Languague points

1. attitude n. 态度，看法[c]①have an attitude towards/on/about/to…对……有个态度/看法典题赏析：1) It is important to learn to take a positive attitude _______ life when you are _______ trouble.A. to; underB. of; inC. to; inD. with; in2. anchor vt. 扎根于；使基于；下锚；使固定n. 锚[c]①be anchored in 扎根于……之中②cast/drop anchor 抛锚3. base n. 根基，基础，底部；根据地，基地[c]vt. 把……基于……，把……基地设在……①base...on/upon ... 把……建立在……的基础上②be based on/upon 以……为基础，基于……之上③at the base of 在……的根基，在……底座④make...the base for 使……成为……的根据地▲basis n. 基础，基地[c]（复：bases）⑤on the basis of 以……为基础⑥form the basis for 奠定了……的基础辨析：base与basis的区别1) base 指具体的基础，物体的底部或根基。

The base of the dam is very wide and strong. 大坝的基础很宽很结实。

He has served in a naval base since 1979. 自从1979年以来，他在海军基地服役。

2) basis 指抽象的基础。

The basis of a good marriage is trust. 美满婚姻的基础是信任。

4. cautious adj. 小心的，谨慎的①be cautious about/of/with 对……谨慎/小心②be cautious to do sth. 小心干某事▲caution n. 小心，谨慎[u]；警告，训诫[u]v. 警告，提醒③with caution 小心地，谨慎地④without caution 不小心地，不谨慎地▲cautiously adv. 小心地，谨慎地典题赏析：1) When it comes to second hand cars, one has to be as _______ as possible about the source and the condition of them.A. cautiousB. patientC. urgentD. casual2) When driving on the busy road, you can never be _______.A. cautiousB.too cautiousC. carefulD. too careless5. eager adj. 热切的，渴望的，急不可待的①be eager to do sth. 渴望干某事②be eager for/about/after 渴望……③be eager tha t…渴望……▲eagerness n.▲eagerly adv.辨析: eager与anxious的区别1) eager强调对成功的期望或进取的热情，含有积极向上的意思。

年级高二学科英语版本人教新课标版课程标题选修7 Unit 3 Under the sea -words、phrases and language point编稿老师冯振宇一校林卉二校李秀卿审核刘晓军一、学习目标知识目标：学习本单元的单词、短语和句型。

能力目标：能够用这些单词、短语及句型进行语言表达，并能够解答与之相关的习题。

二、重点、难点1、重点：●重点单词annual, witness, pause, drag, urge, abandon, reflect, aware, scare●重点短语in the meantime, help…out, upside down, sort out, come on, ahead of, have on●重点句型1) As we drew closer, I could see a whale being attacked by a pack of about six other killers.2) “And those others are stopping it diving or fleeing out to sea,” George told me, pointingtowards the hunt.3) I’m sitting in the warm night air with a cold drink in my hand and reflecting on the day-aday of pure magic!4) The fish didn’t seem to mind me swimming among them.2、难点：with的复合结构及几组同义词的辨析三、知能提升（一）重点单词［单词学习］1. annual adj. 每年的；按年度计算的n. 年刊；年鉴annually adv. 年度地，每年地【用法】an annual income 年收入an annual report 年度报告【例句】Premier Wen Jiabao noted that the two most important problems would be previous to anything else in the government annual report.温家宝总理在政府年度报告中指出要优先解决这两大问题。

Section ⅢUsing Language & Assessing Your Progress重点词汇讲解Point1alleviate用法详解alleviate vt.减轻;缓解常见搭配:alleviate the problem/situation/suffering减轻/缓解问题/状况/痛苦A number of measures were taken to alleviate the problem.采取了一系列措施缓解这个问题。

Our proposed approach would help to alleviate this problem.我们建议的方法将有助于缓解这一问题。

经典例题单句语法填空(1)Nowadays, a great deal can be done (alleviate) back pain.(2)It is a common problem that can (alleviate) and cured if you act quickly.参考答案(1)to alleviate(2)be alleviatedPoint2 in turn用法详解in turn可做状语, 常位于句中或句末。

其含义有以下两种:(1)转而,相应地Theory is based on practice and in turn serves practice.理论来源于实践,反过来又服务于实践。

(2)轮流,依次,逐个The children called out their names in turn.孩子们逐一自报姓名。

辨析比较in turn,in return与in return for易混词组区别in turn ①意为“相应地,转而”;②意为“依次,轮流,逐个”。

Increased production will, in turn, lead to increased profits.增加生产会继而增加利润。

Section ⅢUsing Language & Assessing Your Progress重点词汇讲解Point1clarify用法详解(1)vt.澄清;阐明Give an example to help clarify what you mean.举个例子来帮你说明你的意思。

Can you clarify your attitude towards the matter?你能阐明一下你对此事的态度吗?(2)vt.(尤其指通过加热使黄油等)纯净;净化clarify butter使黄油纯净→clarified butter已净化的黄油clarify water净化水→clarified water纯净水归纳拓展clarification n澄清clarity n清楚；明确clarifying adj澄清的clarified adj纯净的clarify one’s stand/attitude/mind阐明立场/态度/想法clarify matters澄清真相clarify one’s position 澄清某人的立场You can clarify this question if you study British history.如果你学习英国历史,你就可以弄清楚这个问题。

特别提醒clarify是以后缀-ify结尾的动词,-ify意为“使……变成;使得”。

以后缀-ify结尾的动词还有:simplify简化,beautify美化,classify把……分类。

经典例题1.单词拼写The man in charge of the company was unable to (阐明)the situation,so people were expecting a further explanation.2.单句语法填空(1)In order to make yourself fully understood by others,some further (clarify)of your opinion is needed.(2)Thank you for writing and allowing me (clarify)the present position.(3)The union has written to Zurich asking for (clarify)of the situation.参考答案1.clarify2.(1)clarification句意:为了让别人完全理解你,你需要进一步阐明你的观点。