Unit7.3第七单元专题7.3Grammar-八年级英语人教版(下册)

1、Unit 7 What's the highest mountain in the world?课时 3 Grammar(一)基数词基数耐(1)1 10 one, two, three, . ten-(2)11 20 eleven, twelve, thirteen, fourteen, . twenty(3) 21 99twenty-one, . ninety-nine（4）百位数 101one hundred and one注意百位与叶位间加 and(5)千位数以上从数字的右端往左数，每三位数加一个逗号"，"，从右开始第一个前面的数子加thousand,第一个逗

2、号前的数子加million ,第二个逗号前的数子加billion ,然后,干f分别表示。2,648 two thousand six hundred and forty-eight16, 250,164sixteen million two hundred and fifty thousand one hundred and sixty-four5,237,166,234five billion two hundred and thirty-seven million one hundred and sixty-sixthousand and two hundred and thirty-fo

3、ur表示"数以百计"用 hundreds of;"成千上万"用thousands of;"数百万"用 millions of ;"数十亿" 用billions of ,且它们前面不可加任何具体的数词。也就是说当hundred, thousand, million , billion前有具体的数词时，其后不能加-s;但当hundred, thousand, million , billion与of连用时，则用其复数形式，表 示不确定的数目，其前不能有具体的数词。There are hundreds of foreig

4、n students in their school.他们学校有数百名外国学生。Six hundred books were sent to the children.六百本书被邮寄给了孩子们。巧记 hundred, thousand, million 的用法：模糊数目两有（有 s,有of）,具体数目两无（无s,无of）。（二）形容词、副词的比较等级（形容词和副词的比较级与最高级的变化规则（1）规则变化情况规则例词一般情况直接力口 -es / -esttall 一 taller - tallest以不发音的字母e结尾的词力口 -r / -stnicef nicerf nicest以"

5、辅音字母+y”结尾的词变y为i,再加-er / -estdry fdrierfdriestheavyf heavierf heaviest以一个辅音字母结尾的词先双与辅首字母，再加-er /-estthin f thinner f thinnest多音节和部分双音节单词在词前力口 more / mostdelicious f more delicious - most delicious(2)不规则变化原级比较级最高级good, wellbetterbestbad, illworseworstmany, muchmoremostlittlelessleastfarfarther/further

6、farthest/furthest2.形容词/副词原级的用法(1)用于"as.as."结构中，否定形式为not as/soas。This picture is not so good as that one. 这幅画不如那幅好。的射Li Hua 's shoes are as as Zhang Hui's.A.cheapB.cheaperC. the cheapest【答案】A解析】本题用固定句式法口固定句式处一形容词或副词摩级一格表示"和一样”。(2)表示“A是B的倍”时，用 A +谓语动词+倍数+ as+原级+ as B。Our school

7、is twice as large as theirs.我们学校是他们学校的两倍大。(3)修饰形容词原级的词:very,too, so, enough 等。The girl is so beautiful.这个女孩是如此的漂亮。3.形容词/副词比较级的用法(1) A +谓语动词+比较级+ than B. A比BMy bike is more beautiful than hers. 我的自行车比她的好看。曲射Peter is 15 years old. He is than his father.A. tallB. tallerC. tallestD. the tallest【答案】B【解析】

8、本题用寻找题眼法。由句中的than可知本空应用形容词的比较级形式。(2) Which/Who +谓语动词+比较级，A or B?Who runs faster, Jim or Tom?谁跑得更快，吉姆还是汤姆？ Which season do you like in Panzhihua, the dry season or rainy season? The rainy season.A. wellB. betterC. bestD. the best【答案】B1解析】本题用语:扭M定法,问句句意:你比校喜欢攀枝找的城峰季节，旱季还是雨季？两者之间比较, 应用比较孤形式，(3)表示"

9、越来越"时用比较级的重叠结构，即“比较级+ and+比较级”，多音节词和部分双音节词用" more and more +原级”。It's becoming colder and colder. 天气变得越来越冷了。The problem is becoming more and more serious. 问题变得越来越严重了。-Roy never likes junk food.-Neither do I. That s probably why I m becoming now.A. healthy and weakB. healthier and health

10、ierC. weaker and weakerD. more and more healthily【答案】B解折本题用固定短语法口 healthy健康的,weak虚弱孙由语境可知那可肓僦是为什么我现在变得越来 越健康(的原因了“比较级十迎1+比较镀"造构表示"越来越” Q(4)表示“越就越"时用"the+比较级，the+比较级”。The more careful you are, the fewer mistakes you will make. 你越细心，犯的错就会越少。The earlier kids learn to be independent,

11、 the it is for their future.A. goodB. wellC. betterD. best【答案】C【解析】本题用固定句式法。句意：孩子们越早学会独立，对他们的未来就越好。固定句式the +比较级.,the +比较级.表示“越，就越"o(5)表示"两者之间比较的一个“时常用"the+比较级+ ofthe two "。He is the thinner of the two.他是两个中较瘦的那一个。B.cheaperD. most expensiveOf the two shirts, I 'd like to choos

12、e the one to save some money for a cap.A.cheapestC. more expensive【答案】B【解析】根据句中uOf the two shirts "可知本句是两者之间的比较，应用比较级。句意”两件衬衫中，我想要选较便宜的那件，省下来的钱买一顶帽子。"(6)修饰比较级的词和短语有a little , a bit, a lot, much, far, even等。You are a little thinner than Jim.你比吉姆瘦点儿。The box was than I had expected. I was out

13、 of breath when I got home.A. more heavierB. much heavierC. little heavierD. very heavier【答案】B【解析】句意：这个男孩比我期望的要重一些，我到家时上气不接下气口所给的选项中只有much可以修饰 比较缓，故选4.形容词/副词最高级用法(1)三者或三者以上比较用最高级，形容词最高级前加the,副词可不加。句末常跟in/of短语表示范围。Tom is the cleverest in his class.汤姆是他班里最聪明的。He runs fastest in the class.在这个班里他跑得最快。声忸

14、-Lily has two sisters, doesn't she? Yes. She's taller and older than her two sisters, but she's not one of the three.A. the tallestB. youngestC. shortestD. the cleverest【答案】D【解析】本题用寻找题眼法。由句中 of the three可知本空应用形容词的最高级形式。形容词的最高级形式 通常在前面加the,首先可排除B、C两项；由“她比她的两个姐妹高且年长”可知她是三个人当中最高的， 又可排除A项，故选

15、D。(2) Which/Who +谓语动词+ the+形容词/副词最高级，A, B or C?Who is the tallest, Tom, Kate or Bill? 谁是最高的，汤姆、凯特还是比尔？ Which city is beautiful, Hangzhou, Beijing or Shanghai?B. the betterC. more Hangzhou, I think.A. the most【答案】A【解析】本题用语法判定法。由问句可知是在三个城市之间比较，知要用最高级形式。故选Ao(3)表示“最的之一"时用one of+the+形容词最高级+复数名词。Miss

16、 Xu is one of the most popular teachers in our school. 徐老师是我们学校最受欢迎的老师之一。This temple is one of buildings in the town. We must take action to protect it.A. oldB. olderC. oldestD. the oldest【答案】DL解折】本题用固定短语法口句意：这座庙宇在这个城镇上是最古老的建筑之一，我(1出须采取行动去保 护它q +th? +形容词最高蛆+名词复数意为,?最之一" Q(4)表示"第几最"时，可

17、在最高级前加序数词。The Yellow River is the second longest river in China. 黄河是中国的第二长河。【注意】有些形容词，如dead, empty, round, sure, woolen等受本身含义的限制，没有比较级。,YK好题)I.用所给词的适当形式填空1. This building is(high) than that one.2. Changjiang is one of the(long)rivers in the world.3. Miss Brown is(thin) than her sister.4. This river

18、is(wide) than that one.5. Who runs(fast), Tim, Adam or Mary?6. New York is a(noisy) city than Washington D. C.7. This blue coat(expensive) coat in the cloth store.8. This new story is(interest) than that one.9. I think swimming is(dangerous) than running.10. I can't follow you. Can you speak(slo

19、w)?11. Miss Li is the(popular) teacher of all.13. He sings English songs(well) than me.14. What's the(deep) sea in the world?15. Which is(long), this ruler or that one?16. The red box is the(heavy) of the five.17. Qomolangma is the(tall) mountain in the world.n.根据汉语意思完成句子，每空一词1 .对于老年人来说学习英语更困难。I

20、t's for old people English.2 .老师讲得慢，因此我能听得很清楚。The teacher speaks,I can hear.3 .汤姆是我们班上第二大的学生roTom is student in our class.4 .玛丽比她姐姐的语文学得好。Mary is Chinese than her sister.5 .东方航空公司是最繁忙的国际航线之一。China Easter Airline isinternational airlines.m.按要求完成句子1. I'm taller than Jim.(改为同义句)Jim is me.2. The

21、 Caspian Sea is the deepest salt lake in the world.(改为同义句 )The Caspian Sea is than salt lake in the world.3. My hometown is bigger than Xuzhou.(改为一般疑问句) your hometown than Xuzhou?4. Betty is ten years old. David is twelve years old.（ 改为同义句 ）David is two yearsBetty.5. This question is easier than tha

22、t one.（改为否定句 ）This questionthan that one.IV.单项选择1. （2018 广东）According to a survey, four out of five women do housework at home, but onlyof menwould do it.A. four fifthB. four fifthsC. two fifthD. two fifths2. （2018 .湖北黄冈）一Dad, aboutof our classmates wear glasses.B. third fourth-Oh, that's terrib

23、le. You all should take good care of your eyes.C. third fourthsA. three fourthD. three quarters3. （2018 湖北咸宁）一Nowadays China has about 25,000 kilometers of high-speed railways.一That ' sof the worlds total.A. two thirdB. two-thirdC. two thirdsD. two three4. （2018 湖南湘西）Excuse me, Mary. Can you rea

24、d“198” in English? Yes, of course.A. One hundred ninety-eightB. One hundred nine eightC. One hundred and ninety-eight5. （2018 湖南岳阳）Everyone knows that China is gettingA. strong and strongB. strongest and strongestC. stronger and stronger6. （2018 河南）Why don ' t you get yourself a job?一That '

25、ssaid than done.A. easyB. easierC. the easierD. the easiest7. （2018 湖南湘潭）一Mum, I ' d like a cup of coffee.than coffee.一Dear, why not drink some water? ItA. healthyB. healthierC. the healthiest8. （2018 上海）The bridge between the two islands is one in Shanghai.A. longB. longerC. longestD. the longe

26、st9. （2018 广西贵港）一What sports do you like ?-Basketball. I think it' s very relaxing.A. goodB. wellC. betterD. best10. （2018 贵州黔南）you practice,you will be at math.A. The more; the betterC. The more; the bestC. The most; the betterD. The most; the best11. （2018 四川泸州 ）We are happy to see our city is

27、 developing these years than before.A. quicklyB. more quicklyC. very quicklyD. the most quickly12. （2017 安徽） What do you think of the movie? Great! I have never seen a one.A. goodB. badC. betterD. worse13. （ 2017 海南） people watched the rocket flying up into the sky.A. ThousandB. ThousandsC. Thousand

28、s of14. （2017 北胡d匕宜昌） The living conditions in the countryside have improved greatly in recent years.-The farmers are living a much life than before.A. happyB.happierC. happilyD.happiest15. （2017 -江苏苏州）You are speaking too fast. Can you speak a little?A. more slowlyB.most slowlyC. more loudlyD.most

29、loudly16. （2017 江苏宿迁）Daniel is his twin brother. They are both 1.75 metres tall.D. so tall asA. taller thanB. shorter thanC. as tall asV.完形填空Bike-sharing is a new choice for short journeys in cities. It is good to the 1development of the big cities.A 2 by a company found that shared bikes started th

30、e nation 3for bikessagain. Now more andmore Chinese people are 4 bikes instead of cars to make short journeys in cities.An engineer of that company says that since the 5 of shared bike s, people have made fewer trips by car. The love for shared bikes is not only among 6 people, who were born in the

31、1980s and 1990s, but also among people over sixty.At weekends, the number of the riders in Shenzhen reaches the 7 of all cities. On weekdays, the number of people who use shared bikes to travel to work is 8 in Shanghai.It is said that bike-sharing will help 9 the cities ' environment. It not onl

32、y helpsesthle traffic problems, but also will help to make more use of 10 in cities. Take Beijing as an example if more people choose shared bikes, an area of five Bird' s Ne钵stOdiumsl （be saved.1. A. slowB. healthyC. harmfulD.sudden2. A. ruleB. planC. reportD. suggestion3. A. searchB. worryC. p

33、reparationD. love4. A. choosingB. pushingC. repairingD. locking5. A. endB. startC. controlD. fall6. A. strongB. weakC. oldD.young7. A. topB. sideC. cornerD. line8. A. coming overB. putting offC. going upD. giving away9. A. discoverB. separateC. experienceD. improve10. A. airB. timeC.spaceD. moneyVI.

34、短文填空请阅读下面短文，根据其内容，用方框中所给单词的适当形式填空。（每个单词限用一次）storms; lives; rises; mountain; top; freezing; tourists; dangerous; areAlaska Range（阿拉斯力口山脉 ）is famous for its valleys and glaciers（ 冰川）.It has many thick forests and big glaciers which are over millions of years old. It has more than a million 1 from all

35、over the world. It is also one of the most 2 places on the earth.Of all the peaks, Mount McKinley 3 the highest. It ' one of the most popular places to go formountain climbing. It ' s very difficult to cemuse the 4 of the mountain is covered by thick snowall year round, and there are many ot

36、her difficulties like the 5 weather conditions, avalanches（雪崩）, the heavy 6 and so on.For these climbers it is an extremely dangerous climbing, many people have lost their 7 on thismountain. However, the mountain climbers have never given up climbing it, and they enjoy the great challenges inclimbin

37、g the mountain.I.用所给词的适当形式填空1.higher 2.longest7.is the most expensive10. more slowly14. longern.根据汉语意思完成句子,1 .more difficult ; to learn4.better atm.按要求完成句子1.shorter than4.older than3.thinner 4.wider8.more interesting11. most popular15. heaviest每空一词2.slowly ; so; clearly5.one of the busiest2.deeper;

38、any other5.isn ' t easier5.fastest6.noisier9.more dangerous12. tourists13. better16. tallest3.the second oldest3.Is; biggerIV.单项选择1. D I解析】考查数词之分数表达-句意：根据一项调查、五分之四的妇女在家曲家芬：但是只有五分之 二的男士做这项工作.分数的表达方式，分子用基数词.而分母则需要用序数词，当分子大于一时, 则分母序数词后需要加“故选2. D【解析】考查分数表达。在英语中，分子使用基数词，分母使用序数词，当分子大于或等于二时，分母用复数形式。由此排

39、除 A、B、C选项。quarter为四分之一，three quarters为3/4。故选D。3. C 【解析】考查分数表达法。句意：一一现在中国有大约25,000千米的高速铁路。 一一占世界（高铁）总长度的三分之二。分数表达法：分子用基数词，分母用序数次，分子大于1时，分母用复数。故选Co4. C 【解析】考查数字辨析。句意：一一劳驾，玛丽。你会用英语读 “198吗？一一是的，当然了。 分析数字可知：百位数和十位数之间要加and。故选Co5. C 【解析】考查形容词比较等级。句意：人们都知道中国变得越来越强大。比较级 +比较级，意为 越来越”，为固定句型，故可知选 Co6. B 【解析】考查形

40、容词的比较级。句意:你为什么不找份工作呢？一一说起来容易做起来难。有标志词than,句子应用比较级，故选 B。ZB【解析1考查形容词比较圾的用法.一句意；妈妈，我想要一杯惮非口亲爱的，为什么不喝些 水呢？它比咖啡更便康。than是比去搬的标志词，故答案为hWthier。S D【解析】考查形容词的用法.句意：这两座岛屿之间的桥梁是上海最长的一座.根据句意可知此处用 形容词最韶瓦且最高吸前面有冠词由已修饰+9. D 【解析】考查副词最高级用法。句意： 你最喜欢什么运动？ 篮球。我认为它非常有趣。Good 形容词 好”；well副词 好”；而better表示 较好"；best最好”。根据上

41、下文语境故选 D。10. A【解析】考查比较级。句意：你练习得越多，你的数学将会越好。The +比较级，the+比较级，表示 越， 越”。故选A。11. B【解析】考查副词比较级。句意：我们很高兴看到我们的城市比以前发展得更快了。根据than before可知，应用副词比较级。故选 B。12. C【解析】句意：“你认为这部电影怎么样？”“非常棒！我从来没有看过比这更好的了。”比较级用于否定句，往往表示最高级含义。根据 Great!可知这部电影是看过的最好的电影，故选C。13. C【解析】句意：成千上万的人观看火箭升上天空。Thousand千，前面要用具体数字，表示明确数,Thousands不能

42、单独使用，后面要跟of+名词复数，表示概数，故选C。14. B【解析】句意：一近几年来，农村的生活条件大有改善。一农民们过着比以往更为幸福的生活。由第二句后面的than before知道，空白处应该填一个比较级的形式。A.happy,幸福的，是原形；C. happily,幸福地，是副词原形；D. happiest,最幸福的，是最高级。故选B。15. A【解析】句意：你说的太快了。你能说慢一点吗？根据speaking too fast.所以是让对方说慢点，slowly慢的；loudly大声的。a little修饰比较级， A. more slowly 比较级；B. most slowly 最高级。故选 A。16. C【解析】句意：丹尼尔和他的挛生兄弟一样高。他们都 1.75米高。本题虽然是考查形容词的比较级，但是由They are both 1.75 metres tall可知，参与对比的两人是相同的身高，故选 C。VI.完形填空【文章大意】这篇短文主要介绍了新兴事物一共享单车。共享单车的出现有助于城市