人教版八年级下册英语Unit 7 知识点语法归纳总结
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1 Unit 7 What is the highest mountain in the world?
1. 短语归纳
① take in 吸入;吞入
② in the face of 面对(问题;困难)
③ at birth 出生时
④ as you can see 正如你所看到的
⑤ as far as I know 据我所知
⑥ up to 直到
⑦ prepare ...for...为...准备...
⑧ fall over 摔倒
⑨ die from 死于......
⑩ cut down 砍到
11 take care of 照顾;照看
12 or so 大约;左右
13 in danger 处于危险之中
2. 典句必背
① China has the biggest population in the world. 在世界上中国拥有最多的人口。
② Did you know that China is one of the oldest countries in the world?
你知道中国是世界上最古老的国家之一吗?
③ It’s much older than my country. 它比我的国家古老得多。
④ As you can see ,it's quite tall and wide. 正如你所看到的,它很高,而且很宽。
⑤ Even more serious difficulties include freezing weather conditions and heavy storms.
更严重的困难包括寒冷的天气条件和暴雨。
⑥ The first Chinese team did so in 1960, while the first woman to succeed was Junko Tabei from Japan in1975.
中国登山队在1960年第一次成功登顶,而在1975年来自日本的Junko Tabei成为第一个成功登顶的女人。
⑦ The babies often die from illnesses and do not live very long. 那些幼崽经常死于疾病,活不了太长时间。
⑧ Many years ago, there were a lot more bamboo forests and pandas in China, but then humans started to cut
down these forests.
许多年前,中国有更多的竹林和熊猫,但是后来人类开始砍伐这些竹林。
3. 用法集萃 2 (1) China has the biggest population in the world. 在世界上中国拥有最多的人口。
❖ population作名词,意为“人口;人口数量”。
表示“人口多”时要用big或large来修饰population;
表示“人口少”时要用small来修饰population。
例:Our country has a large population and abundant resources. 我国人口众多,资源丰富。
We have a growing population and therefore we need more food.
我们的人口数量在增长,因此我们需要更多的食物。
❖ 拓展 询问“某地有多少 人口”时,要用what,即“What’s the population of+地点?”。
注意该句式中的特殊疑问词不能用“how many或how much”。
例:—What’s the population of Hong Kong? 香港有多少人口?
—Sorry, I don’t know. Let’s ask Mr. Lee. 对不起,我不知道。我们问问李老师吧。
(2) Did you know that China is one of the oldest countries in the world?
你知道中国是世界上最古老的国家之一吗?
❖ “one of+the+形容词最高级+复数名词”意为“最...的...之一”
例:The Nile is one of the longest rivers in the world. 尼罗河是世界上最长的河流之一。
Miss Wang is one of the most popular teachers in our school.在我们学校,王老师是最受欢迎的老师之一。
(3) It’s much older than my country. 它比我的国家古老得多。
❖ much修饰形容词比较级,此时much表程度,可以翻译成“.....得多”。
例:My bed is much bigger than yours. 我的床比你的大得多。
❖ 注意 可以修饰比较级的词或短语有much、a little、still、 even、a bit等,此时这些修饰性的词或短语表程度。
例:You run much faster than he does. 你跑得比他快多了。 3 That sweater is even more expensive than this one. 那件毛衣比这件贵得多。
(4) As you can see, it’s quite tall and wide. 正如你所看到的,它很高,而且很宽。
❖ wide作形容词,意为“宽的;宽阔的”,wide还有“广泛的;范围大的”之意。
例:It must be very interesting to swim in the wide ocean. 在辽阔的海洋中游泳一定很有趣。
Robert has done many different things. He has wide experience.
罗伯特做过很多不同的事情,他有丰富的经验。
❖ 拓展 同根词
wide adj. 宽的;广泛的
widely adv. 广泛地
-th是名词后缀,如width n.宽度,depth(深度),length(长度)等
(5) Even more serious difficulties include freezing weather conditions and heavy storms.
更严重的困难包括寒冷的天气条件和暴雨。
❖ 辨析:include, including, included
include 用作及物动词,意为“包括;包含” Your duties will include putting the children to bed.
你的职责包括让孩子们上床睡觉。
including 用作介词,意为“包括....在内” Ten members were present at the meeting, including me.
10个成员出席了会议,包括我在内。
included 用在名词或代词后,意为“包括...在内” Everyone laughed, me included.
每个人都笑了,包括我在内。
(6) The first Chinese team did so in 1960, while the first woman to succeed was Junko Tabei from Japan
in1975.
中国登山队在1960年第一次成功登顶, 而在1975年来自日本的Junko Tabei成为第一个成功登顶的女人。 4 ❖ succeed 是动词,意为“成功”。succeed in( doing) sth.表示“成功做某事”。
例:Working hard is the only way to succeed in business. 努力工作是在事业上取得成功的唯一途径。
❖ 拓展 同根词
succeed v. 成功 success n.成功(不可数);成功的人/事(可数)
successful adj. 成功的(-ful是形容词后缀) successfully adv. 成功地(-ly是副词后缀)
(7) The babies often die from illnesses and do not live very long.
那些幼崽经常死于疾病,活不了太长时间。
❖ die from意为“死于”。
例:The old man died from/of colon cancer. 这位老人死于结肠癌。
❖ 辨析
die from 若死因不存在于人体之内或之上,
而是由环境造成的
(主要指事故等方面的外部原因),
一般用介词from。 die from an earthquake/a traffic accident/a lightning
死于地震/交通事故/雷击
die of 若死因存在于人体之上或之内
(主要指疾病、衰老等自身的原因),
一般用介词of。 die of illness/heart trouble/cancer/a fever
死于疾病/心脏病/癌症/发烧
注意 若死因是环境影响到体内,
即两方面共有的原因, die of/from a drink/a wound/overwork/starvation/hunger and cold
死于饮酒/受伤/劳累过度/饥饿/饥寒 5 则用of或from均可。 (但是在实际运用中,两者混用的情况较多。)
(8) Many years ago, there were a lot more bamboo forests and pandas in China, but then humans started
to cut down these forests.许多年前,中国有更多的竹林和熊猫,但是后来人类开始砍伐这些竹林。
❖ cut down 在此处意为“砍伐;砍倒”。cut down还可以表示“减少;缩短”。
例:They are cutting down the trees. 他们正在砍伐树木。
Seven trees have been cut down. 七棵树已经被砍倒了。
❖ 拓展“动词+down”的短语小结:
look down 向下看 cut down 砍伐 turn down关小;调低 lie down 躺下
pull down 拆毁 write down 写下 break down 出故障 put down 放下;写下
4. 语法聚焦
(1) 形容词、副词的比较级和最高级
英语中,在两者之间进行比较时,要用比较级;
在三者或三者以上的人或物之间进行比较时,要用最高级。
关于比较级和最高级的构成和句式如下:
① 比较级和最高级的构成
❖ 规则变化
最高级的变化规则 例词