八年级英语Unit12 What’s the best radio station Grammar Studies新课标 人教版

八年级英语Unit12 Whats the best radio station Grammar Studies新课标 人教版Part 2 Teaching resourceIII. Grammar study1.形容词的比较级和最高级在英语中，当我们把一个人或者物进行比较的时候，就要用形容词的比较级。如果是在句子中提到了对比的双方，就必须在比较后面加单词than。比如：Its smaller than the blue one. (它比那个蓝色的还小).但是如果形容词比较级所指非常清楚，比较级也可以独立存在。比如：I havent got a larger dress。而对于形容词的比较级和最高级的变化规则如下：(1)大多数单元音节的形容词的比较级是在原形的后面加上-er，比如：small-smaller, large-larger。(2)在重读闭音节中，辅音加元音的单词中，双写辅音字母，然后加-er,例如：hot-hotter, big-bigger。(3)有些以-y结尾的双音节形容词，如果-y前面是一个辅音字母，变比较级的时候就要把-y变成-I，然后再加-er.例如：pretty-prettier.(4)在多音节当中，用more+形容词原形。(5)不规则变化little-less-least,manymuch-more-most,wellgood-better-best,bad-worse-worst,far-rartherfurther-farthestfurthest,difficult-more difficult-the most difficult(6)对于最高级，它是在形容词原形加上-est，同时在最高级形容词之前要加定冠词the。例如：This is the largest in the shop. I am the youngest in the class. He is the tallest policeman I have ever seen. 2. Could you ? 用在表示请求方面.语气比can you更加婉转.例如：Could you tell me the way to the post office? (请你告诉我到邮局的路怎么走好吗？) Could you show me another blue dress? 你能再给我看一件蓝色的短裙吗？3. asas 意思是和某人某物一样。例如：This story is as funny as that one.This room is as clean as that on. 否定形式是在前面加not.例如:I am not so tall as him.