【讲义】Unit 4 Amazing Plants and Animals Section A (单词+短语+句子+知识点+习题) 人教版(2024)八年级上册

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【讲义】Unit 4 Amazing Plants and Animals Section A (单词+短语+句子+知识点+习题) 人教版(2024)八年级上册

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Section A
amazing (adj. 令人惊叹的)→ amaze (v. 使惊奇) →amazement (n. 惊奇)
2. compare (v. 比较)→ comparison (n. 比较)
搭配:compare A with B 比较 A 和 B;in comparison 相比之下
3.folding (adj. 折叠式的)→ fold (v. 折叠)
搭配:folding fan 折扇;folding chair 折叠椅
4.bamboo (n.竹子)→ 复数bamboos(强调数量)注:多数情况下用 bamboo(不可数或单数)
搭配:bamboo forest 竹林;bamboo shoots 竹笋
5. ancient (adj. 古老的)
搭配:ancient trees 古树;ancient culture 古代文化
talk about 谈论
in Chinese culture 在中国文化中
use sth. to do sth.使用某物做某事
be used to do sth.被用来做某事
feel free (to do sth.)(随意做某事) 例句:Feel free to ask me any questions.
a symbol of...的象征
take a walk散步
thousands of 成千上万的
up to直到;达到(数量、程度等)
folding fan.折扇
一、句子翻译
1.蓝鲸是世界上最大的动物。
The blue whale is the largest animal in the world.
2.竹子是中国画中最受欢迎的主题之一。
Bamboo is one of the most popular subjects in Chinese paintings.
3.它是中国文化中美好品质的象征。
It’s a symbo of goodness in Chinese culture.
4.人们可以用它来建造房屋、制作工具和乐器。
People can use it to build houses and make tools and instruments.
5.请随时向我提问,有任何问题都可以问。
Please feel free to ask me any questions you have.
6.竹子在中国似乎是一种非常受欢迎的植物。
Bamboo seems to be a very popular plant in China.
7.你能告诉我为什么中国人这么喜欢竹子吗?
Can you tell me why the Chinese people like bamboo so much
8.因为这是观赏它的最美时节。As it is the most beautiful time to see it.
9.人们相信这些明亮的黄叶能给他们带来心灵上的喜悦.
People believe the bright yellow leaves can bring joy to their heart.
二、句型提取
最高级句型:主语 + be + the + 形容词最高级 + 名词 + in + 范围
最...之一句型:主语 + be + one of the + 形容词最高级 + 复数名词 + in + 范围
随意做某事:feel free to do sth.
似乎是…:seem to be + 名词/形容词(用于表达推测或看起来的状态)
原因状语从句:as + 句子,意为 “因为” 。
这是做某事的最…时候:it is + 形容词最高级+ time to do sth.
believe + 宾语从句,表示“相信…” ,
知识点1:seem 用法,似乎,好像
①seem + (to be) + 形容词 / 名词
Bamboo seems to be a very popular plant in China.[P34]
②seem + to do sth.
Bees seem to play an important role.(蜜蜂似乎起重要作用。)
③It seems + that 从句
It seems that pandas love bamboo.(似乎熊猫喜欢竹子。)
④seem like + 名词
This problem seems like a challenge.(这个问题似乎是个挑战。)
知识点2:thousand 用法
①具体数字+ thousand+名词复数(thousand 用原形)
There are three thousand students in the school.(学校有三千名学生。)
②thousands of + 名词复数(表约数,意为“成千上万的”)
Thousands of tourists visit the Bamboo Sea.(成千上万的游客参观竹海。)[P35]
易错点:
five thousand people five thousands people thousands of trees
知识点3:区别among vs. between
①among:用于三者或以上的 “在… 之中”(强调范围)。
Among all animals, I love pandas the best.在所有动物中,我最喜欢熊猫。[P35]
②between:用于两者之间(常与and连用)。
The path is between two mountains.小路在两座山之间。
discuss the connection between plants, animals, and our lives.(P31)
知识点4:区别across vs. cross vs. through
课文原句:The ginkgo tree is one of the oldest living trees in streets, parks, and gardens across China.
across在此意为“遍及;在…各处”
引申:across还可以表示“穿过”,具体用法和区别如下
①across(介词):从表面“穿过”(如马路、河流)。
They walked across the bridge.他们走过桥。
②cross(动词):= go across,意为“穿过”。
Be careful when you cross the road.过马路时要小心。
③through(介词):从内部“穿过”(如森林、隧道)。
The river flows through the city.河流穿过城市。
知识点5:宾语从句(一般现在时)
课本例句:
Do you know why the Chinese love bamboo (P33)
Scientists believe that bees play a key role.(P36)
一、定义:在句子中充当宾语的从句,通常位于及物动词(如say, know, think, believe)、介词(如about, in)或某些形容词(如sure, glad, afraid)之后。
二、引导词
1. 陈述句 → 用that(无实际意义,可省略)引导
She believes (that) honesty is important.
2. 一般疑问句→用 if/whether(意为 “是否”)引导,以下情况只能用whether:
①与or not连用时:I wonder whether he will come or not.
②从句作介词宾语时:We’re talking about whether we should change the plan.
③从句位于句首时:Whether it rains tomorrow doesn’t matter.
④与不定式连用时:She doesn’t know whether to accept the offer.
3. 特殊疑问句→用原疑问词(what, who, which, when, where, why, how 等)引导
Tell me what you want.
I don’t know where she lives.
三、语序
宾语从句必须用陈述句语序(即 “主语 + 谓语” 结构)。
错误:
I don’t know what is his name.× I don’t know what his name is.√
She asked when will the meeting start.× She asked when the meeting will start.√
时态
主句时态 从句时态 例句
现在时态(一般现在时\现在进行时\现在完成时) 根据实际情况选择,不受主句限制 She says (that) she is happy today. He knows (that) they will leave next week.
过去时态(一般过去时、过去进行时) 相应变为过去的某种时态 He said (that) he was busy yesterday. She told me (that) she would visit her uncle.
任何时态 表示客观真理或事实,始终用一般现在时 The teacher said (that) the earth goes around the sun. He knew (that) water freezes at 0°C.
五、注意事项
否定转移:当主句谓语动词为 think, believe, suppose, imagine 等,且主语为第一人称(I/we)时,若从句需否定,通常将否定词前移至主句。
I don’t think he is right.(≠ I think he isn’t right.)
We don’t believe they will win.(≠ We believe they won’t win.)
知识点6:形容词副词最高级(单元语法)
【定义】最高级用于三个或三个以上的人或事物之间的比较,常用of/in短语来说明比较的范围,of 表示比较的对象属于同一范畴;in则表示不属于同一范畴。
【注意】形容词最高级前要加定冠词the,副词最高级前的the可以省略。
He is the cleverest student of all. 他是所有学生中最聪明的。(他属于学生)
He is the cleverest student in his class. 他是他班中最聪明的学生。(他在班级范围内)
This is his most interesting book. 这是他最有趣的一本书。
【变化规则】
规则变化
单音节词和 部分双音节词 一般在词汇尾加-est tallest
以字母e结尾的词,在词尾加-st nicest
重读闭音节词词尾只有一个辅音字母时,先双写该辅音字母,再加-est 大胖瘦热脸湿红 biggest
以“辅音字母+y”结尾的双音节词,先把“y”变为“i”,再加-est funniest
多音节词和 部分双音节词 在词前加most most carefully
不规则变化
1. good/well → best(最好的 / 地)
It’s the best film I’ve ever seen.这是我看过的最好的电影。
She sings best among us.她在我们中唱歌最好。
2. bad/badly/ill → worst(最坏的 / 最糟的)
That was the worst experience of my life.那是我人生中最糟糕的经历。
The drought affected farmers worst.干旱对农民影响最严重。
3. many/much → most(最多的 / 地)
She has the most friends in our class.她在我们班朋友最多。
She works most carefully.她工作最认真。
4. little → least(最少的 / 地)
He has the least experience among us.他在我们中经验最少。
She talks least but does most.她话最少,但做得最多。
5. far → farthest/furthest(最远的 / 最深远的)
The library is the farthest building on the left.图书馆是左边最远的那栋楼。
Love can reach the furthest corners of the heart.爱能抵达心灵最深远的角落。
6. old → oldest/eldest(最年长的 / 最古老的)
表语:My grandfather is the oldest in the family.我祖父是家里年纪最大的。
定语:This is the oldest tree in the park.这是公园里最古老的树。
Her eldest son is a lawyer.她的长子是一名律师。
【句型结构】
1.基本句型
①主语+ be+ the+形容词最高级+in/of ...
Tom is the tallest of these students. (Tom与students是一类) 汤姆是这些学生中最高的。
Tom is the tallest in his class. (Tom与class不是一类)汤姆是班里最高的。
②主语+实义动词(+the)+副词最高+in/of ...
Tom works (the) hardest in Class 3.汤姆是三班学习最刻苦的。
2.疑问句型
①疑问词+be/行为动词+最高级,A、B or C?
Who is the tallest, Tom, Kate or Bill 汤姆、凯特和比尔谁最高?
Who runs fastest, Tom, John or Jim 汤姆、约翰和吉姆谁跑得最快?
②疑问词+助动词+主语+动词原形(+the)+副词最高级,A、B or C?
Which city do you like best, Beijing, Shanghai or Guangzhou
你最喜欢哪个城市,北京、上海还是广州?
3.最高级加修饰词的句型
①主语+be+ one of the+形容词最高级+可数名词复数+in/of ... 最...之一
Hangzhou is one of the biggest cities in China.杭州是中国最大的城市之一。
②主语+be + the+序数词+形容词最高级+可数名词单数+in/of短语
The Yellow River is the second longest river in China.黄河是中国第二长河。
注意:如果最高级前有物主代词、指示代词、名词所有格等修饰时,则不用定冠词the。
My eldest daughter is 16 years old. 我最大的女儿16岁了。
4.比较级表达最高级的句型
①主语+be+比较级+than+any other+名词单数+in/of ...
②主语+be+比较级+than+the other+名词复数+in/of ...
Nanjing is larger than any other city/the other cities in Jiangsu Province.
南京比江苏省其他任何城市都大。
【活学活用】
1.Which subject is ______ for you, math, English, or history
A. difficult B. more difficult C. most difficult D. the most difficult
解析:三者比较用最高级,形容词最高级需加 the。
答案:D
2.He has ______ money than me, but he has ______ friends.
A. less; more B. fewer; most C. least; more D. less; most
解析:money(不可数)用 less,friends(可数)用 more(比较级)。答案:A
3.She is ______ student in the class, always scoring 100 points.
A. smart B. smarter C. the smartest D. smartest
解析:“in the class” 表示范围,形容词最高级加 the。答案:C
4. He is ______ than his brother, but he is ______ in the family.
A. younger; the youngest B. young; youngest C. youngest; younger D. the youngest; younger
解析:第一空两者比较用比较级 younger,第二空全家范围用最高级 the youngest。答案:A
一、词汇与短语填空
The blue whale is the ______ (large) animal in the world.
We should ______ (保护) wildlife from danger.
There is a close ______ (connect) between plants and animals.
Please feel ______ (随意的) to ask me questions about Chinese culture.
Thousands of ______ (tourist) visit the bamboo forest every year.
答案:1. largest 2. protect 3 connection 4. free 5. tourists
二、语法与句型专项
1.熊猫是世界上最可爱的动物之一。
Pandas are ______ ______ ______ ______ ______ animals in the world.
2.这是一年中观赏红叶最美的时节。
It is ______ ______ ______ time to see the red leaves.
3.竹子在中国似乎是一种重要的植物。
Bamboo ______ ______ ______ an important plant in China.
4.你能告诉我为什么竹子这么坚固吗?
Can you tell me ______ ______ ______ so strong
5.科学家相信蜜蜂对植物很重要。
Scientists ______ ______ bees are important to plants.
6.每年春天,成千上万的游客来看竹海。
______ ______ visitors come to the Bamboo Sea every spring.
答案:1.one of the cutest 2. the most beautiful 3. seems to be 4. why bamboo is5. believe that 6.Thousand of

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