资源简介 (共19张PPT)Unit 4 The Wonders of Nature八年级人教版2024下语法+写作解析一、语法解析数词(一)定义数词是表示数目多少或顺序先后的词,也可以说数词就是数量的名词。Eg:There are two books.有两本书。数词也经常表示大约的数量,这种约数是在具体数量的基础上,上下浮动。Eg: It is about seventy meters.它大约七十米。(二)分类:基数词和序数词1.基数词:表示数目的词。Eg: Six boys are playing in the park.六个男孩正在公园玩。2.序数词:表示顺序的先后。Eg: This is the first bus.这是第一辆公共汽车。3.基数词变序数词规则:一,二,三,单独记;结尾字母t,d,d;th从四起,八去t,九除e, ve要用f替;整十基数变序数,先把ty变成tie;要是遇到几十几,前用基来后用序。Eg: one -- first; two -- second;three -- third; four -- fourth;five -- fifth; eight --eighth;nine -- ninth; twenty -- twentieth;twenty-five--twenty-fifth(三)功能1.数词相当于名词时,在名词短语中担任中心词,即在句子中作主语,表语和宾语等。Eg:Two twos are four.二二得四。(作主语)Five times four is twenty.5乘4等于20.(作表语)The coat is worth two hundred.这件衣服值200元。(作宾语)2.数词相当于形容词时,在句子中作定语。Eg: The first student arrived at school at 7:00.第一名学生七点到校。(作定语)(四)基数词1.基数词1--12都有各自具有的特殊形式。one, two, three, four, five, six, seven, eight, nine, ten, eleven, twelve2.基数词13--19都以-teen结尾。thirteen,fourteen,fifteen, sixteen, seventeen, eighteen, nineteen.3.20--90的整十位基数词都以-ty结尾。twenty, thirty, forty, fifty, sixty, seventy, eighty,ninety4.21-99之间的基数词除整数十位之外,其余都是在整十位数后加上从1-9的基数词,且中间有连字符。Eg:twenty-five;thirty-six等5.百位数字的表达法:"基数词+hundred+and+整十位数词+连字符+个位数"Eg:256 two hundred and fifty - six305three hundred and five660 six hundred and sixty6.英语中数词单位有:hundred百;thousand千;million百万;billion十亿。英语中每三位数为一个隔断,从右到左分别为thousand, million,billion...在表达时可每三位数字后加数词单位即可。Eg: 1,234 one thousand two hundred and thirty-four26,456,321twenty-six million fourhundred and fifty - six thousand three hundred and twenty-one1,265,324,688 one billion two hundred and sixty-five million three hundredand twenty-four thousand six hundred and eighty-eight注意:1)表示不确定数目时,要在 hundred,thousand,million,billion后加-s和 of连用,表示成百,成千上万的意思。2)这几个词在一个确定的数字后表确切的数目时不能接of,且不可用复数形式。Eg:millions of 数百万的;two billion二十亿7.基数词用法:常用来表示物或人的数量,当基数词大于1时,后跟的可数名词需用复数形式,不可数名词的量词也需要用复数形式。Eg:two oranges两个桔子;two pieces of bread两片面包形容词,副词最高级用法1.表三者或三者以上的人或物进行比较时,用最高级形式。注意:形容词最高级前必须加定冠词the,副词最高级前可不加。Eg: He is the tallest boy in my class.他是我班最高的男生。He runs fastest in my class.他在我班跑得最快。2.最高级常见结构:1)A+动词+the+形容词/副词最高级+ of/in/among+比较范围Eg: He is the tallest of the three boys.他是三个男生中最高的。2)A+be +one of+the+形容词最高级+名词复数;译为"A是...中最...之一"Eg: China is one of the strongest countries.中国是最富强的国家之一。3)表示三者或三者以上的人或物中进行选择时,用句型:Which/Who+动词+the+最高级,A,B or C Eg:Which city isthe most beautiful, Beijing, Shanghai or Fuzhou 哪个城市最漂亮,北京,上海还是福州 4)A+be+the+序数词+形容词最高级+名词单数+范围;译为"第几个最..."Eg: She is the second tallest girl in our class.她是我们班第二高的女孩。5)形容词最高级前面可以用形容词性物主代词,指示代词,名词所有格等修饰,但不能加定冠词the.Eg:Lucy is my best friend.露西是我最好的朋友。二、写作解析本单元写作主题为介绍"自然奇观"(一)常用句型1.Oinghai Lake is a ...in...青海湖是在...里的一个...2.Qinghai Lake is ... in China.青海湖位于中国...3.It is...in size.它有...大小。4.If you visit Qinghai Lake, you can ...如果你参观青海湖,你可以...5.Don't miss this natural wonder!不要错过这个自然奇观!(二)写作思路1.What: a salt lake2.Where:Qinghai Province,China3.Special fact: the largest lake in China(4,340 km2)4.Things to do: photograph wildlife (fish and birds), visit islands, ride a bike or horse(三)范文Discover Qinghai Lake:Qinghai Lake, a Gem in the Heart of China! It is located in Qinghai Province. Qinghai Lake is a breathtaking salt lake and the largest lake in China, it is about 4,340 square kilometres. Its crystal - clear waters reflect the vast sky, while surrounding islands and diverse wildlife create a magical scene. Cycle or ride a horse along the shore, or simply soak in the peaceful beauty. It is a place to escape, connect with nature, and make memories that will last a lifetime. Don't miss this natural wonder!Thanks!21世纪教育网(www.21cnjy.com)中小学教育资源网站有大量高质量资料?一线教师?一线教研员?欢迎加入21世纪教育网教师合作团队!!月薪过万不是梦!!详情请看:https://www.21cnjy.com/help/help_extract.php/ 让教学更有效 英语学科Unit 4 The Wonders of Nature 语法+写作解析一、语法解析数词(一)定义数词是表示数目多少或顺序先后的词,也可以说数词就是数量的名词。Eg:There are two books.有两本书。数词也经常表示大约的数量,这种约数是在具体数量的基础上,上下浮动。Eg: It is about seventy meters.它大约七十米。(二)分类:基数词和序数词1.基数词:表示数目的词。Eg: Six boys are playing in the park.六个男孩正在公园玩。2.序数词:表示顺序的先后。Eg: This is the first bus.这是第一辆公共汽车。3.基数词变序数词规则:一,二,三,单独记;结尾字母t,d,d;th从四起,八去t,九除e, ve要用f替;整十基数变序数,先把ty变成tie;要是遇到几十几,前用基来后用序。Eg: one -- first; two -- second;three -- third; four -- fourth;five -- fifth; eight --eighth;nine -- ninth; twenty -- twentieth;twenty-five--twenty-fifth(三)功能1.数词相当于名词时,在名词短语中担任中心词,即在句子中作主语,表语和宾语等。Eg:Two twos are four.二二得四。 (作主语)Five times four is twenty.5乘4等于20. (作表语)The coat is worth two hundred.这件衣服值200元。(作宾语)2.数词相当于形容词时,在句子中作定语。Eg: The first student arrived at school at 7:00.第一名学生七点到校。(作定语)(四)基数词1.基数词1--12都有各自具有的特殊形式。one, two, three, four, five, six, seven, eight, nine, ten, eleven, twelve2.基数词13--19都以-teen结尾。thirteen, fourteen, fifteen, sixteen, seventeen, eighteen, nineteen.3.20--90的整十位基数词都以-ty结尾。twenty, thirty, forty, fifty, sixty, seventy, eighty,ninety4.21-99之间的基数词除整数十位之外,其余都是在整十位数后加上从1-9的基数词,且中间有连字符。Eg:twenty-five;thirty-six等5.百位数字的表达法:"基数词+hundred+and+整十位数词+连字符+个位数"Eg:256 two hundred and fifty - six305 three hundred and five660 six hundred and sixty6.英语中数词单位有:hundred百;thousand千;million百万;billion十亿。英语中每三位数为一个隔断,从右到左分别为 thousand, million,billion...在表达时可每三位数字后加数词单位即可。Eg: 1,234 one thousand two hundred and thirty-four26,456,321 twenty-six million four hundred and fifty - six thousand three hundred and twenty-one1,265,324,688 one billion two hundred and sixty-five million three hundred and twenty-four thousand six hundred and eighty-eight注意:1)表示不确定数目时,要在 hundred,thousand,million,billion后加-s和 of连用,表示成百,成千上万的意思。2)这几个词在一个确定的数字后表确切的数目时不能接of,且不可用复数形式。Eg:millions of 数百万的; two billion 二十亿7.基数词用法:常用来表示物或人的数量,当基数词大于1时,后跟的可数名词需用复数形式,不可数名词的量词也需要用复数形式。Eg:two oranges两个桔子;two pieces of bread 两片面包形容词,副词最高级用法1.表三者或三者以上的人或物进行比较时,用最高级形式。注意:形容词最高级前必须加定冠词the,副词最高级前可不加。Eg: He is the tallest boy in my class.他是我班最高的男生。He runs fastest in my class.他在我班跑得最快。2.最高级常见结构:1)A+动词+the+形容词/副词最高级+ of/in/among+比较范围Eg: He is the tallest of the three boys.他是三个男生中最高的。2)A+be +one of+the+形容词最高级+名词复数;译为"A是...中最...之一"Eg: China is one of the strongest countries.中国是最富强的国家之一。3)表示三者或三者以上的人或物中进行选择时,用句型:Which/Who+动词+the+最高级,A,B or C Eg: Which city is the most beautiful, Beijing, Shanghai or Fuzhou 哪个城市最漂亮,北京,上海还是福州 4)A+be+the+序数词+形容词最高级+名词单数+范围;译为"第几个最..."Eg: She is the second tallest girl in our class.她是我们班第二高的女孩。5)形容词最高级前面可以用形容词性物主代词,指示代词,名词所有格等修饰,但不能加定冠词the.Eg:Lucy is my best friend.露西是我最好的朋友。二、写作解析本单元写作主题为介绍"自然奇观"(一)常用句型1.Oinghai Lake is a ...in...青海湖是在...里的一个...2.Qinghai Lake is ... in China.青海湖位于中国...3.It is...in size.它有...大小。4.If you visit Qinghai Lake, you can ...如果你参观青海湖,你可以...5.Don't miss this natural wonder!不要错过这个自然奇观!(二)写作思路1.What: a salt lake2.Where:Qinghai Province,China3.Special fact: the largest lake in China(4,340 km2)4.Things to do: photograph wildlife (fish and birds), visit islands, ride a bike or horse(三)范文Discover Qinghai Lake:Qinghai Lake, a Gem in the Heart of China! It is located in Qinghai Province. Qinghai Lake is a breathtaking salt lake and the largest lake in China, it is about 4,340 square kilometres. Its crystal - clear waters reflect the vast sky, while surrounding islands and diverse wildlife create a magical scene. Cycle or ride a horse along the shore, or simply soak in the peaceful beauty. It is a place to escape, connect with nature, and make memories that will last a lifetime. Don't miss this natural wonder!21世纪教育网(www.21cnjy.com) 展开更多...... 收起↑ 资源列表 Unit 4 The Wonders of Nature 语法+写作解析.docx Unit 4 The Wonders of Nature 语法+写作解析.pptx