题型:任务型阅读 题类:常考题 难易度:困难
仁爱科普版初中英语2016年九年级上册Unit 1 The Changing World 单元检测题
C
A very important world problem is the growth of population on the earth. The population of the world today is more than 6,500,000,000. That is a great number and we know it quite well. ①The important thing is not how large the population of the world is now, but is the rate(速度) of the growth. It is about 1.63% every year after the number of dead people has been taken away.
To give you some ideas of the birth rate, look at the ②second hand of your watch. Every second, four babies are born in the world. Another baby! Another baby! Another baby! Another baby! ③You can not speak quickly enough to keep up with the rate of the growth of the population. It is growing faster and faster. So it goes on, hour after hour. In one day, people have to find food for about 350,000 mouths more.
This great growth of population will make a big problem by the year 2050 — there will be as many as 7,500,000,000 people on the earth! So this is one of the biggest problems that you are going to meet in your life.
Your speaking rate can not be quick the rate of the growth of the population.
Homework is a problem for students all over the world. As a student, you have a lot of homework to do every day. {#blank#}1{#/blank#}. And it helps you understand important knowledge. Luckily, there're several things you can do to make homework less difficult.
{#blank#}2{#/blank#}. Write your homework down in your notebook if you need to. Don't be afraid to ask questions about it. Understand why you should do your homework.
{#blank#}3{#/blank#}. Many schools have study halls. The students can study there. It's more interesting to play with your friends. But the more homework you finish at school, the less you'll have to do that night at home.
{#blank#}4{#/blank#}. It is difficult to hold your attention for too long. So take some breaks while doing your homework. Taking a 15-minute break every hour is a good idea for most people.
{#blank#}5{#/blank#}. If you don't finish your homework at school, think about how much you have left. It's a good idea to make a homework plan, especially when you want to enjoy sports or other activities.
A. Be sure you understand the homework B. Use some time to do homework at school C. It's the best way to review what you have learned in class D. Make a plan E. Take a break F. It's necessary for you to do more homework at home |
The population of Earth is still going up. There will be less and less good land for growing crops in the future. People worry that there will not be enough food for everyone in the middle of this century.
Recently scientists have discovered one strange plant named fedtschenkoi(玉吊钟)may help. It can absorb(吸收)carbon dioxide(CO₂) at night. It only needs 10 times less water than food plants like beans. This means it can grow in the desert(沙漠).
In which ways could this plant help us?
Since deserts are increasing in size because of the changes in Earth's climate, growing plants there will be more and more important. Although it is dangerous to eat this plant, scientists can still study something about it: how it absorbs CO₂ at night while many other plants only do this during the day, and why it is suited to the desert.
There is another direction to take the research in. Producing a desert plant to eat will be difficult, but there is still possibility to use the genes(基因)from this plant and put them into food plants.
The other way is to grow this type of plant for fuel(燃料). At the moment we grow plants for fuel in good land. If we do it in deserts instead, more good land can be used to grow plants for food.
Desert plants have special qualities, which could be an answer to our future food or energy needs. Scientists are working hard on it.
The Desert Plant Could Help | |
The problems of the future | ◆The population on Earth is becoming {#blank#}1{#/blank#} than before. ◆There is less and less{#blank#}2{#/blank#}land for growing crops. ◆There will not be enough food in the future, which makes people{#blank#}3{#/blank#} |
The discovery of the scientists | ◆It is an{#blank#}4{#/blank#} plant named fedtschenkoi. ◆Food plants like beans need 10 times{#blank#}5{#/blank#} water than it does in deserts. |
The ways it could{#blank#}6{#/blank#} us | ◆The scientists are studying how it absorbs CO₂ and why it is{#blank#}7{#/blank#}for living in desert. ◆It is {#blank#}8{#/blank#}to use genes from one plant and then put it inside another. ◆It will be better if we can grow plants for fuel in deserts {#blank#}9{#/blank#} than in good land. |
Conclusion | ◆Because desert plants have special qualities, it may{#blank#}10{#/blank#}our food and energy problems in the future. |
{#blank#}1{#/blank#}⑴John likes spicy food very much. And he wants to eat it every day. {#blank#}2{#/blank#}⑵Tom likes eating potato chips very much. He thinks it is very delicious. {#blank#}3{#/blank#}⑶Peter likes Chinese food very much. He likes noodles best. He wants to eat many kinds of noodles. {#blank#}4{#/blank#}⑷Daming likes Guangdong food very much. He loves to have meals in a restaurant with the Lingnan culture(文化). {#blank#}5{#/blank#}⑸Amy lives in Shanghai. She likes eating sweet food very much. She eats ice-cream every day. |
A. Lingnan Restaurant Here you can enjoy the Lingnan culture and Guangdong food B. Northeast Noodle Restaurant We have many kinds of Chinese noodles, such as beef noodles, chicken noodles and so on. C. Sichuan Restaurant Sichuan people cook the food. It's really spicy and delicious. D. KFC Here we have hamburgers, salad, chicken, potato chips and other kinds of food for you. E. Dumpling Restaurant Cooks from Harbin make delicious dumplings for you. F. Sweet Food Restaurant Here are many kinds of sweet food, such as ice-cream, cakes, chocolate and so on. G. De Shang Restaurant You can enjoy Guangdong food in our restaurant. There are delicious vegetables and meat. |
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