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1、八年级英语下册Unit 7 知识整理一、Section A 1形容词比较级和最高级：形容词,副词比较级的常用修饰词有:, a little, a bit, much, even, still, a lot, far等.三者或三者以上使用最高级：the+最高级+ of /in短语One of+the+最高级+名词复数 “最的之一”如：Shanghai is one of the biggest cities in the worlD.the +序数词（second,thirD.）+最高级“第几.”The Yellow River is the second longest river in Ch
2、ina.2succeed in doing sth 成功做某事success n.成功，不可数 successful, adj.成功的， successfully, 成功地3What s the population of +地点？Its . .地方的人口是多少？修饰population 用large /big 或者 smallpopulation前面有分数（three/fifths=3/5）或百分数修饰时，谓语动词用复数the population of China 中国的人口 4one of the oldest countries 最古老的国家之一 5feel free to do st
3、h. 随意地做某事 6as far as I know 据我所知 7as you can see 正如你所看见的, 8mountain climbing/ climbing mountains 登山运动 9freezing weather conditions 极冷的天气状况10higher than any other mountain 比其他任何一座山高 11challenge oneself 挑战自我 12run along 绵延，横亘 13表达事物的长，宽，高，深? sth./sB.+be+数量+单位+形容词long, wide, tall, deep 如：The river is 6
4、300 kilometers long.问事物的高，深，宽，长? How high/ deep/tall/ wide/ long/ is .?问重量用 How heavy be+sth,/sB.?14one of the worlds most dangerous sports 世界上最危险的运动之一 15one of the most popular places 最受欢迎的地方之一 16risk sbs lfe to do sth.冒着某人生命危险做某事take risks/ a risk to do sth.冒风险去做17in the face of difficulties 面临困难1
5、8take in air 呼吸空气 19the first people to do sth. 第一个做某事的人20achieve ones dream 实现某人的梦想= make ones dream come true 21the forces of nature 自然界的力量 22reach the top 到达顶峰 23even though 虽然;尽管24prepare to do sth.准备做某事prepare for sth.为做准备如: prepare for a testprepare sth.for sth/sB.为准备某物,25force sb to do sth 强迫
6、某人做谋事26send sb to do sth 派某人去做某事27give up doing sth.放弃做某事二、Section B 1 at birth在出生时2up to +数量词 达到 （某数量、程度等）；至多3live up to +.years活到岁4another 200 or so 还有大约200左右5次数，倍数表示法： 一次，一倍 once 两次 twice 三次及三次以上 基数词 + times6倍数表达法:A+谓语+倍数+adj./adv.(比较级）+than +B.Tom runs 3 times faster than Jack.A+谓语+倍数+as+adj./ad
7、v.(原级）+as+B.Tom runs 3 times as fast as Jack.7be awake 醒着的 awake是形容词，只作表语，不能作定语，类似的词还有afraid, asleep, alone, alive 等。8There be +sB.（sth.） +doing sth+地点.某处有某人或某物在做某事9sB.spend + time/ money + on sth./ in doing sth.某人花费时间/金钱做某事sB.pay +money +for sth.某人为某物支付多少钱It takes sb + time+ to do sth.花费某人多长时间做sth
8、+ cost +sb +money 某物花费某人多少钱。10protect sb from保护免于的伤害 如：protect children from catching a colD.保护孩子免于感冒11be in dangerr=be dangerous 处在危险中 be out of danger脱离危险12run over with excitement 兴奋地跑过去 13walk into sB. 撞着某人 14die from illness 死于疾病15fall over 被绊倒 fall down 跌倒，倒塌 fall off 从.上跌落16take care of 照顾;照料
9、 17every two years 每两年 18cut down the forests 砍伐森林19endangered animals 濒危动物 20fewer and fewer pandas 越来越少的大熊猫 21the importance of saving these animals 拯救这些动物的重要性 22wild animals野生动物 sea life海洋生物 23water pollution 水污染 24only live for a short time because of illnesses由于疾病仅活很短的时间25make more homes for the pandas为大熊猫建造更多的家园 26stop putting rubbish into the sea停止往大海里丢垃圾 27in the remaining forests在剩下的森林里28another 30 pandas=30 more pandas 另外30只熊猫 29do research 做研究30a symbol of .的象征4