必修4unit4讲解

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1、1. approach/way/method/meansapproach 除了意为“ 方法”之外,还有“接近”的意思。an approach to(介词)“的方法” 。way 构成 in the way“用这种方法”;the way to do/the way of doing (to 为不定式)“做某事的方法”。method 构成 with a method “用一种方法”。means 意为“ 方式,方法”。单复数同形,构成 by means of “通过方法”。He put up a new approach to the difficulty.他提出了解决这个困难的新方法。Can you

2、 tell me the way to work out the maths problem?你能告诉我做那道数学题的方法吗?We should improve our teaching method, with which we can make ourselves understood better.我们应该改善我们的教学方法,用这些方法,可以使学生更好的理解我们。We arrived there by means of plane. 我们坐飞机到达那儿。高手过招(1)单项填空There is no easy to the mathematics. A. Way B. mean C. me

3、thod D. approach(2)单句改错 His approach for the problem is special and proves good.All the approaches of the airport were blocked by the police.2.possible/probable/likelypossible 表示客观上潜在的可能性,也许实际发生的可能性并不大;一般不用表示人的词作主语。只有 possible 后面可以接 for sb. to do sth.,而 likely 和 probable 都不能。probable 表示有几分根据的推测,比 po

4、ssible 表示的可能性大。换句话说, probable 的“有可能” ,是指有 1 实际的依据或逻辑上合乎情理。一般不用表示人的词作主语。likely 强调表面上看来有可能,与 probable 意思接近,有时可以互换,但 likely 常暗示从表面迹象来判断,probable 则指经过权衡正反两方面的理由后相信某事是真实的或大概会发生。只有 be likely 前面的主语可以是人,而 possible 和 probable 则不能。It is possible to transmute one form of energy into another.把某种形态的能量改变成另一种形态的能量

5、是可能的。It is possible that the first people crossed into Austalia from Asia on a great land bridge.第一批从亚洲进入澳大利亚的人可能是从一座巨大的陆地桥上过去的。It is probable that our school will buy a new computer.我们学校很有可能买一台新电脑。It is probable that she forgot.她很可能是忘了。Its very likely that hell succeed.=He is very likely to succeed

6、. 他极有可能成功。Im hardly likely to finish it within a week.我不可能在一周内把它干完。单项填空I cant go out. It is very that Mary will ring me tonight. A. Likely B. possibly C. probably D. perhapsTom was to win first prize in the competition, but his illness made him miss the chance. Possible B. probable C. likely D. Mayb

7、e3. Defence n. 保卫,防御;防卫设备 ;(被告的)答辩;辩护常用结构 in defence of 保卫;为辩护注意: defence 后接“ 入侵者” 或“造成危害者”时用介词 against;若后接“被保护者”时用介词 of。 The forest will act as a defence against desert dust.森林能起到防御沙漠尘土的作用。This fort was once the main defence of the island.这座堡垒曾经是这个岛上主要的防御设施。The defence of the accused was rather wea

8、k.被告人的辩护软弱无力。联想拓展 defend v. 防护;辩护;防守;保卫The wall was built to defend the road from being washed away by the sea.建这个围墙是为了保护这条路不被海水冲垮。易混辨析defend/protect/guard/preserve这四个词都有“ 使安全或保持安全状态不遭受危险、攻击或伤害” 的意思,但它们之间还有些差异。defend 含有 “采取措施抵制进攻”的意思。protect 常含有“提供安全的方式来驱开不适、伤害或进攻”的意思。guard 含有“看守 ”的意思。preserve 含有“ 采

9、取措施维护 的安全”的意思。2 完成句子 那位警察看守犯人。the prisoners.当那只狗攻击我时,我拾起一根木棍自卫。myself.他戴着墨镜以防他的眼睛被强烈的太阳光晒伤。his eyes from the strong sunlight.4.curious adj.好奇的,感兴趣的;奇异的,不同寻常的The foreign tourists were surrounded by the curious children. 外国游客被一群好奇的孩子包围着。He is suffering from a curious disease.他患了一种奇怪的病。常用结构:be curious

10、about 对感到好奇 be curious to do 急于做/ 极想做联想拓展curiosity n.好奇 curiously adv. 好奇地 out of curiosity 出于好奇I asked out of mere curiosity.我只不过是出于好奇问问罢了。三重点句型:AB. be likely to do /It is likely thatC. neither/nor/so+系动词(情态动词或助动词)+主语.1. 信息提取:the first man to arrive 为不定式作后置定语意为:第一个到的人第一个到的人受到了热烈的欢迎。_.2. However, pe

11、ople from places like Spain, Italy or South American countries approach others closely and 信息提取: be likely to do 可能做某事如果他继续这样做,他不可能成功的。_.3. Not all cultures greet each other the same way, in the same way with touching or distance between people.信息提取:“neither/nor/so+系动词(情态动词或助动词) +主语” ,表前面的情况也适用于后者,s

12、o用于肯定的场合,neither/nor 用于否定的场合。a.你会说英语,我也会。_b.玛丽不喜欢这部电影,我也不喜欢。_.c.杰克对目前的生活不满意,我也不满意。represent vt.代表,象征;作为的代表或代理人;(尤指以绘画,雕刻等)表现;描绘;描写represent sb. as/to be 宣称某人为represent sth. to sb. 向某人说明某事;向某人传达某事represent sth./sb. as sth./sb. 把描绘成representation n代表,代表团,代理representative adj.代表性的 n代表,代理人易混辨析represent/

13、stand for/on behalf ofrepresent 指“ 代表某人/某个团体 /政府等,或指某种标志代表什么,某物表现/描绘的是什么”。 stand for 通常指字母、数字、符号等代表 /象征什么。on behalf of 指代表/代替某人,只能作状语。即学即练 1玫瑰花是爱情的象征。 The rose _ love.这幅画表现的是海上风暴。 This picture _ a storm at sea.她把自己描绘成世界上最好的母亲。 She _ herself _the kindest mother in the world.(4) 他称自己是专家。 He _ himself

14、_ an expert. Represents Represents Represents; as represents; to be(5)选词填空(represent/representation/representative) Each colour on the chart a different department.The were all amazed by what had happened in the factory.Our company has no in Africa.答案: represents representatives representationmajor

15、me d 1)adj. more important, great(er) 较大的,较重要的,主要的Vi. specialize in a certain subject( at college or university) 主修,专攻major in 攻读,专修,主修专业,陆军上校2)the majority 作主语,谓语动词的数根据其所指代内容确定单复数形式。【观察思考】填出 Major 在句中的词性及意思。1) This is a major road. _Water plays a major role in our life. 3) Diligence plays a major part in our study. 4) The car needs major repairs.

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