一、根据句意,从方框中选择合适的单词填空,补全句子。
sort recycle grey clever
1. We should our rubbish before we throw it away.
2. It is very to reuse old things and make them into something new.
3. Dirty paper can't be reused or recycled. It always goes into the bin.
4. Plastic bottles can go into the blue bin. We can them to make new things.

1. sort 2. clever 3. grey 4. recycle

二、用What或How填空，补全句子。
1. interesting work!
2. important the job is!
3. useful the toy panda is!
4. a great way to reuse old things!
5. smart plans for the plastic bags!

1. What 2. How 3. How 4. What 5. What

三、根据所给示例,用 What 或 How 改写句子。
例:The flowers are very beautiful. → What beautiful flowers!
1. This is really nice. →
2. They're very exciting. →
3. That is a dirty plastic bag. →

1. How nice! 2. How exciting (they are)! 3. What a dirty plastic bag!

四、阅读短文,根据首字母或句意在空白处填入一个恰当的单词,使短文完整、通顺。
Sorting rubbish is helpful. We put paper and bottles into the blue bin. We can
1. r them. Food scraps(剩饭) go into the green bin. 2. an easy way to help our Earth!
Last Sunday, I helped my mum sort our rubbish. We filled the blue bin with plastic bottles and cardboard boxes. 3. fast we finished the job! My mum said a lot of rubbish can be made into new things.
Now, I always check the bins at home. 4. a good habit! Remember: Sorting rubbish is the first step to recycling. 5. important it is to do it right! Let's all be sorting experts(专家)!

1. recycle 2. What 3. How 4. What 5. How