the suggestions given.

　　After that, exchange their writing with each other to correct mistakes.

　　At last, the teacher displays some excellent writing for the whole class to enjoy.

　　Some samples about this topic.

　　1

　　Many students are taking part in the practice of improving the environment through selling used paper and planting trees. They even set up a website to help others take practice in protecting the environment. Although people care much about the environment problems but they don't know how. So some organizations also published measures to encourage public participation in environment protection. The measures tell us what we can do to protect the environment.

　　We surely cared much about the environment protection but didn't do much. Actually there is much we can do in our daily life. Buy less to reduce waste. Don't throw away things before we have made the most use of them. Use electricity, water and gas only when necessary. Switch them off when we don't need them. Everyone can participate in making the planet suitable for future generations. Everybody can join in and make our world more fantastic. Just do it!

　　2

　　Besides giving off gases and dusts into the air, humans produce waste that is poured on the environment. Often, this waste produced by major industries and people is harmful to both nature and human life.

　　Every year, major health problems result from dangerous waste. Sadly, it is often only after someone has died or become seriously ill that the governments will take measures to reduce levels of harmful waste.

　　Some governments have realized how serious the dangerous waste problem is and are now trying to settle this problem. They are also trying to limit the amount of waste industries are allowed to produce.

　　Not only governments but ordinary people as well must work together to solve the problem. They can choose not to buy those products which require the production of dangerous waste, and produce less harmful waste themselves. Many scientists think that waste production can be cut. The waste can be reduced by at least one third using existing technologies and methods.

　　→ Step 3 Everyday English

　　While learning English, we usually encounter some confusing expressions. If we don't know their meanings, we'll misunderstand the speaker. So it's important for us to learn Everyday English. There are some expressions for you to learn. Choose correct answers for each sentence.

　　1. in a nutshell means_____________ .

　　A. in my opinion

　　B. to explain something very simply

　　2. It's scary means_____________ .

　　A. It's frightening

　　B. It's interesting

　　3. I'll do my best means_____________ .

　　A. This is the best(explanation)

　　B. I'll try as hard as I can

　　4. From what I understand means_____________ .

A. This is what I understand