八下Unit7知识点

1、八下 Unit7 知识要点八年级下 Unit7 知识点【学一学】1.It ' s 8,844 meters htg府 8,844 米高。Itis meters/kolimeters/squarekilometers+high（long,wide ）.它泮（insize 高（长，宽。）宥多长（宽，高）”时，将数词和数量单位放在表示长宽高 的形容词前【做一做】1 .The table is two meters （long） and one meter （ wide ）2 .-How long is the bridge ?3 -It s 1,000 meters .A. the long

2、estB. longer C. longest D. long【学一学】 2.China has the biggest population in the world . Population 是集合名词，无复数形式，在句中作主语时，指一个整体，谓语动词用单数。 The population today is growing veryfast .表示某一范围内有多少人口时，用 " have/hasapopulationo傲 字 ” Indiahasapopulation of 1 billion .问某地有多少人 口时，用 What is /was the population o

3、f或 How large is/ was thepopulation of ? 表示人口多少时，用 large /small ,而不能用many /more /few 等。【做一做】1 is the population of our city ?-Sorry , I don t know .A. HowB. WhatC. How manyD. How much2.China a population of 13 billion .A. haveB. hasC. isD. are【学一学】 3.China has a much longer history than the US .一些副词可

4、以位于形容词，副词比较级之前表示比较的程度，如;far,much,even ,a lot , a little , a bit 等。【做一做】1 .This shirt is than the one on the desk .A. much more beautiful B. a lot of beautifulC. more far beautifulD. beautiful2.1 study hard this term , but Jenny studies much .A. hardB. harderC. hardestD. the hardest【学一学】4.one of the

5、+形容词最高级+复数名词【做一做】1.One of (dangerous) sports is mountain climbing .2. Alex is one of my good ( friend ).【学一学】 5.It is very hard to take in air as you get near the top=To do sth is hard .It s +(adfoj.r+sb.) +to do sth.常用的形容词有hard、 difficult 、 possible、 important 、 useful 等【做一做】1.1 t is important for

6、us (learn ) English well.1.2 t s good fresh air inthe morning .A. to take inB. have inC. to take turnsD. give in【学一学】 6、 Feel free to do sth 按照自己的意愿做某事【做一做】Please feel free （ ask ） me any question in class .【学一学】7、形容词和副词的比较级和最高级1） 大多数形容词有三个级。1）原级:常用结构as . as.像.一样否定；notas / so asZhang Hong is as tall

7、 as Tom.2） 比较级（用于两者之间的比较）常用结构：形容词比较级 than .He is taller than I.3） 最高级（用于三者或三者以上的比较），常用结构 :the +形容词的最高级 of / in .He is the tallest of the three.He is the funniest in his class.4） 形容词、副词比较级和最高规则变化和不规则变化。规则变化 :1） 一般情况下，单音节或双音节的形容词（或副词）比较级+ er,最高级+ estclever cleverer cleverestfew fewer fewest2）以e结尾的词，比较

8、级+ r,最高级+ st即可。如：nice nicer nicestcute cuter cutestlarge larger largest3）以辅音字母+ y结尾的变y为i + er或esteasy easier easiesthappy happier happiest4）.双写最后一个辅音字母+ er或est的词，fat fatter fattestthin thinner thinnesthot hotter hottest5）多音节和部分双音节的词需要在形容词原级前十 more构成比较级，+ the most构成最高级。beautiful more beautiful the most beautiful又如 : delicious, popular, important, interesting, expensive, creative双音节的词如 :careful more careful the most carefuluseful more useful the most useful少数单音节词也是这样，如：pleased more pleased the most pleasedtired more tired the most tiredb） 不规则变化：good/well bet