2017年人教版初中英语八年级英语下册全套课本同步重难点精讲Unit7

2017年人教版初中英语八年级英语全套课本同步重难点精讲

Unit 7 What’s the highest mountain in the world?

课文重难点讲解

Section A

1. about 9,600 ,000 square kilometers in size. 大小约9,6000,0000平方公里。

【解析1】square ⑴adj. “平方米” , 用于数字后表面积。

an area of 95 square meters 95平方米的面积

⑵ n , 正方形;广场

Many old people like dancing on the square after supper. 【解析2】in size = have /has an area of... (面积)大小 2. 1,025 meters deep 深1,025米 【解析1】1,025 meters “深1,025米”

【注】在英语中,表示事物的长、宽、高、深等时,主要有两种表达方式: 结构1:“基数词 + 单位名词+ 形容词(long,wide,tall, deep等)”。 如果数词超过1,单位名词要用复数形式。 【注】单位词有: meter; foot; inch; kilogram 等 Yao Ming is over 2 meters tall. The river is 50 meters wide.

“基数词+ 单位名词+ in + 名词(length; width; height; depth等) two meters long = two meters in length 2米长 three feet high = two feet in height. 3英尺高 结构2: 长、宽、高、深还可用复合形容词表示

“数字+ 量词(单位)+形容词(long/ wide/ tall/ deep等)” . 各个词间用连字符连接,常作前置定语修饰名词。 Jeremy Shu-How Lin is a 1.91-meter-tall- basketball player. 【解析2】deep adj. 深的 take a deep breath.深深呼吸 【拓展】 adj → n

deep → depth long → length high→ height wide →width

3. Qomolangma is ___ than any other mountain in the world. 珠穆朗玛峰比世界上任何山都____.

【解析】 “any other +可数名词的单数” 任何其他的

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【用法1】any other “其他任何一个” ,后接可数名词单数,

[指在同一范围内除了某人或某物以外的其他任何人或物] 通常用于比较级,多用于同一范围内相比较。 Shanghai is bigger than any other city in China. 【用法2】 “any other +可数名词单数” 可与 “the other + 可数名词复”

互换,也可用最高级形式表达。

Lucy is more careful than any other student in her class. (any other + 可数名词单数)

=Lucy is more careful than the other students in her class. (the other + 名词复数)

= Lucy is the most careful student in her class. 4. It’s a lot bigger than the population of the US. (中国)人口比美国多对多。

【解析1】a lot … ……..得多;很多;非常

【辨析】(1) a lot 很多,做副词短语,修饰动词,放在动词之后。

相当于very much.

It usually rains a lot at this time of year. (2)a lot of = lots of + 复数名词

=many +复数名词=much+ 不可数名词

【解析2】 population 人口;人口数量

①population常与定冠词the连用,做主语且强度整体人口时,

谓语动词一般用单数,

The population is increasing faster and faster.

②当主语时“人口的百分之几、几分之几”时,谓语动词常用复数形式。 Three quarters of the population are workers.

③ 表示人口的\\\多\\\或\\\少\\\时, 用\或\The population of China is very large. 中国人口众多

( ) The population of the town is much ___ than that of your town. A. less B. fewer C. smaller

④ 询问某国、某地有多少人口时, 用\\\

How large is the population of your hometown? 你们家乡有多少人口? 提问有多少人口,常用“ what is the population of …?” What is the population of Canada? 加拿大的人口有多少? ⑤表示 “某地有多少人口” 时,常用

1)The population of +某地+be+数词(该句型中population前用冠词the。)

2)某地+has a population of +数词+(people)(该句型中population前用冠词a。) 例如:

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The population of China is about 1.3 billion.

=China has a population of about 1.3 billion.中国大约有13亿人口。 5. It has a much longer history than the US. (中国)比美国历史长得多。 【解析】much ……得多 (修饰比较级)

类似的词还有:even “更......” , a lot “很多;......得多” a little “比......一点”

My classroom is a little bigger than yours.

6. The US is not even years old. 美国的历史甚至不到____ 年。 【解析】even 甚至 (用在比较级前,表示程度) 【2012山东济宁】In the talent show, I performed well and Ann did even _B__. A. well B .better C. more D. worse 7. Feel free to ask me anything on today’s Great Wall tour. 针对今天的长城之旅,大家可以自由提问我任何问题。

【解析】 tour n 旅行 → tourist n 旅游者→ touristy adj. 游客很多的.

tour guide 导游

My brother wants to be a __________(tourist) guide.

travel v 旅行 → traveller n 旅游者→ travelling adj. 旅行的 travel to … 到……旅行

travel all over the world. 周游世界

【辨析】tour/ trip/ travel/ journey 词语 用法 一般指长途旅行,到国外或远方旅行。travel 还可作动词 travel “旅行,周游,观光” .一般团队都是tour tour 一般指短距离旅行,直达目的地的旅行 trip 有时并不指真正意义的“旅行”, 而只是表示走过一段距离。 journey 【记】 观光游玩用tour ,长途陆路用journey, 短途短期用trip, travel 用法最普遍,特别用于指“游记”

8. How long is the wall? 长城有多长? 【解析】how long 多长;多久 ⑴ 对长度提问

— How long is the table? — About 1.2 meters.

⑵ 对时间提问,常用for或since引导的时间状语来回答。

— How long does it take you to do your homework in the evening? — For two hours.

9.The main reason was to protect their part of the country. 主要的原因是保卫自己的国家。

【解析】 protect v “保护” We should protect children.

protect sb./ sth from 保护某人/ 某物使其不受…… Protect your eyes from the sun. 不要让阳光伤害你的眼睛。

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