形容词比较级详解.doc

形容词比较级详解当我们需要对两个事物作比较时，需要用到比较级。表示“更的”，或“比更的”。比较级的句子结构通常是： A + 动词be (am , is , are ) + 形容词比较级 + than（比）+ B 如： Im taller and heavier than you. （我比你更高和更重。） An elephant is bigger than a tiger. （一只大象比一只老虎更大。） 形容词的比较级是在形容词的基础上变化而来的，它的变化规则是： 一般的直接在词尾加er ，如 tall - taller , strong stronger 以e结尾的，直接加r ，如 fine finer 以辅音字母加y结尾的，先改y为i再加er，如funny - funnier 双写最后的字母再加er如big bigger,hot hotter ，fat fatter , sad sadder ,thin - thinner注意 ：比较的两者应该是互相对应的可比较的东西。典型错误：My hair is longer than you.（我的头发比你更长。） 比较的两者是我的头发、你（整个人），那么比较的对象就没有可比性。 应该改为：My hair is longer than yours. 或 My hair is longer than your hair. 比较级专项练习: 一. 写出下列形容词的比较级。 tall _ old _ young _ short _ small _ big _ hot _ thin _ sad _ fat _ heavy _ long _ nice _ funny _ strong _ beautiful _ interesting _ friendly _ _二、根据句意写出所缺的单词 .(1) Im 12 years old. Youre 14. Im _than you. (2) A rabbits tail is _than a monkeys tail. (3) An elephant is_ than a pig. (4) A lake is_ than a sea. (5) A basketball is_ than a football.（贵的） 三、根据中文完成句子.(1) 我比我的弟弟大三岁. Im _ _ _ than my brother. (2) 这棵树要比那棵树高. This tree _ _ than that one.(3) 你比他矮 四厘米. You are _ _ than him. (4) 谁比你重? _ _ _ than you？一般过去时详解一 动词的过去式的构成规则： 1.一般直接在动词的后面加ed如 worked , learned , cleaned , visited 2. 以e结尾的动词直接加d如 lived , danced , used 3. 以辅音字母加y结尾的动词要改y为i再加ed如 study studied carry carried worry worried 4. 双写最后一个字母如 stopped 5.不规则变化的动词小学阶段要记住以下动词的原形和过去式： sing sang eat ate see saw have had do did go went take took buy bought get got read read fly flew am/is was are were say said leave left swim swam tell told draw drew come came lose lost find found drink drank hurt hurt feel felt 练习题 一 用所给词的适当形式填空。He _(visit) the Great Wall last year.2. We_ (have) a good time yesterday.3. We often _ (go) to school by bus last year.4. I _(live)in the village when I was a child.5. Mike_(see) a big tiger in the park last year.6. Sam_ (do) the housework yesterday.7._ (do) you _(enjoy) yourself yesterday?8._ (do)you _(play) the violin yesterday? No, I didnt. I_ (draw) some pictures there. 二.选择填空( ) 1. She watered the flowers _.A tomorrow B sometimes C yesterday () 2.What _ Mike do last weekend ? A do B does C did( ) 3.I _ my room last Sunday. A cleaned B clean C am cleaning( ) 4. I often help my mother _ housework. A does B did C do( ) 5. _ you _ TV last night ？ A Do, watch B Did, watch C Did, watched( ) 6.-Did your father write an e-mail yesterday ？ A Yes, he did. B Yes, he does C No, he dont( ) 7.They _ on a trip in February ,2007. A are going B going C went( ) 8.Were going to