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沪教版英语七年级下册 Unit 3 单元词汇梳理
一、 单词与词组详解
1. branch /brɑ nt / n. 树枝；分枝
【拓展】 还可以指“分公司”、“分店” (branch office)。
The bird is singing on the branch. 鸟儿正在树枝上唱歌。
2. root /ru t/ n. 根；根茎
【搭配】 take root (生根；扎根)。
Roots take in water from the soil. 根从土壤中吸收水分。
3. silent / sa l nt/ adj. 不说话的；沉默的
【搭配】 【拓展】 keep silent (保持沉默)；silence (n. 寂静；沉默)。
We should keep silent in the library. 我们在图书馆里应该保持安静。
4. overlook / v l k/ v. 忽略；未注意到；俯瞰
People often overlook the importance of trees. 人们经常忽略树木的重要性。
5. human / hju m n/ n. 人
【拓展】 human being (人类)。
Trees provide many things for humans. 树木为人类提供很多东西。
6. oxygen / ks d n/ n. 氧；氧气
【注意】 不可数名词。
We cannot live without oxygen. 没有氧气我们无法生存。
7. create /kri e t/ v. 创造
【拓展】 creative (adj. 有创造力的)；creation (n. 创造；作品)。
Trees help create a clean environment. 树木有助于创造一个清洁的环境。
8. environment / n va r nm nt/ n. 自然环境
【搭配】 【拓展】 protect the environment (保护环境)；environmental (adj. 环境的)。
We must work together to protect our environment. 我们必须共同努力保护我们的环境。
9. convenient /k n vi ni nt/ adj. 便利的；方便的
【易错点】 不能说“人 is convenient”。常用句型：It is convenient for sb. to do sth. (对某人来说做某事是方便的)。
It is convenient for us to buy things online. 对我们来说，在网上买东西很方便。
10. furniture / f n t (r)/ n. 家具
【易错点】 不可数名词，不能加s。一件家具：a piece of furniture。
We bought some new furniture for our new house. 我们为新房子买了一些新家具。
11. wood /w d/ n. 木；木头
【拓展】 wooden (adj. 木制的)。
This table is made of wood. 这张桌子是木头做的。
12. treat /tri t/ v. 以……态度对待；治疗；款待
【搭配】 treat...as... (把……看作……)；treat sb. well (善待某人)。
We should treat trees as our friends. 我们应该把树木当作我们的朋友。
municate /k mju n ke t/ v. 交流；沟通
【搭配】 【拓展】 communicate with sb. (与某人交流)；communication (n. 交流)。
Trees can communicate with one another. 树木之间可以互相交流。
14. species / spi i z/ n. 种；物种
【注意】 单复数同形 (a species, many species)。
There are many different species of birds in the forest. 森林里有很多不同种类的鸟。
15. product / pr d kt/ n. 产品；制品
【拓展】 produce (v. 生产)。
Paper is a forest product. 纸是一种森林产品。
16. side /sa d/ n. 一面；一边
We should write on both sides of the paper. 我们应该在纸的两面书写。
17. borrow / b r / v. 借；借用
【辨析】 borrow ... from ... (从……借进)；lend ... to ... (把……借给)；keep (借一段时间，延续性动词)。
You can borrow books from the library. 你可以从图书馆借书。
18. dig /d ɡ/ v. 掘(地)；凿(洞)；挖(土)
【规则变化】 过去式/过去分词: dug, dug；现在分词: digging。
They are digging a hole to plant a tree. 他们正在挖坑种树。
19. hole /h l/ n. 洞；孔；坑
Be careful! There is a big hole in the ground. 小心！地上有个大洞。
20. stick /st k/ n. 棍；条
【拓展】 作动词意为“粘住；刺入”，过去式 stuck。sticky (adj. 粘的)。
The dog is playing with a stick. 那只狗正在玩一根棍子。
21. accident / ks d nt/ n. 意外；偶然的事；事故
【搭配】 by accident (偶然地；意外地)。
I met an old friend by accident yesterday. 昨天我偶然遇到了一位老朋友。
22. knowledge / n l d / n. 知识；学问
【注意】 不可数名词。Knowledge is power. (知识就是力量)。
He has a lot of knowledge about tea. 他有很多关于茶的知识。
23. character / k r kt (r)/ n. 文字；符号；性格；角色
【搭配】 Chinese characters (汉字)。
Chinese characters are very interesting to learn. 学习汉字很有趣。
24. spread /spred/ v. 传播；伸展
【规则变化】 过去式/过去分词: spread, spread (AAA型)。
Tea culture spread from China to other countries. 茶文化从中国传播到了其他国家。
25. translation /tr nz le n/ n. 译文；译本
【拓展】 translate (v. 翻译)；translate ... into ... (把……翻译成……)。
I read the English translation of the book. 我读了这本书的英译本。
26. take in 吸收；摄入
Trees take in carbon dioxide and produce oxygen. 树木吸收二氧化碳并产生氧气。
27. greenhouse gas 温室气体
We should produce fewer greenhouse gases. 我们应该减少温室气体的排放。
28. to begin with 首先；第一点
To begin with, we need to protect the forests. 首先，我们需要保护森林。
e from 来自
【同义】 be from。
Many products come from trees. 许多产品来自树木。
30. look around 环视；环顾；四下察看
Please look around your classroom. What can you see 请环顾你的教室。你能看到什么？
31. be made of 由……制成
【辨析】 be made of (看出原材料，物理变化)；be made from (看不出原材料，化学变化)。
The chair is made of wood. 这把椅子是木头做的。
32. call on 号召；动员；要求
【搭配】 call on sb. to do sth. (号召某人做某事)。
We call on people to stop cutting down trees. 我们号召人们停止砍伐树木。
33. according to 据（……所说）；按（……所报道）
According to the report, the air is getting cleaner. 根据报告，空气正变得越来越干净。
二、 单元“单词”练习
（一） 单项选择 (5道)
1. We bought some new ______ for our living room last week.
A. furnitures B. furniture C. chair D. table
2. Trees can ______ harmful gases and produce oxygen to help us breathe.
A. take off B. take away C. take in D. take out
3. — Can I ______ your dictionary — Sorry, I have ______ it to Tom.
A. borrow; lent B. lend; borrowed C. keep; lent D. borrow; kept
4. The desk is made ______ wood, and the paper is made ______ wood, too.
A. of; of B. from; from C. of; from D. from; of
5. It is ______ for us to travel by underground in Shanghai.
A. happy B. convenient C. friendly D. difficult
（二） 用所给词的适当形式填空 (4道)
1. Look! The workers are ____________ (dig) holes to plant trees.
2. Scientists say that trees can ____________ (communication) with each other.
3. Lu Yu wrote Cha Jing to share his ____________ (know) about tea.
4. This beautiful bridge is a ____________ (wood) structure.
（三） 短文填空 (9道小题)
Trees are our silent friends. They are very important to (1) ____________ (human). To begin with, trees provide us with (2) ____________ (oxygenic) to breathe. They also take in greenhouse gases and create a clean and cool (3) ____________ (environmental) for us. Look around your house. You can find many things made of wood, such as desks, chairs and other (4) ____________ (furniture). Paper is also a forest (5) ____________ (produce). However, we often (6) ____________ (overlook) what trees do for us. Some people cut down trees to make things. (7) ____________ (accord) to a report, many species are in danger because of this. We should treat trees well. For example, we can use paper (8) ____________ (wise) by writing on both sides. We should also plant more trees. Let's call (9) ____________ everyone to protect our green friends.
三、 参考答案
（一）单项选择
1. B (furniture是不可数名词，不能加s)
2. C (take in 吸收)
3. A (borrow...from... 借进; lend...to... 借出)
4. C (桌子看出木头用of; 纸看不出木头用from)
5. B (It is convenient for sb. to do sth. 做某事是方便的)
（二）用所给词的适当形式填空
1. digging (look提示现在进行时，dig双写g加ing)
2. communicate (can后接动词原形)
3. knowledge (n. 知识，share his knowledge)
4. wooden (adj. 木制的，修饰名词structure)
（三）短文填空
1. humans (n. 人类，复数)
2. oxygen (n. 氧气)
3. environment (n. 环境)
4. furniture (n. 家具，不可数)
5. product (n. 产品)
6. overlook (v. 忽略，一般现在时)
7. According (According to 根据，首字母大写)
8. wisely (adv. 明智地，修饰动词use)
9. on (call on 号召)

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