人教版九年级英语Unit 5 What are the shirts made of
第五课时 Section B 1a-1e 分层练习
一、基础练习（词汇与句子理解）
1. 根据句意及首字母提示，补全单词。
1. The shirt is made of c______, which is very comfortable to wear.
2. This kind of paper is p______ from wood, so we should save paper to protect trees.
3. The artist used s______ to make a beautiful sculpture.
4. The bag is made of l______, so it is very strong and durable.
5. The kite is made of b______ and paper, and it flies high in the sky.
2. 根据中文提示，完成句子。
1. 这件毛衣是由羊毛制成的。
This sweater ______ ______ ______ wool.
2. 这些瓶子可以被回收利用。
These bottles can ______ ______.
3. 这种材料是由塑料和金属混合而成的。
This material is made ______ a ______ of plastic and metal.
4. 这张桌子是由木头制成的，非常坚固。
This table is ______ ______ wood, and it is very strong.
5. 这些玩具是中国制造的。
These toys ______ ______ ______ China.
二、阅读理解练习
Passage 1
The Story of Cotton
Cotton is one of the most widely used materials in the world. It is a natural fiber that comes from the cotton plant. The process of making cotton into cloth is long and involves many steps. First, the cotton is picked from the plants. Then, it is cleaned and spun into thread. After that, the thread is woven into cloth. Finally, the cloth is dyed and made into clothes, towels, and other products.
Cotton is popular because it is soft, comfortable, and easy to wash. It is also breathable, which means it allows air to pass through, keeping the body cool in hot weather. However, cotton farming requires a lot of water and can harm the environment if not managed properly.
根据短文内容，回答下列问题。
1. Where does cotton come from
2. What are the steps to turn cotton into cloth
3. Why is cotton popular for making clothes
4. What is one disadvantage of cotton farming
Passage 2
The Art of Paper Making
Paper is an essential part of our daily lives. It is used for writing, printing, packaging, and many other purposes. The invention of paper is attributed to Cai Lun, a Chinese official, during the Han Dynasty. Before paper, people wrote on bamboo, silk, or animal skins, which were heavy and expensive.
The process of making paper begins with wood or other plant fibers. These materials are broken down into pulp, which is then mixed with water. The mixture is spread out and pressed into thin sheets. After drying, the sheets become paper.
Today, paper production has a significant impact on the environment. Cutting down trees for paper contributes to deforestation. To reduce this impact, many companies now use recycled paper or alternative materials like bamboo.
根据短文内容，判断正误（T/F）。
1. Paper was invented by Cai Lun during the Han Dynasty.
2. Before paper, people only wrote on bamboo.
3. The process of making paper involves turning wood into pulp.
4. Using recycled paper helps reduce deforestation.
Passage 3
The Journey of a Plastic Bottle
Plastic bottles are everywhere, but have you ever wondered what happens to them after they are thrown away Most plastic bottles are made from a material called PET (polyethylene terephthalate). After being used, these bottles can be recycled.
The recycling process begins when the bottles are collected and sorted. They are then cleaned and crushed into small pieces. These pieces are melted and turned into pellets, which can be used to make new products like clothing, carpets, or even new bottles.
However, not all plastic bottles are recycled. Many end up in landfills or the ocean, where they can take hundreds of years to break down. This is why it is important to recycle and reduce the use of single-use plastics.
根据短文内容，选择正确答案。
1. What are most plastic bottles made of
A. Cotton
B. PET
C. Wood
D. Metal
2. What is the first step in recycling plastic bottles
A. Melting them into pellets
B. Collecting and sorting them
C. Turning them into clothing
D. Crushing them into small pieces
3. What can recycled plastic bottles be used to make
A. Only new bottles
B. Clothing and carpets
C. Paper and wood
D. Metal products
4. Why is it important to recycle plastic bottles
A. To save money
B. To reduce pollution
C. To make more bottles
D. To create new materials
三、拓展练习（写作与表达）
1. 根据以下提示，写一篇短文（80-100词）。
提示：你最喜欢的物品是什么？它是由什么材料制成的？为什么你喜欢它？它的制作过程对环境有影响吗？
2. 小组讨论：
- 你认为我们应该如何减少对环境的负面影响？
- 你平时会注意回收利用吗？为什么？
答案
一、基础练习
1. 1. cotton 2. produced 3. stone 4. leather 5. bamboo
2. 1. is made of 2. be recycled 3. of, mixture 4. made of 5. are made in
二、阅读理解练习
Passage 1
1. It comes from the cotton plant.
2. The steps are picking, cleaning, spinning, weaving, dyeing, and making into products.
3. Because it is soft, comfortable, easy to wash, and breathable.
4. It requires a lot of water and can harm the environment.
Passage 2
1. T 2. F 3. T 4. T
Passage 3
1. B 2. B 3. B 4. B
三、拓展练习
（答案略，根据学生实际回答评分）

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