 be attached to附属于 adjust to 适应 be known to 为所知 be connected to连在一起 compare to把比作 access to 接近(某地的)方法 accord