新教材译林牛津英语八年级上册期末复习专项讲解与练习.docVIP

一、语法专题-形容词和副词的比较级 （一）形容词的比较等级(1)—用法讲解 大多数的形容词都有三个级别：原级、比较级、最高级。其中比较级表示“更……”，用于两者之间的比较，用来说明“前者比后者更……”，比较级前面一般用much, even, a little修饰，其中even, much 只能修饰比较级。最高级表示“最……”，用于三者及三者以上之间的比较，用来说明“某人或某物在某个范围He is as tall as I/me. 他和我一样高。 He is as good a teacher as his father.他和他的父亲一样是个好教师。 ② A≠ BThey didn?t do as/so much work as you did. 他们干得事没有你多。 I?ve never seen as/so old a car as this.我从来没有见过像这样旧的车。 ③ A gt; B 或 Tom is two years older than his brother. 汤姆比他的弟弟大两岁。 Our classroom is bigger than theirs. 我们的教室比他们的大。 ④ 表示倍数This room is twice as large as that one. 整个房间是那房间的两倍大。 The earth is 49 times as big as the moon.地球是月球的49倍大。 ⑤ 表示程度的递增 The days are getting shorter and shorter.白天变得越来越长了。 Our country is becoming more and more beautiful.我们的国家变得越来越美了。 ⑥ 表示两种情况同时变化 The more we get together, the happier we?ll be.=If we get together more, we?ll be happier. 我们聚得越多，我们就会越高兴。 The harder you study, the better you?ll be at English.= If you study harder, you?ll be better at English. 你学习越努力，你的英语成绩越好。 ⑦ Beijing is one of the oldest cities in China.北京是中国最古老的城市之一。 ⑧ Ann studies hardest of all the girls in our class.安妮是我们班学习最用功的学生之一。 ⑨ Lily is the taller of the twins.莉莉是这两个双胞胎中较高的那个。 ⑩ He is taller than any other student in his class.他比他班级中其他的任何学生高。 = He is taller than any of the other students in his class. = He is the tallest students in his class. 【小试牛刀】 1. It is not so______________ (beautiful) as the one back home. 2. Li Lin is not as______________ (active)as he used to be. 3. The air pollution is much______________ (serious)in our city than in theirs. 4. This is one of the______________(delicious)dishes in this restaurant. 5. Judy got the______________(many)new ideas of all the students here. 三、祈使句 （一）祈使句用法讲解 祈使句指的是表示命令、请求、建议或劝告的句子。其主语you常省略，谓语动词用原形，句末用感叹号或句号，读降调。 1. 肯定的祈使句 （1）动词原形+其他 Stand up, please. = Please stand up. 请起立。 （2）Be + n./adj. Be a good boy! 要做一个好孩子! Be careful! = Look out! = Take care! 小心 / 当心！ （3）Let + 宾语 + 动词原形 + 其它成分 Let me help you. 让我来帮你。 Let?s go to sch