A recent survey of 2000 parents in Britain showed that they are often afraid of science questions asked by their curious children only because they have no idea what the answer is. Here is a list of some simple questions that you can ask your parents to see if they know the answers.
Q: Why is the sky blue?
A: You probably know white sunlight is made up of seven colors. While it moves in a straight line when going through space, it starts to divide as it hits “raised area” in the atmosphere. The ones with longest wavelengths pass through easily. The blue , however , can be taken in by the gas molecules (分子) because it has a shorter wavelength , which in turn scatters (使分散) it in different directions. That’s why when you look up at the sky, it appears to be blue.
Q:Why does the moon sometimes appear during the daytime?
A: The simple answer to that is because just like any other object it is being lit by the sun. As long as it is around 45 degrees or even 90 degrees off the sun, it will receive light and be able to be seen. The only time it is not able to be seen during its 28-day orbit (轨道) around the earth is when it is right between the earth and the sun. That’s because its back , which is not lit by the sun, is facing us.
Q: Where do birds/ honeybees go in winter?
A: While the bird part is quite easy, since a lot of them get together and travel, the honeybee part is likely to puzzle your parents. It turns out that these busy insects stop being that active when the temperature drops below 50°F. Instead ,they get together in the lower central area of the hive （蜂巢）and form a ball around their queen. This helps keep both warm enough to survive the cold winter months.The sky looks blue mainly because the color blue in the sunlight_______.
| A．has the longest wavelength among all the colors |
| B．cannot be taken in by the gas molecules |
| C．doesn’t hit “raised area” in the atmosphere |
| D．cannot pass through space successfully |
How long can’t the moon be seen during the daytime in a month?
| A．2 | B．28 | C．30 | D．31 |
What do honeybees choose to do when the temperature drops below 50°F?
| A．They choose to be active in the wild. |
| B．They choose to keep themselves warm. |
| C．They choose to travel to a warm place. |
| D．They choose to get together in the upper central area of the hive. |
What is NOT explained in the passage?
| A．Why is the sky blue? |
| B．Why is the moon able to be seen during the daytime? |
| C．Why do birds travel in winter? |
| D．Where do honeybees go in winter? |
A teacher stood in front of his history class of twenty students just before handing out the final exam. His students sat quietly and waited for him to speak.
“It’s been a pleasure teaching you this term,” he said. “You’ve all worked very hard, so I have a pleasant surprise for you. Everyone who chooses not to take the final exam will get a ‘B’ for the course.”
Most of the students jumped out of their seats. They thanked the teacher happily, and walked out of the classroom. Only a few students stayed. The teacher looked at them. “This is your last chance,” he said. “Does anyone else want to leave?” All the students there stayed in their seats and took out their pencils.
The teacher smiled. “Congratulations (祝贺),” he said. “I’m glad to see you believe in yourselves. You all get ‘A’s.”This story most probably took place_______ .
| A．at the beginning of the term |
| B．in the middle of the term |
| C．at the end of the term |
| D．at the beginning of the school year |
Most of the students got Grade ______.
| A．‘A’ | B．‘B’ | C．‘C’ | D．‘F’ |
Why did some students stay in their seats?
| A．Because they wanted to take the exam. |
| B．Because the teacher told them to stay in their class. |
| C．Because they were afraid to leave. |
| D．Because they didn’t have anything to do. |
The teacher gave the students who stayed in the classroom“ A”s because ______.
| A．the teacher liked them |
| B．they were cleverer than the other students |
| C．they believed in themselves |
| D．they studied hard |
The underlined word “them” in Paragraph 3 refers to “______”.
| A．students staying in their seats |
| B．students leaving the classroom |
| C．their seats |
| D．all the students |
China has decided to stop the use of free plastic bags. Supermarkets，shops and outlets(经销店) in China can’t offer plastic bags any more.
Every year，people use too many plastic bags. They throw them here and there after they have used them. The government has done its best to deal with them but failed. While we offer quick service to customers，the plastic bags pollute water，earth and air， and they waste the oil. The government asks people to go back to carry cloth bags and use baskets when they go to buy something. The cloth bags and the baskets can be used again and again.
Many months have passed. The environment has been improved a lot.
| Action |
Make a decision to stop the use of |
| Places |
|
| Advantage |
Offer |
| Disadvantage |
Pollute water,earth and air and |
| What should we do |
Every Saturday, Grandpa and I walk to the nursing home to visit some of the old and sick people there because they can’t take care of themselves. First we visit Mrs. Sokol. I call her “The Cook.” She likes to talk about the time when she was a well-known cook in Russia. People would come from miles, just to taste her chicken soup. Next we visit Mr. Lipman. I call him “The Singer” because he loves to sing for us. Whenever he does, his voice fills the air, clear and full of energy. I also enjoy Mrs. Kagan’s stories about her own experiences during the old days. I call her “The Memory Lady.”
One day Grandpa got very sick and the doctor said they didn’t think he would get better.
It was time to visit the nursing home again. I had to go alone. Everyone was surprised when I told them that my grandpa was ill and in hospital.
A few days later, Grandpa was not able to sit up, eat and even speak. I went to the corner of the room so Grandpa wouldn’t see me cry. Suddenly, I heard someone singing. I looked up. It was The Singer. Behind her were The Cook. and The Memory Lady. The Cook brought her famous homemade chicken soup. The Memory Lady held Grandpa’s hand and told us how Grandpa once came to visit her in a snowstorm, just to bring her some roses for her birthday.
Before I realized it, visiting hours were up. That evening, Grandpa called the nurse in and said he was hungry. Soon he began to sit up. Finally he was able to get out of bed. It is really a miracle (奇迹), isn’t it?Why did the writer and his grandpa go to the nursing home every Saturday?
_________________________________________________Who were Grandpa’s good friends in the nursing home?
__________________________________________________Why did the writer cry? __________________________________________
What did The Cook bring?_________________________________________
Grandpa is very kind and warm-hearted,isn’t he? _______________________
Do you know how to play a game called “Musical Chairs”? It is easy to play and most people enjoy it. All you need are some chairs， some people and some way of making music. You may use a piano or any other musical instrument，if someone can play it. You may use a tape recorder. You can even use a radio.
Put the chairs in a row. The chairs may be put in twos，back to back. A better way is to have the chairs in one row with each chair facing in the opposite direction to the chair next to it.The game is easy. When the music starts，the players walk round the chairs. Everyone goes in the same direction，of course，they should walk in time to the music. If the music is fast they should walk quickly. If the music is slow，they should walk slowly.
The person playing music cannot see the people in the game. When the music stops， the players try to sit on the chairs. If a person cannot find a chair to sit on， he drops out. 102.Then，before the music starts again，one chair must be taken away. When the music stops again，one more player will be out.
At last， there will be two players and one chair. 103.The one who sits on the chair when the music stops is the winner._______________________________________________________
________________________________________________________
An old lady in a plane had a blanket（毯子）over her head and she did not want to take it off . The air hostess spoke to her, but the old lady said, “I have never been in a plane before , and I am frightened. I am going to keep this blanket over my head until we are back on the ground again !”
Then the captain came. He said, “Madam, I am the captain of this plane. The weather is fine, there are no clouds in the sky, and everything is going very well. ”But she continued to hide.
So the captain turned and started to go back. Then the old lady looked out from under the blanket with one eye and said, “I am sorry, young man, but I don’t like planes and I am never going to fly again. But I’ll say one thing, ”She continued kindly, “You and your wife keep your plane very clean!” An old lady had _________ .
| A．glasses | B．a blanket over her head |
| C．a coat | D．a basket |
She didn’t want to ________ .
| A．take it off | B．turn it of |
| C．get on | D．talk about it |
_________ spoke to her .
| A．The air hostess | B．The man next to her |
| C．Her husband | D．One of her friends |
The old lady had never been _________ before .
| A．abroad | B．home |
| C．in a plane | D．in hospital |
The woman didn’t like planes and she was never going ________ .
| A．to fly again | B．to travel |
| C．to go abroad | D．to go home |
粤公网安备 44130202000953号