内容正文:
Unit 3 Trees and us
Extending and developing competencies
1. According to a Chinese legend, Shennong discovered tea by accident when some leaves fell from a tree into his drink.根据中国传说,当树叶从树上落入神农的饮品中,他偶然间发现了茶。
词义:(1) according to 据(……所说);按(……报道)
(2) by accident 偶然地;意外地
(3) fall from…in to.从……掉入……中
例句:
(1) According to the news, Chinese government is trying to plant more trees in the desert.
根据新闻,中国政府正努力在沙漠种更多的树。
(2) He found out the truth by accident. 他意外发现了真相。
(3) In autumn, some tree leaves fall from the trees into the river.
在秋天,一些树叶从树上掉入到小河中。
巩固:
(1)根据新闻报道,科学家威廉·伦琴意外发现了X射线。
__________ ___________the news, the scientist Wilhelm Röntgen found X-ray_________ _________ .
(2) Suddenly, an apple f___________ from the tree into a big hole.
2. The oldest tea archaeologists have found so far is almost 2,200 years old.考古学家迄今发现的最古老的茶叶已有大约2 200年的历史。
词组:so far 迄今为止;到目前为止
用法: so far 常与现在完成时(have +过去分词)连用
例句:
(1) What do you think of the show so far? 到目前为止,你觉得这场演出怎么样?
(2) So far, we have finished the big task. 到目前为止,我们已经完成了这项重大的任务。
巩固:到目前为止,山姆已经在网上成功上传了他的几个视频并收获了一些粉丝。
_____ ______, Sam has successfully put several of his videos online and won some fans.
3. It dates back to the early Han dynasty. 它可追溯到汉朝初期。
词组: date back to …追溯到……
用法:(1)主语+date(s) back to+时间,指的是一个表示起源或历史可以追溯到某个具体时间,通常用于描述物品、传统、文化、历史事件、建筑物等的年代久远。
(2)通常使用一般现在时,表示这是一个持续存在的事实,不受时间变化的影响。
例句: The Great Wall dates back to the Qin dynasty. 长城可以追溯到秦朝。
巩固:足球的历史可以追溯到几千年前。
The history of football can_______ _______ _____thousands of years ago.
4. —— they used it as medicine. ——他们把它(茶)用作药。
用法: use A as B 把 A用作B
例句: In ancient times, people used stones as tools for farming. 在古代,人们把石头用作耕作工具。
拓展:
(1) use A as B 把 A用作 B →A be used as B A 被用作B
(2) use … to do sth.用……去做某事
巩固:他们把这个房间用作一个办公室。
________________________________________________________
5. Thanks to a man named Lu Yu (733-804 CE), people all over China started enjoying tea as a drink. 由于一位名叫陆羽的人(公元733~804年),全中国的人们开始把茶叶当作一种饮品享用。
词组:(1) thanks to …由于;多亏……
(2) enjoy...as...把……当成……去享用
例句:
(1) Thanks to the high-speed railways, they make our travelling more convenient.
多亏了高铁,他们使我们的旅游更便利。
(2) We can enjoy reading as a way of relaxing. 我们可以把阅读当成一种休闲方式。
巩固:多亏了他们的帮助,小狗们有一个住的地方了。
_________ _______their help, the dogs had a place to live in.
6. Lu Yu carefully studied the art of making tea, and he wanted to share his knowledge with others.陆羽仔细地研究制茶的艺术,并且他想和其他人分享他的知识。
词义: study/'stʌdi/ v. &n. 学习;研究
例句:
(1) It is important to study English well. 学好英语很重要。
(2) They studied the tea to find out the best one. 他们研究茶为了找出最佳的那款。
巩固: They did several s________ to help the insects.
7. Not long after Lu Yu died, tea culture quickly spread across the country, and he became known as the Sage of Tea. 陆羽去世不久后,茶文化在全国迅速传播,陆羽也以“茶圣”而闻名天下。
词组:(1) spread across the country 传遍全国
(2) become known as …作为……而出名
例句:(1) Thanks to the Internet, hanfu soon spreads across the country.多亏了网络,汉服迅速传遍全国。
(2) Du Fu became known as the Sage of Poem in China. 杜甫在中国以“诗圣”而出名。
巩固:广州作为花城而在全国出名。
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基础练习·课时过关
一、用所给单词的正确形式填空。
1. Nothing in life is really__________(accident).
2. This plant has green__________(leaf) throughout the year.
3. There was a huge__________(wood) house at the empty plain.
4. Huawei company__________(product) thousands of smartphones last year.
5. There are many green trees on both__________(side) of Panlong River.
6. The students in the university come from different__________ (country).
7. What______________(environment) problems are there in our city?
8. There are three__________(well) in this small village.
9. The 2024 Paris Olympic Games__________(spread) lots of joyful and exciting moments to us.
10. We don’t know the names of the main______________(character) in the film Postman in the Mountains.
二、根据句意及首字母提示写单词。
1. He always keeps s________ at the meetings.
2. The cancer has s________ to his stomach.
3. The bird is sitting on a b________ of the tree.
4. F________, they arrived at the top of the hill.
5. We can’t i________ a world without animals or trees.
6. People c____________with each other in different ways.
7. I often t________ myself to a cup of coffee in the afternoon.
8. Sorry, Dad. I broke your cup and I want to a__________ to you.
9. Travelling in our daily life is becoming much easier and more c___________.
10. We should try our best to save the environment and c________ a better future.
三、完成句子。
1.植物在光合作用时吸收二氧化碳并释放氧气。
Plants______ _____CO₂and release oxygen during photosynthesis.
2.树木可以通过空气和根互相交流。
Trees can_____________ ______each other through the air and roots.
3.树木使得空气凉爽和清洁。
Trees__________air cool and__________.
4.我们需要呼吁所有人把树当成我们最好的朋友。
We need to call on everyone to_________trees______our best friends.
5.保护树木对于每一个人来说都很重要。
______ _____important for everyone__________ ___________trees.
四、阅读理解。
Trees are important and they can help us in many ways. However, some of them are in danger and need to be taken care of as much as possible. There are some ways to save trees.
Use paper wisely. We can save trees by using paper in a right way. What can we do? Use both sides of paper when doing homework. Borrow books to read when you needn’t buy them. Never throw old books away, but be kind to donate them to others who need them. In place of paper towels, use cloth towels.
Plant trees. To save trees, it’s a great idea to plant them. Spring is the best season to plant trees. If everyone around us does it, millions of trees will appear and make our world become green and beautiful.
Tell people to understand the importance of trees and help save trees. Try to write letters to government officials (官员) to call for people to use as little paper as possible.
( ) 1. How many ways are there to use paper wisely?
A. Two. B. Three. C. Four. D. Five.
( ) 2. What can we do if we want to save trees?
A. Plant trees. B. Stop using towels.
C. Work with the government. D. Never do any homework.
( ) 3. What does the underlined word “donate” in Paragraph 2 mean?
A. Lead. B. Sell. C. Throw. D. Give.
( ) 4. Which of the following is true?
A. All trees on the Earth are in danger. B. Try to use cloth towels.
C. To save trees, never buy books. D. Most people can’t understand trees.
( ) 5. The passage mainly wants to tell us _______.
A. why to save trees B. how to save trees
C. where to find trees D. when to plant trees
五、阅读填空。
Every living thing needs to reproduce. __1________ In order for plants to reproduce, they have to spread their seeds to other areas. Plants have developed all kinds of ways to do this.
The simplest way is gravity. __2________When fruit gets too heavy, it falls from a tree to the ground. Sometimes animals will pick up the fruit and drop it in another area. That helps move the seed even farther away. Apples spread this way.
__3________Dandelions(蒲公英) are a good example of this. Dandelion seeds are so light that when wind blows,it carries dandelion seeds to new places. Maple (枫树) seeds also use wind. Their seeds are connected with long,thin leaves that look like wings. When the seed falls from the tree, its“wings” help it fly farther from the tree.
Some animals help plants spread their seeds. __4________While the seed is in the animal’s body, it stays whole.When the seed leaves the animal, it’s in a new place.
Ants also help spread seeds. Some seeds have a special smell that appeals to ants. The ants bring the seeds back to their home, which of course is underground. __5________They leave the rest of the seed underground. After that, the seed can start growing.
A. The animals eat the seeds.
B. Many seeds are inside the fruit.
C. Reproducing means creating more members of your group.
D. They only eat part of the seed.
E. Other plants use wind to spread their seeds.
参考答案:
一、1. accidental 2. leaves 3. wooden 4. produced 5. sides
6. countries 7. environmental 8. wells 9. spread 10. characters
二、1. silent 2. spread 3. branch 4. Finally 5. imagine
6. communicate 7. treat 8. apologize 9. convenient 10. create
三、1. take in 2. communicate with 3. make, clean 4. treat, as 5. It is, to protect
四、CADBB
五、CBEAD
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