题目内容
As we have learned English for 4 years, now we find________ not any more so hard to learn English well.
- A.it
- B.that
- C.us
- D.one
We may laugh at home robot today, but some day they may see and hear better than humans do. We humans can only see certain wavelengths(波长) of light, and hear certain sounds. That’s because the abilities of our eyes and ears are limited. Robots, however, need not have the same limits as we have. Robot may also be equipped with devices that pick up information humans can’t. To understand what their sensing devices(传感器) pick up is a hard job. Remember, man—made brains handle(处理)information, including all kinds of data, as zeroes and ones. Imagine the difficulty in trying to explain to a robot what a football looks like—using only zeroes and ones.
【小题1】 From the passage, we can see that factory robots _________.
| A.help to improve other types of robots |
| B.are most active in industrial revolution |
| C.are playing a more important role than other types of robots |
| D.are the tallest type among robots |
| A.more widely used than factory robots |
| B.less common than factory robots |
| C.capable of doing any kind of housework |
| D.free from making mistakes while performing(执行) duties |
| A.They do not have so many limits as humans do. |
| B.They have man-made brains. |
| C.They may be equipped with a special kind of sensing device. |
| D.They handle information by using zeroes and ones. |
| A.science and technology are developing fast |
| B.people are interested in new inventions |
| C.machines are more capable than humans |
| D.robots can be very interesting |
| A.are better than human in seeing and hearing |
| B.are as capable as those in Star Wars |
| C.can pick up objects more quickly than humans |
| D.sometimes perform wrong actions |
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Should we be afraid of sharks? Maybe not. New research into the reasons for shark attacks (攻击) suggests that sharks don’t like the way humans taste! In fact, most people who are attacked by the shark are still alive after receiving only one bite (咬). Why is this?
There are many opinions to explain why sharks sometimes attack people. One opinion is that sharks are just curious (好奇的). We know that sharks are the strongest animals in their environment, so they are not afraid of anything. Naturally, that means they are curious when they meet something unusual. Because they don’t have hands or feet., the only way they can find out an object is to bite it! It is thought that sharks sometimes bite humans for this reason, and then swim away.
Scientists also say that sharks would not waste energy trying to eat a human, as we have a lot of bones (骨头). It is hard for a shark to eat us because sharks don’t have hands, and they can’t pull the meat off our bones. Maybe that’s why they only bite us once. Unluckily, one bite from a large shark is serious enough to hurt people greatly!
Another opinion is that sharks attack humans by mistake. Some sharks may sometimes mistake humans for a seal. An example of this is when a shark attack attacks a surfer. A surfer lying on a surfboard looks like a seal when seen from below. Sharks like seals because they have thick fat.
Whatever the reason for shark attacks on humans, sharks should be afraid of us. Sadly, we kill almost 40 million of them each year.
【小题1】What happens to people attacked by sharks?
| A.Most of them because blind. | B.Most of them because of deaf. |
| C.Most of them died. | D.Most of them are still alive. |
| A.By biting. | B.By smelling. |
| C.By touching. | D.By killing. |
| A.Sharks pull meat off bones when they eat. |
| B.Sharks might mistake humans for seals. |
| C.Sharks like to attack surfers because of their thick fat. |
| D.One bite from a shark is nothing serious. |
| A.To tell surfers to stay away from sharks. |
| B.To ask people to stop killing sharks. |
| C.To let us know the reasons for shark attacks on people. |
| D.To show that humans are much stronger than sharks. |
Not long ago, the only time you could see a robot was when you were reading a novel or watching a movie such as Star Wars (星球大战) . Today, however, a lot of things in science stories have been science facts. Robots are starting to appear in our everyday lives. These robots have different sizes, shapes, and colors. But they all have the same type of man-made “brain”. Leading the robot revolution (革命)are industrial(企业) robots that work in factories. Industrial(工业) robots can do different kinds of jobs that are often boring and sometimes dangerous. Robots are also coming to American homes, though not as quickly as they are entering factories. These robots aren’t as friendly and bright as those you saw in Star Wars. But, their makers say, today’s home robots “walk”, sense objects(感知物体) in their way (and sometimes knock into them), and even carry objects (which they sometimes drop). Well, nobody is perfect.
We may laugh at home robot today, but some day they may see and hear better than humans do. We humans can only see certain wavelengths(波长) of light, and hear certain sounds. That’s because the abilities of our eyes and ears are limited. Robots, however, need not have the same limits as we have. Robot may also be equipped with devices that pick up information humans can’t. To understand what their sensing devices(传感器) pick up is a hard job. Remember, man—made brains handle(处理)information, including all kinds of data, as zeroes and ones. Imagine the difficulty in trying to explain to a robot what a football looks like—using only zeroes and ones.
【小题1】 From the passage, we can see that factory robots _________.
| A.help to improve other types of robots |
| B.are most active in industrial revolution |
| C.are playing a more important role than other types of robots |
| D.are the tallest type among robots |
| A.more widely used than factory robots |
| B.less common than factory robots |
| C.capable of doing any kind of housework |
| D.free from making mistakes while performing(执行) duties |
| A.They do not have so many limits as humans do. |
| B.They have man-made brains. |
| C.They may be equipped with a special kind of sensing device. |
| D.They handle information by using zeroes and ones. |
| A.science and technology are developing fast |
| B.people are interested in new inventions |
| C.machines are more capable than humans |
| D.robots can be very interesting |
| A.are better than human in seeing and hearing |
| B.are as capable as those in Star Wars |
| C.can pick up objects more quickly than humans |
| D.sometimes perform wrong actions |