![八年级下学期复习指南(人教版)基础篇Unit 7单元重点知识第1页](http://img-preview.51jiaoxi.com/2/4/13517606/0/0.jpg?x-oss-process=image/resize,w_794,m_lfit,g_center/sharpen,100)
![八年级下学期复习指南(人教版)基础篇Unit 7单元重点知识第2页](http://img-preview.51jiaoxi.com/2/4/13517606/0/1.jpg?x-oss-process=image/resize,w_794,m_lfit,g_center/sharpen,100)
![八年级下学期复习指南(人教版)基础篇Unit 7单元重点知识第3页](http://img-preview.51jiaoxi.com/2/4/13517606/0/2.jpg?x-oss-process=image/resize,w_794,m_lfit,g_center/sharpen,100)
八年级下学期复习指南(人教版)基础篇Unit 7单元重点知识
展开八年级下学期复习指南(人教版)基础篇>>UNIT 7重点单词square n.平方;正方形 meter n.米;公尺deep adj.深的;纵深的 desert n.沙漠population n.人口;人口数量 Asia n.亚洲tour n.& v.旅行;旅游 tourist n.旅行者;观光者 wall n.墙 ancient adj.古代的;古老的 protect v.保护;防护 wide adj.宽的;宽阔的achievement n.成就;成绩 thick adj.厚的;浓的 include v.包括;包含 condition n.条件;状况 succeed v.实现目标;成功 achieve v.达到;完成;成功force n.力;力量 nature n.自然界;大自然ocean n.大海;海洋 man-made adj.人造的amazing adj.令人大为惊奇的;令人惊喜(或惊叹)的southwestern adj.西南的;西南方向的 bamboo n.竹子freezing adj.极冷的;冰冻的 birth n.出生;诞生challenge v.& n.挑战;考验 weigh v.重量是……;称……的重量adult adj.成年的;成人的n.成人;成年动物research n.& v.研究;调查 keeper n.饲养员;保管人awake adj.醒着 excitement n.激动;兴奋illness n.疾病;病 wild adj.野生的government n.政府;内阁 oil n.油;食用油;石油protection n.保护;保卫 huge adj.巨大的;极多的cm厘米 endangered adj.濒危的whale n.鲸重点短语feel free(可以)随便(做某事) as far as I know就我所知take in 吸入;吞入(体内) in the face of 面对(问题、困难等)even though (=even if) 即使;虽然 the Pacific Ocean太平洋at birth出生时 walk into 走路时撞着up to到达(某数量、程度等);至多有;不多于fall over 绊倒 or so 大约重点句型1.—What's the highest mountain in the world? 世界上最高的山是什么山?—Qomolangma.珠穆朗玛峰。2.—How high is Qomolangma? 珠穆朗玛峰多高?—It's 8,844.43 meters high. It's higher than any other mountain.它高达8 844.43米。它比其他任何一座山都高。3.—Which is the deepest salt lake in the world? 世界上最深的咸水湖是哪一个?—The Caspian Sea is the deepest of all the salt lakes.里海是所有咸水湖中最深的。4.China is almost as big as the US,and it is the biggest country in Asia.中国几乎和美国一样大,是亚洲最大的国家。5.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?6.This elephant weighs many times more than this panda.这头大象比这只大熊猫重很多倍。7.Scientists say there are now fewer than 2,000 pandas living in the forests.科学家们说如今生活在森林里的大熊猫不足2 000只。8.The babies often die from illnesses and do not live very long.这些大熊猫幼崽经常死于疾病并且活不了多长时间。单元重点语法一、形容词、副词的比较级和最高级1.概述:英语中的形容词和副词有三个等级,即原级、比较级和最高级。比较级主要用于两者之间作比较,最高级主要用于三者或三者以上进行比较。2.比较等级的构成:(1)规则变化①一般在词尾直接加-er或-est,如:tall—taller—tallest,long—longer—longest②以不发音的字母e结尾的单词在词尾直接加-r或-st,如,nice—nicer—nicest③以“辅音字母+y结尾”的词,把y变为i,再加-er或-est,如,heavy—heavier—heaviest④重读闭音节,末尾只有一个辅音字母,先双写这个辅音字母,再加er或-est,如:big—bigger—biggest⑤部分双音节词和多音节词分别在原级前加more构成比较级和most构成最高级,如:slowly—more slowly—most slowly;beautiful—more beautiful—most beautiful比较等级的变化口诀比较等级要变化,一般词尾加-er(-est)。词尾若有哑音e,直接加-r(-st)就可以。一辅重读闭音节,辅音字母要双写。辅音字母加y结尾,要把y改i加-er(-est)。(2)不规则变化原级比较级最高级good/ well better best bad/ ill worse worst many/ much more most little less least old older(新旧或年龄)/elder(兄弟姐妹的长幼关系)oldest/eldest far farther(表示距离,译为“更远”)/further(表示程度,译为“进一步的”)farthest/furthest不规则变化口诀:合二为一共三对:“坏(bad)、病(ill)”“两多(many, much)”并“两好(good, well)”;一分为二有两个,一是“远(far)”来二是“老(old)”;只有一词含双义,只记“少(little)”来不记“小”。3.使用比较等级应注意的几点:(1)使用比较等级的基本原则:不作比较用原级,两者比较用比较级,多者比较用最高级。例句:He is very tall.他很高。(尽管“很高”,但没有比较,故用原级)He is very short,but taller than me.他很矮,但比我高。Among the three girls,Mary is the tallest.在这三个女孩中,玛丽是最高的。(2)在形容词最高级前通常用the,在副词最高级前可用the,也可省略。例句:This is the best room in the hotel.这是这家宾馆里最好的房间。Among them,he studies (the) hardest.在他们当中,他学习最刻苦。(3)比较级前常用的修饰语有far,even,a lot,a bit,much等。例句:Japanese is much more difficult than English.日语比英语难多了。二、英语中四位及四位以上数的表达与朗读1000以上的基数词的表示法:先从右至左数,每三位数加一个逗点(即以此把数目分为若干段)。第一个逗点前的数为thousand(千),第二个逗点前的数为million(百万),第三人逗点前的数为billion(十亿)。9,883nine thousand,eight hundred and eighty three65,359sixtyfive thousand,three hundred and fiftynine265,468two hundred and sixtyfive thousand,four hundred and sixtyeight60,263,150sixty million,two hundred and sixtythree thousand,one hundred and fifty1.英语没有“万”这个单位,要表示“万”须借用thousand,如“一万”用“十个千(ten thousand)”表示,“十万”用“百个千(one hundred thousand)”表示。2.在hundred后通常加上连词and。若读数中没有hundred,则在thousand后加and。
![英语朗读宝](http://img.51jiaoxi.com/images/b63752f392f2249a4363e2d9daf1f335.png)