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—No, I can't see ______.?
B. in; a?
C. on; some
D .in; some?
—No, I can't see___________.
B.in;a
C.on;some
D.in;some
Wing Suits
The suit can make your dream of flying like a bird come true. Well, not exactly flying, but gliding（滑翔）through the air. Fliers wearing wing suits can glide one kilometer in about 30 seconds. But they need a parachute（降落伞）to make a safe landing because the suit does not allow you to slow down.
Talk Gloves
Do you often feel confused（困惑的）by the sign language used by disabled people? Here is the “helping hand” you need. Four students in Ukrainian college have invented a pair of gloves that helps people who has hearing and speech problems to communicate with others. The gloves are set with sensors（传感器）that receive sign language and translate it into text on a smart phone. Then the smart phone changes the text to spoken.
Google Glasses
In short, Google Glasses are like a computer which is built into a pair of glasses. The glasses allow you to surf the Internet and make phone calls without even lifting a finger. All you have to do is to let your head move the mouse on the screen. The glasses also have a camera and GPS mapping system. Users can take and share photos, video-chat, check maps and surf the Internet just by looking up, down, left and right. But now they are on sale only in two countries, German and America.
小题1:Through the Talk Gloves, the sign words are translated for__________.
| A．trained people | B．disabled people | C．normal people | D．old people |
| A．By lifting the hands. | B．By using the keyboard. |
| C．By using the mouse. | D．By moving the eyeballs. |
| A．Now people can buy Google Glasses in China. |
| B．People need a parachute to fly besides a wing suit. |
| C．Wing Suits can make you fly one kilometer in 30 minutes. |
| D．Talk Gloves include sensors, a smart phone and glasses. |
| A．To draw people’s attention to the Year 2012. |
| B．To bring some pleasure to readers. |
| C．To introduce some interesting inventions. |
| D．To ask people to buy these products. |
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.
1.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
2.How long can’t the moon be seen during the daytime in a month?
A. 2 B. 28 C.30 D. 31
3.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.
4.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?
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