Everyone wants to reduce pollution. But pollution problem is as complicated as it is serious. It is complicated because much pollution is caused by things that benefit people. For example, exhaust from automobiles causes a large percentage of all air pollution. But automobiles provide transportation for millions of people. Factories discharge much of the material which pollutes the air and water, but factories give employment to a large number of people. Too much fertilizer or pesticide can ruin soil, but fertilizers and pesticide are important aids to the growing of crops. Thus, to end or reduce pollution immediately, people would have to stop using many things that benefit them. Most people do not want to do that, of course. But pollution can be gradually reduced in several ways.

Answer the questions:

Why is the pollution problem complicated?

Rewrite the sentences, using words in brackets

The boy is standing near the tree. He is my brother. (who)

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The flowers are rose. I bought them for my mother. (which)

Rewrite the sentences, using words in brackets

Why don’t we go to school by bike instead of motorbike to save energy? (I suggest)

Rewrite the sentences, using words in brackets

Why don’t we go to school by bike instead of motorbike to save energy? (I suggest)

Rewrite the sentences, using words in brackets

They decided to go out. It rained heavily. (Although)

Read the paragraph, then answer the questions

One of the festivals in the Buddhist tradition is called Vesak. It takes place in April or May, and it lasts for three days. The festival celebrates the life of Buddha, and it also marks the beginning of the Buddhist year. During the festival, Buddhists decorate their houses and streets with flowers and paper lanterns. They give presents to monks and to poor people, and they send each other cards. In India, they sometimes buy birds in cages and set them free.

Do monks and poor people receive presents during Vesak?

Read the paragraph, then answer the questions

One of the festivals in the Buddhist tradition is called Vesak. It takes place in April or May, and it lasts for three days. The festival celebrates the life of Buddha, and it also marks the beginning of the Buddhist year. During the festival, Buddhists decorate their houses and streets with flowers and paper lanterns. They give presents to monks and to poor people, and they send each other cards. In India, they sometimes buy birds in cages and set them free.

How long does Vesak last?

Read the paragraph, then answer the questions

One of the festivals in the Buddhist tradition is called Vesak. It takes place in April or May, and it lasts for three days. The festival celebrates the life of Buddha, and it also marks the beginning of the Buddhist year. During the festival, Buddhists decorate their houses and streets with flowers and paper lanterns. They give presents to monks and to poor people, and they send each other cards. In India, they sometimes buy birds in cages and set them free.

When is Vesak celebrated?

Read the paragraph, then answer the questions

One of the festivals in the Buddhist tradition is called Vesak. It takes place in April or May, and it lasts for three days. The festival celebrates the life of Buddha, and it also marks the beginning of the Buddhist year. During the festival, Buddhists decorate their houses and streets with flowers and paper lanterns. They give presents to monks and to poor people, and they send each other cards. In India, they sometimes buy birds in cages and set them free.

What is Vesak?

Next year, my father (repair) ________________the house.