人教版八年级英语上册Unit3课件学习资料.ppt

4. Do you study English harder? 5. Do you sing better? Yes, I do. I study English harder than I was two years ago. Yes, I do. I sing better than I was two years ago. 知识点小结 形容词和副词的用法： 1. 形容词+名词（形容词常放在名词前做定语） a tall boy delicious food 系动词+形容词（形容词放在系动词之后做表语，构成系表结构） She is beautiful. 实意动词+副词（副词常放在实意动词之后，尤其是在句末） run slowly 2. 形容词和副词的比较级（两者产生比较，就用比较级） 比较级的标志词： 1）句中有than 2）句末有A or B 形式 3）根据句意判断有比较的情况 Eg. He is shorter than Tom. Who is taller, Tom or Bill? Tom is taller of the two boys. 3. 同级比较句型： A + 系动词 + as + 形容词原级+ as + B. She is as shy as her sister. A + 系动词(否定) + as/ so + 形容词原级+ as + B. She isn’t as/ so shy as her sister. A + 实意动词 + as + 副词原级+ as + B. She runs as slowly as her sister. A + 实意动词（否定） + as / so+副词原级+ as + B. She doesn’t run as/ so slowly as her sister. 4. 形容词、副词比较级变化规则 1）单音节词在词尾加er. tall — taller short — shorter great — greater 2) 以不发音字母e结尾的直接加r. nice — nicer late — later fine — finer 3) 以一个辅音字母+y结尾的重读闭音节单词，应改y为i再加er. easy — easier heavy — heavier 4) 以一个元音字母+一个辅音字母结尾的重读闭音节单词，应双写辅音字母再加er. big — bigger 5）多音节词和部分双音节词，以ly结尾的副词（除early, badly外），比较级在前面加more. useful—more useful slowly—more slowly happily—more happily important—more important 5. 形容词和副词比较级之前可以用much, even, a little, far, still, a bit, a lot来修饰，表示比较的程度。 Lesson One is much easier than Lesson Two. Tom looks even younger than before. 6. both 与all的区别： 两者通常都放be、V情、V助之后，V实之前。 both指“两者都…”，all指“三者（或三者以上）全、都…”。 —What are your parents? — They doctors. A. are all B. are both C. all are D. both are 　　 B 写出下列单词的比较级。 funny quiet serious smart outgoing quickly funnier quieter more serious smarter more outgoing more quickly tall nice big funny outgoing old older taller nicer bigger funnier more outgoing late expensive thin smart high fat interesting more interesting later more expensive thinner smarter higher fatter 1.Tina is ______ (calm) than Jill. 2.Hi