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1、七年级英语下：Unit 5 Popular Pets esson 3重难点讲解教科版Unit 5 Popular PetsLesson 3(一)大声读单词1. anything pron. 任何事物2. exciting adj. 使人激动的3. sound v. 听起来；发出声音4. song n. 歌曲5. frown v. 皱眉6. singer n. 歌手（二）重点词汇1. anything 要点：pron. any object, occurrence, or matter whatever. 任何东西，任何情况，任何事情Is there anything in that box?
2、在那盒子里有什么东西吗？He will do anything for a rich life.为了过上富裕的日子他什么都愿意干。It isnt anything like as hot as it was yesterday. 今天完全不像昨天那么热。anything but: By no means; not at all: 根本不；绝不：I was anything but happy about going. 我根本不喜欢去。2. exciting 要点：adj. creating or producing excitement: 兴奋的或令人兴奋的：“It was an exciti
3、ng hunt, but the fox escaped.”“这真是一场扣人心弦的追猎,可惜狐狸还是跑了。”An Exciting Trip 一次令人兴奋的旅行 3. sound 要点：v.1）to make or give forth a sound: 发声: 制造或发出声响： When the bell sounds，you must come in. 铃响时，你必须进来。2）to present a particular impression: 听起来: 给人一种特别的印象：That argument sounds reasonable. 那个观点听起来有道理His explanatio
4、n sounds all right. 他的解释似乎有理。Your idea sounds a good one. 你的想法听起来很好。n. 声音, 语音, the sound of birds singing 鸟儿歌唱的声音adj. 1）free from disease or injury. 健全的, 完好的；没有疾病或损伤的 children of sound mind and body 身心健康的孩子2）having a firm basis; unshakable: 基础牢固的；不可动摇的：a sound foundation 牢固的基础Ive repaired the roof a
5、nd its quite sound now. 我修了屋顶，现在它挺坚固的。3）based on valid reasoning: 合理的；建立在有效推理之上的：a sound observation 合理的说法4. song n. 歌曲 deeds that move people to song and tears 可歌可泣的事迹songs of victory 凯歌 songs of victory凯歌 a folk song民歌a popular song流行歌曲 the song of the wind 风声5. frown v. 1）to wrinkle the brow, as
6、in thought or displeasure.皱眉: 沉思或不高兴时皱起眉毛; He frowned as he tried to work out the sum. 当他试图算出总数的时候他皱起了眉头。Dont frown at me like that. 不要那样对我皱眉(不高兴)。3）to regard something with disapproval or distaste: 不同意或不欣赏某事She frowned on the use of so much salt in the food. 她不同意食物里放这么多盐。6. singer 要点：n. one who sin
7、gs, especially a trained or professional vocalist. 歌手：唱歌的人，尤指受过训练的或职业的歌唱家pop singer红歌手, 流行歌曲歌手 touch singer演唱伤感恋歌的女歌手（三）重点解析形容词的比较级和最高级的构成规则变化构 成 方 式原 级比 较 级最 高 级单 音 节 词 和 少 数 双 音 节 词一般在词尾加-er读作/，-est读作/ist/tall, short, long, low, high, clevertaller, shorter, longer, lower, higher, cleverertallest,
8、shortest, longest, lowest, highest, cleverest以字母e结尾加-r或-stnice, fine,late, wide,nicer, finer, later widernicest, finest, latest, widest重读闭音节，词尾只有一个辅音字母，应先双写这个辅音字母，再加-er或-estbig, thin,hot, redbigger, thinner, hotter, redderbiggest, thinnest, hottest, reddest以辅音字母 + y结尾的双音节词改“y”为i, 再加-er或-esteasy, ear
9、ly, happy,easier, earlier, happiereasiest, earliest, happiest多音节 和部分双音节词在词前加more或mostdelicious, beautiful, popular, carefulmore delicious, more beautiful, more popular, more carefulmost delicious, most beautiful, most popular,most careful2）不规则变化：有少数形容词的比较级和最高级形式的变化是不规则的，如下表：原 级比 较 级最 高 级good好/well健康
10、的betterbestbad坏/ill病的worseworstmany许多/much许多moremostlittle小的，少的lessleastfar远的farther更远的further更进一步的farthest最远的furthest最远的，最大程度的old老的，旧的older较老的，较旧的elder较年长的oldest 最老的，最旧的eldest最年长的注意：（1）少数单音节词既可加-er或-est,又可用more或most构成比较级和最高级。如：calm, free, fit, fond, huge, true, pale等。（2）下面的形容词既可把y改为i,再加-er，-est,又可用
11、more，most构成比较级和最高级。如：angry, cloudy, lucky, rainy, sleepy, sunny, unhappy, uneasy, windy, worthy等。形容词比较级、最高级的用法1）原级的用法（1）表示双方程度相等，用“asas”结构，意思是“和一样”。如：Mike is as tall as Tom.迈克和汤姆一样高。He is as busy as before.他还是和以前一样忙。There are as many students in our class as in their class.我们班的学生人数和他们班的一样多。（2）表示“不如”
12、或“不相等”用“not + as/so + 形容词原级 + as +比较对象”。如：Jack is not so tall as his grandpa.杰克不如他爷爷高。Li Lei is not as good at maths as Li Ping.李磊不如李萍数学学得好。注意： 表示倍数，如“一半/两倍/三倍/四倍/”等用“half/twice/three/four/times + asas” 结构。如：I study twice as hard as you. 我学习比你用功一倍。We got three times as many people as we expected. 来人
13、的数目是我们预期的三倍。2）比较级的用法（1）表示两个人或事物进行比较时用比较级基本句型主语 + 谓语（系动词）+ 形容词比较级 + than + 对比成分如：He is taller than his father.他比他父亲高。Our classroom is larger than yours.我们的教室比你们的大。（2）强调比较级超出比较程度时，形容词的比较级前可用much, far, a lot, still, no, a little, even, any, a great deal等状语来修饰。如：This is even harder than steel.这个东西比钢还硬。T
14、oday its rather colder than yesterday.今天比昨天冷多了。This story is even more interesting than that one.这个故事比那个更有趣。We have a much better life now.我们现在的生活好多了。（3）可用“比较级 + and + 比较级”结构（两个同义形容词比较级，后面不接than 从句），表示“越来越”的意思。如：She became more and more interested in music.她对音乐越来越感兴趣了。Computers are getting smaller a
15、nd smaller, and computing faster and faster.计算机变得越来越小，而计算速度却越来越快。（4）用“the + 比较级+ the + 比较级”，表示“越就越”。如：The more careful you are, the less mistakes you would make.你越小心，出错就越少。The more exercises you do, the healthier you will become.你越锻炼，就越健康。注意： 如要表示“主语比他或他所在单位的其他人、物都”，要用“than any other”,以便把自己排除在外。如：这个房间比房子里别的房间都大。 误：This r
