题目内容

Do you have a smartphone? Do you like to talk on the smartphone? If you do, please allow me to give you some _________on how to behave when you use your smartphone.

The first point is loudness. When you talk on your smartphone in public, please don't shout. In fact, the microphones in smartphones are very sensitive(灵敏的).So you can be heard even if you speak ___________.

Another point is about personal space. I don't think it is polite to make calls in small spaces full of people. This makes others uncomfortable and forces them to_______ your personal business.

Lastly, doing two things at the same time is_______. For example, making calls while driving is a bad habit. Pay attention to the road! Similarly, when staying with your friends, _________your smartphone and enjoy staying with them.

1.A.advice B.opinions C.information

2.A.loudly B.quietly C.silently

3.A.deal with B.think about C.listen to

4.A.dangerous B.wise C.general

5.A.turn down B.turn off C.turn on

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Butterflies are some of the most beautiful insects in the world. However, what interests the scientists most is not their fascinating looks, but how they sense nature. They use their senses of sight, touch, hearing, smell and taste to find food, lay eggs in good places and avoid hungry enemies.

Butterflies have large compound(复合的) eyes. No matter where the things are, they can see them without turning their heads. 1. They are more possible to notice a sea of flowers than a single plant. Butterflies do not "see” colors. They are color blind. 2.The light on many flowers guides butterflies to honey.

How do butterflies smell? Butterflies have a very well-developed sense of smell, but it is not in their noses, since they don't have one. Sense organs (器官)are in their feet, and many other parts of the body.3.

Do butterflies use their mouths to taste the food they find? Not really. Butterflies' feet have sense organs that can taste the sugar in flower honey. They let the butterflies know if there is something delicious. 4.They feed their babies using a long tube(管道),and they get all their food from this tube as well.

Butterflies don't have ears. Instead, they “hear" sounds through their wings by sensing changes in sound vibrations(震动).Butterflies' body is covered with sensory hairs. 5..For example, the hairs give butterflies information about the wind when they're flying. And where there is rain, the hairs can also tell butterflies.

The scientists say that butterflies may have senses we don't even know about yet, because their body is very different from ours. Therefore, it is difficult to understand when we use our own human senses to study it.

A. Like most insects, butterflies are very nearsighted.

B. They can let butterflies feel the environment around.

C. So it is not difficult for butterflies to find flower honey.

D. But they can sense sunlight, which tells them the direction.

E. They can help butterflies find their favorite flower honey food.

F. Some female butterflies taste the plants carefully to find places to lay eggs.

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