牛津版（深圳·广州）八年级上册Unit 4 Inventions单元练习

— Yes, I visited my grandparents in the countryside.

—It is one of ________ that I have ever read.

—In addition, it can ________ rain ________ our bag and our bags can keep dry in the rain.

—Oh, yes, thank you. I'm so ________.

—Yes, I will.

Last weekend, I had a meaningful day. I was going outside to play with my friends when I saw my mother was busy 1housework. She looked so2 and I felt that I should do something to help her. So I 3a decision to share housework with her. My mother was very  4 when she heard that and she let me do some washing. I was washing clothes when my friend Linda called me up and 5 me to play with her. I refused and told her that I was helping my mother do some washing and I couldn't go out with her.

I spent much time washing clothes. Only then did I know it was not easy to wash 6, and how tired my mother was. She not only worked outside, but also did all the housework at home. However, she had 7 complained (抱怨)about it. After washing, 8 I felt tired, I was also proud of myself and my mother praised me. She said that I was a good 9 and that I had grown up, which made me feel very10.

As time goes by, our parents will all grow old and they need more caring from us. If possible, we should share the housework with them, and it will be an unforgettable memory for us.

The son of a soap maker, Benjamin Franklin came into the world on January 17, 1706. There was only enough money for Ben to attend school for two years. At the age of 17, he made his way to Philadelphia. In 1741, the famous Franklin stove was invented by him.

Before Ben's invention of the Franklin stove, people heated their homes with a fire in an open fireplace. Using a fireplace for heating was not good because most of the warm air came up to the chimney (烟囱) and was dangerous because the fire in the fireplace could set the house on fire. Ben built a box-shaped stove for having the fire itself. After the metal warmed up, the heat was out into the room. The Franklin stove used less wood and was a safer way to heat buildings.

What's more, Ben was already interested in electricity. After many years of hard work, he finally had a plan to prove (证明) that lightning was electricity and he was successful at last with his son's help. Although he had many inventions in life, he never kept them himself. He wanted to share them with people all over the world.

My father often repairs his bike himselfsomeone to do it.

you buy ?

I with my teachers by e-mail since I left college.

Now I'm feeling   yesterday.

Jack is Tom.

提示：

1）What is the most useful invention in your opinion?

2）Who invented it?

3）Why do you think it's the most useful one?

4）How does this invention change people's life?

5）What's the most useful invention?