冲刺2021年中考英语题型预测与满分挑战专练05
序号 | 题型 | 拢怎么组词 主题语境 | 公式法因式分解话题 |
1 | 阅读理解 | 旋风人与自然 | 太空种植蔬菜 |
2 | 阅读理解 | 人与社会 | 人体依赖糖的原因 |
3 | 阅读理解 | 人与社会 | 中国的网站的设计风格 |
4 | 完型填空 | 人与社会 | 图书管理员的友好相助 |
5 | 书面表达 | 人与自我 | 如何有效地解决日常生活中阅读的困难 |
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一、阅读理解
1
What will astronauts（宇航员）eat when a space trip takes years?
“Lots of fresh vegetables,” says Dr. Janet Williams, who team have spent the last 10 years learning how to grow plants in a space station. And it’s a good thing that she has already started her work, becau space gardening can be really hard.
As usual, astronaut George White looked into the clod plant room. He had planted Dr. Williams’s quick-growing edlings in it, but none of the stems were showing. He opened the room to check and found the problem. The stems weren’t growing upward and the roots weren't growing downward. On Earth, gravity（重力）helps a plant’s stems and roots to find “up”and “down”. However, in the space station, there was almost no gravity.
Dr. Williams suggested a solution: give the plants more light, as plants also u sunlight to find their way. And it worked. When the plants had more light, the stems turned up and the roots went down.
Now Dr. Williams was free to worry about the next problem:Would her baby plants live to flower? Can we grow food on a space journey?
Many plants died in the space station. Dr. Williams thought she knew why: the space plants were hungry for air. Plants live by taking up CO2 from the air. Since a plant us it up in the air around, the plant needs moving air to bring more CO2 clo to its surface! On Earth, the air is always moving. Gravity pulls down cold air, and warm air ris. And wi
th the air movements, plants get enough CO2光彩夺目是什么意思.
Many earlier experiments with plants in space had ud clod rooms.Dr. Williams tried a new greenhou that had a fan to keep the air move. The plants loved it. They flowered and even produced more eds. Using Dr. Williams's method, astronaut George completed the first ed-to-ed experiment in space, and moved one plant clor to a garden in space.
“And this,” says Dr.Williams, “is good news for long-term space travel.”
1. Why have Dr. Williams’s team tried to grow plants in space?
A. To produce fresh air for astronauts.
B. To help astronauts relax themlves.家庭情况分析
C. To provide food for long space journeys.
D. To make the space garden more beautiful.
2. How did light help solve the problem mentioned in Paragraph 3?
A. It caud the gravity to change.
B. It encouraged the plants to grow faster.
C. It helped the plants to grow in the right direction.
D. It showed the astronauts where to plant vegetables.
3. Why did many plants die in the space station?
A. The light was too strong.
小孩扁桃体发炎B. There was too much CO2.
C. There was not enough room to grow.
D. The air condition was not good enough.
4. The underlined word “it” in Paragraph 7 refers to________.
放烟花简笔画
A. the moving air B. the clod room C. the space journey D. the space garden
5. What can we learn about Dr. Williams’s team from the passage?
女生当兵的条件和要求
A. They mainly live on fresh vegetables.
B. They have successfully built a space garden.
C. They invented a special fan for their greenhou.
D. They have worked on space gardening for many years.
2
Many scientists believe our love of sugar may be an addiction (瘾). When we eat or drink sugary food, the sugar enters our blood and influences parts of our brain that make us feel good. Then the good feeling goes away, leaving us wanting more. All delicious food do this, but sugar has a specially strong effect.
"It ems like every time I study an illness and trace a path to the first cau, I find my way back to sugar," says scientist Richard Johnson. One-third of adults in the world have high blood pressure and up to 347 million have too much sugar in their blood. Why? "Sugar, we believe, is one of the culprits, if not the main culprit," says Johnson.
Early humans often had very little food, so our bodies learned to be very good at storing sugar as fat. In this way, we had energy stored for when there was no food. But today, most people have more than enough. So the very thing that once saved us may now be killing us.
So what is the solution? It’s easy to e that we need to eat less sugar. The trouble is, in today's world, it's very difficult to avoid. More and more foods are filled with it. Some prod
ucers even u sugar to replace taste in foods that are advertid as low in fat. This may make the food appear as healthier, but large amount of sugar are often added.
But there are tho who are fighting back against sugar. Many schools are replacing sugary desrts with healthier food like fruit. Other schools are growing their own food in gardens, or building places for students and others in the community to exerci. The battle has not yet been lost.
