4. 你在此時放棄是不明智的。

It's not at this moment.

3. 近來人們談論最多的話題是關于環(huán)境問題。

The hottest topic that people are these days is about environmental problems.

2. 成績的好壞取決于你是否努力。

Good or bad grades whether you are hard-working or not.

1. 人們可以通過循環(huán)利用來節(jié)約資源。

People can save resources .

6. The work is going to be finished in two days.(改為否定句)

The work be finished in two days.

5. I am given a birthday present by my parents every year.(同義句轉換)

A birthday present by my parents every year.

4. You should pay attention to your pronunciation in learning English.(改為被動語態(tài))

Attention should   to your pronunciation in learning English by you.

3. They grow rice in South China.(改為被動語態(tài))

Rice   in South China by them.

2. Where do people plant the trees?(改為被動語態(tài))

Where  the trees  by people?

1. People speak English widely in the world.(改為被動語態(tài))

English   widely in the world by people.