【题目】根据短文理解,选择正确答案。
In some science fiction movies, evil robots refuse to die, no matter how hard people fight back.
Now science fiction has become science fact. For the first time, scientists have made a robot that can take a beating (挨打) and keep on going. Scientists from Cornell University made the robot, which looks like a spider with four legs.
Until now, even the most advanced (先进的) robot was almost certain to break down when it was damaged. That is because its computer inside simply doesn't know how to make the machine work after its shape has changed.
To deal with this problem, the scientists put eight motors (发动机) and two sensors (传感器) that read how the machine is working. They all give signals to the machine's software. Using this information, the computer can then figure out the machine's shape at any moment.
The new technology is a big advance in robot-making, scientists say, and it's far from scary. It may someday help scientists create better artificial (假的) arms and legs and give new freedom to people who lose them. It might also help scientists understand how people and animals figure out their own sense of place in space.
“It has been difficult to design robots that can work well when the environment changes or when it's damaged,” says Olaf Sporns of Indiana University in US. “With this work, we are nearer to solving this problem.”
(1)Why do robots easily break down when they are damaged?
A.They cannot repair themselves.
B.The computer has changed a lot.
C.They have no computers inside.
D.The computer cannot work if the robot changes.
(2)The new technology allows the robot to _________.
A.do house work for humans
B.keep working after being damaged
C.remember a lot of information
D.tell people where it is
(3)The underlined word “them” in Paragraph 5 refers to ________.
A.sensors
B.robots
C.arms and legs
D.scientists
(4)How do the sensors in the robot work?
A.They can replace the computer when it's broken.
B.They can find out where the damage comes from.
C.They help the computer learn the robot's condition.
D.They can send signals to the person who uses the robot.

【题目】根据短文理解,选择正确答案。
On a hot day,it can be hard to know what to do to feel good.
Playing in water is one way to feel cooler.Taking a cool bath or a shower can feel really good on a hot day.
It is also important for us to drink water.If you feel thirsty,you should drink water immediately.On hot days,you can lose about 16 glasses of water in one day,so many doctors advise that you should try to drink at least that much every day.Mixing a little fruit juice into your water is a fun way to help you drink plenty of water.
The food we eat also makes a difference in how we feel in the heat.Cold food,such as ice cream and drinks with some ice,can cool down our bodies.However, eating spicy (辛辣的) food makes our bodies even warmer.
The clothes we wear can help us feel cooler as well.Light-coloured,light-weight clothes feel cooler in the sun than dark,heavy ones.Loose (宽松的) clothes are more comfortable in the heat than tight (紧身的) ones.
Even though it is not healthy to run around during the hottest time of the day, that doesn't mean a hot day is not fun! You can read stories in your room.You can also paint or draw without moving your body too much.These are just some of many cool things to do on a hot day.
(1)How much water do we need in one hot day?
A.Only 16 glasses of water.
B.Less than 16 glasses of water.
C.At least 16 glasses of water.
D.As much as possible.
(2)What can't you do on a hot day if you want to feel good?
A.Read a book.
B.Eat ice cream.
C.Swim in the poo1.
D.Eat spicy food.
(3)What kind of clothes can help us feel cooler on a hot day?
A.Loose clothes.
B.Dark clothes
C.Tight clothes.
D.Heavy clothes.
(4)What's the main idea of the passage?
A.A hot day is fun.
B.Entertainments on hot days.
C.We don't know what to do on a hot day.
D.There are many things to do to feel good on a hot day.

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