A. Best wishes B. Have fun

C. Take care D. No problem

A. put it away B. put them away D. put away them

A. send B. provide C. offer D. catch

A. alive B. lively

C. boring D. lonely

----- She is fine.

A. Where B. How C. What

---Yes，she does. I think she should go to________ hospital.

A. an；/ B. a; the C. /; a D. the; an

【題目】

What do you do if you are in trouble on a lonely island? Surely you need to find a way to get in touch with the outside world. Your best chance of doing this is to draw the attention of a passing plane.

Body signals

Pilots from different countries understand body signals if they have the correct training. When you wave your arms up and down in a straight line, it means “yes”. When you point downwards and swing your arm from side to side, it means “no”. If you want the pilot to know that it’s safe to land, push your hands in front of you and bend your knees. If you want to say it’s not safe to land, put your arms in the air and move them to one side.

Smoke signals

The smoke from a fire can be seen from far away, so it’s a good way to draw attention. If the weather is dry, it isn’t hard to start a fire. Remember, however, the fires can be very dangerous if they get out of control. Never light a fire unless you are sure that it can’t spread. If the ground is dark, light smoke can be seen more easily. Green grass and leaves produce light smoke.

Ground-to-air signals

It’s a good idea to build some signals, too. Use large pieces of wood to make the symbols. If you can’t find any wood, use earth. Some useful symbols are：

F “I need food and water.”

II “I need medicine.”

I “I am badly hurt.”

X “I am unable to move from here.”

Pilots’ replies

If the pilot lowers the plane’s wings from side to side, this means “message received and understood”. (At night, the pilot flashes the plane’s green lights.) If the pilot flies the plane in a clockwise (順時針方向的) circle, this means “message received but not understood”. (At night, the pilot flashes the plane’s red lights.)

However, there is no signal which means “message not received”．

【1】Which picture means “it’s safe to land”？

A.B.C.D.

【2】What can you use to build Ground-to-air signals on a lonely island?

A.Wood or earth.B.Grass and leaves.C.Wood and leaves.D.Sand or grass.

【3】What is the passage mainly about?

A.The explanation of body signals on an island.

B.The importance of making signals on an island.

C.Ways of living on a lonely island.

D.Ways of sending out signals on a lonely island.

Artificial intelligence(AI in short人工智能) can give computers and machines ability(能力) to think and work like humans. AI scientists and engineers have made much progress in this field.

Facial Recognition

AI is rapidly catching up with the human ability to read faces. Facial recognition(識別) is used widely in the world. Chinese police use this technology to identify(認(rèn)出) criminals(罪犯). They had caught about 50 criminals at Zhang Xueyou's concerts by October, 2018. It also checks the ID of ride-hailing(網(wǎng)約車) drivers and lets people pay for things with a smile.

Self-driving Cars

Most drivers may wave or nod at passers-by(路人，行人) to let them cross the street, but self-driving cars don’t have this ability. Car makers are testing(測試) a light signal system(燈管信號系 統(tǒng)) to help them “speak” to humans. For example, if a driverless(無人駕駛) car is yielding(讓路), it will flash two white lights side to side. A rapidly flashing light tells passers-by that the car is about to speed up(加速).

Service Robots

Imagine this—you come back home from school, and your robot housekeeper is waiting for you at the door. After dinner, he teaches you to play the piano, just like a real music teacher. Such thoughts will soon happen in the real world. In the future, more and more service robots will become good home helpers.

AI is so powerful that it can help human beings and even replace us in many jobs.

【1】According to the passage, what is facial recognition used for?

A.Driving cars.B.Making people smile.

C.Calling the police.D.Checking people’s information.

【2】Which technology has been used in real life according to the passage?

A.Service Robots at school.B.Robots as ride-hailing drivers.

C.Facial recognition for payment.D.Light signals for self-driving cars.

【3】 play(s) an important role in catching criminals.

A.Zhang XueyouB.Service robots

C.Self-driving car makersD.Artificial intelligence

【4】What can we learn from the passage?

A.People use AI in many different ways.

B.AI will take the place of(代替) human beings in all jobs.

C.Self-driving cars will be able to talk like humans.

D.Criminals were caught for inventing facial recognition.

---- Yes, I am.

A. Hi B. Excuse me C. excuse me

A.It’s a pencil B. It’s red

C. It’s map D. It map.