题型:阅读选择 题类: 难易度:普通
广东省深圳市高级中学2024-2025学年秋九年级上学期期中英语试卷
We can do many interesting chemical tests in our class. Today, we will use CO2 to blow up a balloon! Mixing baking soda(小苏打) with vinegar(醋) together can give off the CO2
What you'll need
1)A balloon 2)About 40 ml of water 3)A soft drink bottle 4)Vinegar
5)A teaspoon of baking soda Instructions
Instructions
●Before you begin, make sure that you pull the balloon long to make it as easy as possible to blow up.
●Put the 40 ml of water into the soft drink bottle.
●Add the baking soda and mix it with water.
●Put the vinegar in and quickly put the balloon over the mouth of the bottle.
What's happening?
If all goes well then the balloon should become bigger and bigger! Adding the vinegar to the baking soda creates a chemical effect. The baking soda is a base(碱), while the vinegar is an acid(酸). When the two are mixed, they'll create CO2. The gas rises up and runs away through the soft drink bottle. However, it doesn't get away from the balloon, pushing it outwards and blowing it up.
dangerous kind about different over grass swim catch even favourite |
There are many {#blank#}1{#/blank#}of animals in the world. They come from {#blank#}2{#/blank#}countries. The elephant lives in Africa and in Asia. It eats plants and a lot of fruit. The panda comes from China. It is black and white and it eats{#blank#}3{#/blank#}30 kilos of bamboo a day as well as other plants. It's cute and it is the{#blank#}4{#/blank#} of people all {#blank#}5{#/blank#}the world. The zebra is also black and white, but it doesn't eat bamboo; it eats leaves and {#blank#}6{#/blank#}. The tiger is a(n){#blank#}7{#/blank#}animal, and it lives alone. It likes water and it's good at {#blank#}8{#/blank#}. It's strong enough to {#blank#}9{#/blank#}animals for food. There are about 200 kinds of monkeys in the world. They live in Africa, Asia and America. They eat meat, leaves, fruit and {#blank#}10{#/blank#} eggs.
When we are in the wild, we find that water is important for us to live. There are many ways to get some clean water. For example, if there is fire and enough water, the best way is to boil the water. But in many cases, there doesn't seem to be any safe water available.
Can you think of a way of cleaning dirty water by using the sun? In this activity, you will make a "solar still (太阳能蒸馏器)". Let's get started to make pure water (纯净水)!
Things to prepare:☆a wide plastic basin (塑料盆) ☆a large piece of plastic paper ☆a smaller glass for collecting the clean water ☆a thin string (绳子) ☆salt and stone Steps: ⒈Mix salt with water. Put salty water in your basin. ⒉Put your collecting glass in the middle of your basin. ⒊Cover the basin with the plastic paper. Use a string to seal off the edges (封住边缘). ⒋Place a stone in the middle of the plastic paper just above your collecting glass. ⒌Carefully move the solar still into the sun so that the sun can heat (加热) the salty water and turn it into vapor (水蒸汽). … |
要求:
1.作文要包含表格内容;
2.文中不得出现自己的真实姓名;
3.70词左右,可适当发挥。
①First name | … | ⑤Family | parents, sister |
②Last name | … | ⑥Like | color, Sports |
③Age | … | ⑦Room | … |
④Phone number | … | … |
My New Friend
I come from Lanxi, Zhejiang. I want to tell you a story. {#blank#}1{#/blank#} My father's name is Li Wenwen. He is a big fan of Lei Feng. And he likes collecting old newspapers, too. {#blank#}2{#/blank#} He then got the idea of collecting things about him. My father has many old things about Lei Feng. He not only collects those things but also listens to stories behind them.
{#blank#}3{#/blank#} She asks him to have some exhibitions(展览), so more people can learn from Lei Feng. Now, there is an exhibition room in my house. People can see a lot of old things about Lei Feng in it.
My father wants people to inherit(继承) the spirit(精神) of Lei Feng. {#blank#}4{#/blank#} On Saturdays and Sundays, he often goes to visit a children's home or an old people's home. He always says, "{#blank#}5{#/blank#}" I think my father is great!
A. Helping others makes me happy B. My mother always supports(支持) my father. C. He also likes to give people a helping hand. D. The story is about my father and his love for Lei Feng. E. One day, he found some old newspapers with stories about Lei Feng. |
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