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An Experiment Report on Growing Potato Plants
Things prepared：
a potato that has sprouts
a flower pot with soil
a camera to record progress
Observation：
Day One
The color of the soil looks darker because I have just watered it. In the center of the pot, I can see a tiny sprout that has grown from the potato under the soil. I’ll call it Buddy. Buddy is green and yellow. I wonder how fast it will grow.
Day six
Without much change in the past six days, I finally see some new progress on Buddy as it has grown taller. It’s exciting to see new life like this. I hope Buddy can grow faster.
Day Eleven
Buddy is getting larger! Three more new sprouts have grown around Buddy! Green leaves have grown on the new sprouts, but they have not fully grown yet. I guess I need to be a bit more patient.
Day Thirteen
Buddy continues to grow taller. The leaves on the new sprouts have grown a bit. I’m also excited to see more new sprouts that have grown from under the soil.
Day Fifteen
Finally, the leaves on the other sprouts are 3 cm tall. They’re so green. I hope they will soon grow into new potatoes.
What I have learned
It’s really interesting to grow potatoes. During these fifteen days, I have learned that growing potato plants needs plenty of water. If soil is dry, the potato will fail to grow. I have also learned that the temperature needs to be right. If it is too cold, it won’t grow.
I feel that growing plants is just like trying to succeed with anything in life it takes not only time, but also lots of efforts and patience.
1.The reading material is an experiment report about ________.
A.chemistry B.physics C.biology
2.How many things did the writer prepare before her experiment?
A.Three. B.Five. C.Seven.
3.How did the writer feel when she saw the progress of the potato plants?
A.Excited. B.Nervous. C.Surprised.
4.What can we know from the writer’s experiment report?
A.“Buddy” grew very fast in the first six days.
B.Plenty of water is necessary for growing potato plants.
C.The writer got new potatoes on the fifteenth day of the experiment.
5.What has the writer learned from the experiment?
A.Old habits die hard.
B.Rome wasn’t built in one day.
C.Knowledge comes from questioning.
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A new report says African governments are ill prepared to handle the growing number of people over age 65. The population in Africa as in other parts of the world, is getting older. Currently, there are 36 million people on the continent 65 years and above. which is 3.6 percent of the population. up from 3.3 percent 10 years ago. That could rise to 4.5 percent by 2030 and 10 percent by 2050. The African development Bank is raising concerns over the shortage of health insurance and pensions (养老金).
The African Development Bank says. "Aging is highly linked with long-term physical and mental disability and a number of long-term chronic (慢性的) conditions."
"Africa is not well prepared to care for its aging population right now. And it needs to prepare for this fact." said Professor Mthuli Ncube. the African Development Bank's chief economist. African nations spend far less on healthcare than developed nations do___ about $26per person per year. Not so many countries have well developed medical aid plans for the elderly, whether they are privately provided plans or indeed government plans. If you look at the pension plans, you will find the pension industries are not well developed in some of the countries.
Professor Mthuli Ncube said African governments failed to take action on health insurance
and pensions because they were busy with economic reforms.
Another challenge for Africa is the worsening of informal systems of social protection. That is cash and support from both the extended family and community sources.
. The African Development Bank recommends governments help carry out health insurance and pension plans. Ncube said African governments didn't have to handle the health insurance burden alone. "It is not only a must but also an opportunity for private companies to add their bit in this regard", he said. The report also recommends that African governments consider providing ways of free health services. medications and long-term health care facilities for the elderly.
1. From the first paragraph we know the facts except that ____
A．the speed of people aging is becoming quicker
B．Africa has the largest aging population
C．African governments are not well prepared to deal with the aging population
D．the shortage of health insurance and pensions adds to African governments' difficulty in dealing With the aging population
2.Which is not highly linked with the aging according to the passage?
A．Long-term physical disability.
B．Long-term mental disability.
C．Long-term chronic illnesses.
D．Long-term shortage of care and love.
3. What got in the way of developing health insurance and pensions in Africa?
A．The economic reforms.
B．Too many old people.
C．The shortage of land.
D．The development of the economy.
4.How can the aging problem be solved in Africa according to Ncube?
A．African governments should spend as much money on healthcare as developed countries
B．African people should save enough money to insure their health.
C．African governments should combine with private companies to finish health insurance and pension pains.
D．Private sources should take the main responsibility to help the elderly.
5.The article is most likely to be seen____
A．in a story book B．in a newspaper
C．on a TV program D．in a textbook
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Here is an experiment (实验) to see how ants can organize some clever teamwork.
What’s going on?
You can see one of the best examples of insect teamwork by watching ants. If one ant finds food, it leads others there to eat it too. They follow each other by making long trails. The ants go back and forth collecting food, to take back to their nest (穴). When you move the fruit, the ants will still find it. But, instead of making a new direct route (路线) to the food, they will follow each other through their old trail route.
1.What will happen if one ant finds food?
A. The ant will eat all the food. B. The ant will watch other ants.
C. The ant will lead others to the food. D. The ant will wait until others come.
2.If the fruit is moved to a new position, the ants will ________.
A. rail to find it B. give up looking for it
C. make a new direct route to it D. get to it through the old trail route
3.Which is the correct order to do this experiment?
a. Move the fruit to a new position.
b. Find an ant.
c. Check the fruit an hour later.
d. Put a thin slice of fruit in front of the ant.
A. a-b-c-d B. b-d-c-a C. d-b-c-a D. c-a-d-b
4.What can we learn from this experiment?
A. The experiment is done successfully in the lab.
B. Ants do the experiment to show their team spirit.
C. Careful watching does little help in this experiment.
D. We can find out some facts by doing small experiments.
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It seems to be strange to you there is a blind spot on the eyes. Here is an interesting experiment that can make something disappear, when one eye is open.
Make a card about the size of a postcard and write two English letters L and R on it, L on the left and R on the right. First, hold the card about 80 cm away and you see both the letters. Then close your right eye and look at the letter R only with your left eye. And now, as you move the card slowly towards you, you’ll find the letter L disappearing. But if you move the card nearer to your face, the letter will be seen again. Now do the same experiment with your left eye closed, you’ll find the letter R disappearing.
Why does the letter disappear? It is because there is a blind spot on the eye. When the image (影像) of the letter falls on the blind spot, it won’t be seen. That is why either of the letters disappears.
1.The writer of the passage thinks that _____ there is a blind spot on the eye.
A. few people know B. no one knows
C. most people know D. all the people know
2.“a blind spot” in the passage means ________ in Chinese.
A.污点 B. 消散 C. 盲点 D. 遗失
3.You fail to see the letter L in the experiment because ___________.
A. your eyes are poor
B. its image falls on the blind spot
C. your left eye is not open
D. you move it close to your eye
4.The passage mainly (主要) tells us _______.
A. how to find the blind spot
B. an interesting experiment
C. where the blind spot is
D. there is blind spot on the eye
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Everything grows during spring, because the weather gets warmer and warmer. Wind blows gently. The sun rises earlier 1. the morning.
I planted a potato that had sprouted in a flower pot with soil when I was young. After several days, the stem 2. getting larger. Three more new buds grew around the stem. Green leaves grew on the new stems. Finally, the leaves on the other stems were 3cm tall. They were so green 3.I hoped they would soon grow into new potatoes.
During the days, I have learned that growing potatoes needs plenty of water. It also needs sunlight because a plant can make food only when the sun is shining.4. the soil is dry, the potato will fail to grow. I have also learned that the temperature is neither too high nor too low.
5. really pleasant to watch a plant grow.
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According to an official report on youth violence（暴力）, “The greatest danger to the lives of children is not disease or food shortage, but violence”. Why aren’t students taught to manage conflict（冲突）the way they are taught to solve math problems, drive cars, or stay physically fit?
First of all, students need to realize that conflict is unavoidable. A report on violence among middle school students shows that most violence between students begin with small things. For example, a fight could start over the fact that one student eats a peanut butter sandwich each lunchtime. Laughter over the sandwich can then lead to a fight. The problem isn’t in the sandwich, but in the way students deal with the conflict.
Once students realize that conflict is unavoidable, they can practice the golden rule of staying calm（平静的）. Once the student feels calmer, he or she should choose words that will calm the other person down as well. Rude words only make things worse. On the other hand, soft words can put out the fire before it is out of control.
After both sides have calmed down, they can use another key way to help: listening. Listening allows the two sides to understand each other. One person should describe his or her side, and the other person should listen without getting in a word. Afterwards, the listener can ask some questions to make the speaker’s position clear. Then the two people should change roles.
Finally, students need to consider what they are hearing. This doesn’t mean trying to work out what’s wrong with the other person. It means understanding what both sides are trying to deal with. For example, a shouting match over a peanut butter sandwich might happen because one person thinks the other person is unwilling to try new things. Students need to ask themselves questions such as these: How did this start? What do I really want? What am I afraid of? As the problem becomes clearer, the conflict often simply becomes smaller.
There will always be conflict in schools, but that doesn’t mean there needs to be violence. Learning to resolve conflicts can help students deal with friends, teachers, parents and coworkers. In that way, conflict resolution（解决）is a basic life skill that should be taught in schools across the country.
1.What is the passage mainly about?
A. The lives of school children.
B. The causes of fights in schools.
C. How to explain youth violence.
D. How to deal with school conflicts.
2.What can we learn from Paragraph 2?
A. A small conflict can lead to violence.
B. Students seem to lose their temper easily.
C. Violence is more likely to happen at lunchtime.
D. The eating habit of a student often causes a fight.
3.Why do students need to ask themselves the questions in Paragraph 5?
A. To make clear what the real problem is.
B. To find out who should take responsibility.
C. To show more considerations for both sides.
D. To work out how to stop the shouting match.
4.What’s the writer’s purpose for writing this passage?
A. To tell the latest studies on school violence.
B. To teach students different skills for school life.
C. To describe some problems in school education.
D. To suggest teaching conflict management in schools
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In our school, there _____ a number of books on science and the number of them ___ growing larger and larger.
A. is; are B. are; is C. is; is D. are; are
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Do you write a report_______ an animal _______ danger for the club?
A. about; on B. on; in C. to; from D. in; with
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There is an ________(最新的) report on this hot topic, you can pay attention to it.
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—Do you often watch Man and Nature or Sports Report on TV?
—____________. I like sports. It’s an interesting program.
A.Yes, I do B.Man and Nature C.Sports Reports. D.No, I don’t