Unit 4 Amazing Plants and Animals 知识汇总 人教版(2024)八年级英语上册

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Unit 4 Amazing Plants and Animals 知识汇总 人教版(2024)八年级英语上册

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Unit 4 Amazing Plants and Animals
一、词性转换
Section A
1.good—goodness(n.美德;营养)
2.actual—actually(adv.实际上)
3.use—useful(adj.有用的)
—useless(adj.无用的)
4.weigh—weight(n.重量)
5.hope—hopeful(adj.有希望的)
—hopeless(adj.绝望的)
6.leaf—leaves(pl.)叶子
7.popular—popularity(n.普及)
8.butterfly—butterflies(pl.)蝴蝶
Section B
connect—connection (n.联系)
—connected(adj.有联系的)
2.imagine—imagination (n.想象力)
3.disappoint—disappointed(n.失望的)
— disappointing(n.令人失望的)
— disappointment(n.失望)
4.angry—angrily(n.生气地)
6.sad—sadly(adv.难过地)
—sadness(n.难过;悲伤)
7.action —act(v.表演;行动)
8.science —scientific (adj.科学的)
—scientist(n.科学家)
9.create —creator(n.创造者)
—creative(adj.有创造力的)
—creativity(n.创造性)
10.communicate —communication(n.交流)
11.important —importance(n.重要性)
12.drop —dropped(过去式)
—dropping(现在分词)
13.protect —protection(n.保护)
14.nature —natural(adj.自然的)
15.happy —happiness(n.快乐;幸福)
16.farm —farmer(n.农民)
—farming(n.农业)
17.popularity —polular(adj.受欢迎的;流行的)
18.live —alive(adj.活着的)
—lively(adj.活泼的)
二、重点短语
Section A
1.folding fan 折扇
2.several times几次
3.a symbol of goodness美德的象征
4.one of……之一
5.be interested in对……感兴趣
6.seem to be
7.up to达到;接近于
8.take a walk 散步
Section B
1.in fact 事实上
2.work hard 努力工作/学习
3.for this reason 出于这个原因
4.in order to 为了;以便
5.play a part (in sth) 参与某事
6.the number of ...的数量
7.think about 考虑
8.between…and …在之间
9.mean to 对…有意义
10.play a role (in)在…中发挥作用;扮演角色
11.live up to 达到;符合
三、固定搭配
1. be connected with / to 与……相连;与……有关联
2. be home to sb / sth 有……栖息;是……的家乡
3. feel free to do sth. 随便做某事
4. be used to do sth. 被用来做某事
5. help (to) do sth 帮助做某事
6. How do you think... = What do you think... 你认为……怎么样?
7. It's + adj. + (for sb.) + to do sth. (对某人来说) 做某事是……的
8. Without..., ... can't...:没有……,……就不能……
9. bring joy to 给……带来快乐
10.watch sb do sth观看某人做某事
11.What's the largest animal in the world 世界上最大的动物是什么?
12.Bamboo is one of the most useful plants in the world. 竹子是世界上最有用的植物之一。
13.The more you read, the more knowledge you will get. 你读得越多,获得的知识就越多。
四、重点句子
Section A
1. What’s amazing about the blue whale It’s the largest/biggest/heaviest animal in the world.
蓝鲸有什么令人惊异的地方?它是世界上最大/最重的动物。
2.Bamboo is one of the most popular subjects in Chinese paintings.
竹子是中国画中最受欢迎的主题之一。
3.Bamboo seems to be a very popular plant in China.
竹子在中国似乎是一个非常受欢迎的植物。
4.The cheetah runs the fastest among all land animals.
在所有的陆地动物中,猎豹跑得最快。
5.I think the most useful plant in the world is bamboo.
我认为世界上最有用的植物是竹子。
6.Among all animals, I love pandas the best.
在所有的动物中,我最喜欢熊猫。
7.Which do you think is the most beautiful, the rose, the peony, or the lotus flower?
你认为哪一个是最漂亮的,是玫瑰,牡丹,还是莲花?
8.Which animal jumps the highest, the lion, the monkey, or the tree frog
哪个动物跳得最高,狮子,猴子还是树蛙?
9.Some could stand up to three meters tall and weigh up to 860 kg.
有些站起来高达3米,体重达860kg。
Section B
1.We can’t live without bees. 没有蜜蜂我们无法生存。
2.At this moment you realize people, plants, and animals are all connected.
在此刻,你意识到人、植物和动物都是相互联系的。
3.In fact, without their work, about 80 percent of the plants in the world cannot grow.
事实上,没有它们的工作,世界上大约80%的植物无法生长。
4.For this reason, many scientists believe that bees are the most important animals on this planet.
出于这个原因,很多科学家相信蜜蜂是这个星球上最重要的动物。
5.In order to store honey, they create honeycombs. 为了储存蜂蜜,他们创造了蜂巢。
6.However, the number of bees is dropping, and scientists are worried.
然而,蜜蜂的数量在下降,科学家很担忧。
7.I felt disappointed when my favorite flowers died. 当我最喜欢的花儿枯萎的时候,我感到失望。
8. Frogs play an important role in our land ecosystem.
青蛙在我们的陆地生态系统中发挥着重要的作用。
9.The smallest frogs are about the size of a pea, while larger ones can grow as big as a human hand.
最小的青蛙只有豌豆大小,大一点的青蛙可以长得像人手一样大。
10.Because of this, they are popular subjects in studies on climate change and the ecosystem
因为这点,它们是气候变化和生态系统研究方面受欢迎的主题。
五、重点语法
形容词/副词最高级
1. 形容词/副词最高级: 用于三者或三者以上的人或事物相比较。
(1)标志词:表比较范围时用in/of
(2)形容词最高级前须加定冠词the,副词最高级前可省略the。但是当最高级前有物主代词或名词所有格修饰时,则其前不用定冠词the.
2. 形容词、副词的最高级变化规则
(1). 规则变化
规则 原级 最高级
1. 单音节词的最高级+est short shortest
2. 以e结尾的单音节词的最高级+st nice nicest
3. 辅音字母+y结尾,变y为i+est,变最高级 happy happiest
4. 重读闭音节,双写结尾最后一个辅音字母再+est,变最高级 big biggest
thin thinnest
5.某些双音节词和多音节词(3个或以上) 的最高级在前面+the most或the least. slowly the most slowly
interesting the least interesting
expensive the least expensive
(2). 不规则变化:口诀助记:两多,两好,两坏病,一老,一少,远距离。具体变化见下表
口诀 原级 最高级 口诀 原级 最高级
两多 many most最多的 一老 old eldest
much oldest
两好 good best最好的 一少 little Least最少的
well
两坏病 bad worst最糟糕的 远距离 far Farthest最远的
badly furthest
3.最高级用法句型:
(1)A + be动词 + the 形容词最高级 + 表示范围(in/of介词短语)
(2)A + 实意动词 + (the) 副词最高级 + 表示范围的of/in介词短语
(3) Who/ Which…+ 最高级…, A, B or C
(4)one of +the +形容词最高级 +名词复数形式, 意为“最…之一”。
(5)序数词后跟形容词最高级
六、书面作文
1.假如你是李华,你的美国笔友Tom想了解你最喜欢的动物。请你根据以下提示,给他写一封电子邮件。
提示:1.你最喜欢的动物是什么;2.它长什么样子;3.它来自哪里;4.它喜欢吃什么;
5.你为什么喜欢它。
Dear Tom,
I’m glad to tell you about my favorite animal. My favorite animal is the panda.
Pandas are cute. They have black eyes, black ears and a white body. They are from Sichuan, China. Pandas love eating bamboo very much. They can eat a lot of bamboo every day.
I like pandas because they are so lovely and unique. They are also a symbol of China. I hope I can see them in Sichuan one day.
Best wishes!
Yours,
Li Hua
[写作步骤]
第一步,简要描述自己最喜欢的动物;
第二步,具体描述这种动物的外貌、生活习性等;
第三步,描述喜欢这种动物的理由。
2.动物和我们人类生活在同一个星球,我们和动物同呼吸,共命运。我校将举行以“________ Are Good for Us”为题的征文大赛,请你写一篇英语短文参赛。
要点:
1.简单介绍一种你熟悉的小动物,它(们)的生活习性和特点;
2.它(们)对人类的贡献(两点);
3.它(们)面临的处境,以及号召对它(们)的热爱和保护。
Frogs Are Good for Us
We can see frogs everywhere in summer. Though they don’t look nice, they are good for us.
Frogs are interesting animals. They can live not only on land but also in water. The smallest frogs are about the size of a pea, while the larger ones can grow as big as a human hand.
What do they eat They usually eat insects which are bad for plants. For this reason, we believe that frogs help to protect plants, especially crops that we live on. How great they are!
However, to our disappointment, the number of frogs is becoming fewer and fewer. They need our help. Let’s love them and do something together to save as many frogs as possible!
[写作步骤]
第一步,引出话题,指出夏天青蛙随处可见;
第二步,介绍青蛙的习性、特点及对人类贡献;
第三步,表达对青蛙数量减少的担忧,呼吁大家爱护并保护青蛙。
3.你听说过某些濒临灭绝的动物吗?请以“Protect Wild Animals”为题,用英语写一篇短文,说明保护野生动物的重要性。
提示:
(1)为什么有些野生动物处于危险之中?
(2)为什么保护野生动物很重要?
(3)我们应该采取什么措施来保护野生动物?
Protect Wild Animals
There are many endangered animals in the world, such as tigers and pandas. When farmers cut down trees, tigers can no longer hide and hunt. We humans kill them to sell their fur for money.
We are not alone in the world. We could not live without the plants or animals around us. So protecting wild animals is very important. We must take action to keep plants from being destroyed and stop animals from being killed. We all hope that there will be more forests and wild animals in the future.
[写作步骤]
第一步,介绍有些野生动物处于危险中的原因;
第二步,介绍保护野生动物的重要性;
第三步,介绍保护野生动物应采取的措施。

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