Living near the ocean is good for health, but not a luxury all can afford. But those who can, certainly gain a lot of health benefits over common inland folks.

● 【小题1】 As we know, because people living near a coast get enough time to swim in the seawater, they naturally tend to be stronger. Physicians have been recommending visits to coasts that specialize in providing seawater cleansing treatment, which improves the immune system.

● Living near the ocean promotes physical activity. The seashore encourages outdoor activities like jogging on the sand, beach volleyball, scuba-diving, surfing, etc .【小题2】

● Fresh air helps get sleep. Fresh ocean air is composed of negatively charged ions that enable us to consume oxygen, adding to good health. These ions also aid in balancing the serotonin (血清素) level, which helps in feeling more relaxed. 【小题3】 Little by little, this leads to better sleep after spending a large amount of time near the ocean.

● Living near the ocean can help you absorb more vitamin

A．

【小题4】 Thus, natural sunlight, along with the sunrays which bounce back from the sand and the ocean, is an excellent supply for our everyday need for vitamin

A． ● Living near the ocean is helpful in meditation (冥想).

【小题5】 It helps the mind jolt (摇动) free from all worries of the past or the future. We get totally tuned into the present, and become calm, as we listen to the gradual rise and fall of the waves.

A．People living near a coast are healthier.

B．Sunshine is a major source of vitamin D.

C．How will living near the ocean help improve your health? D. Just sit near the seashore and observe the waves moving back and forth.

D．This serves in leading an active lifestyle for people living near or on beaches.

E．Vitamin D helps you absorb calcium, maintaining a normal immune system.

F．Besides, when you listen to the sound of waves, it relaxes the mind to a very calm state.

   Before I studied psychology，I used to think that people would laugh when funny things occurred. While I was right about that，I discovered there are lots of other psychological reasons that make people laugh other than the funny part of a joke. When someone laughs at a joke，there will usually be more than one reason that makes him laugh-and the more reasons there are，the more powerful the joke will be.

I was attending a stand-up comedy show in Egypt，and when the man started to make fun of pedestrians crossing streets，everyone laughed their head off. The main reason why those people strongly laughed was that almost all of them felt angry with pedestrians who crossed streets carelessly. The joke wasn't only funny，it also made the audience feel that they were right about being angry at those pedestrians. That is，people were laughing because of both the funny joke and the happiness experienced as a result of the psychological support they got.

The better a joke makes a person feel，the more it includes other psychological factors，and the more the person will like it. For example，if you envy one of your friends，and someone tells a joke that is funny and，at the same time，makes your friend seem stupid，then you will probably laugh at it louder than if you weren't jealous（嫉妒的）of him.

In short, we not only laugh when we hear something funny, but also laugh when we experience some kind of happiness that results from the other psychological factors involved in the joke. I strongly discourage making fun of anyone or belittling someone to make someone else laugh. All I want to explain is that if your joke supports a person's emotions, he will certainly like it a lot.

【小题1】What did the author find out after studying psychology?

A．Only good jokes make people laugh.

B．Many reasons lead to people laughing.

C．Funny things can make people laugh.

D．Laughter can make people healthy.

【小题2】Why did the audience laugh at the pedestrians?

A．Because they played a trick on the pedestrians.

B．Because the pedestrians behaved in a funny way.

C．Because they could feel the pedestrians' happiness.

D．Because their emotions were approved of by the show.

【小题3】What does the underlined word "belittling" probably mean？

A．Speaking highly of.	B．Getting close to.
C．Looking down on.	D．Feeling content with.

A team of engineers at Harvard University has been inspired by Nature to create the first robotic fly. The mechanical fly has become a platform for a series of new high-tech integrated systems. Designed to do what a fly does naturally, the tiny machine is the size of a fat housefly. Its mini wings allow it to stay in the air and perform controlled flight tasks.
“It’s extremely important for us to think about this as a whole system and not just the sum of a bunch of individual components (元件),” said Robert Wood, the Harvard engineering professor who has been working on the robotic fly project for over a decade. A few years ago, his team got the go-ahead to start piecing together the components. “The added difficulty with a project like this is that actually none of those components are off the shelf and so we have to develop them all on our own,” he said.
They engineered a series of systems to start and drive the robotic fly. “The seemingly simple system which just moves the wings has a number of interdependencies on the individual components, each of which individually has to perform well, but then has to be matched well to everything it’s connected to,” said Wood. The flight device was built into a set of power, computation, sensing and control systems. Wood says the success of the project proves that the flying robot with these tiny components can be built and manufactured.
While this first robotic flyer is linked to a small, off-board power source, the goal is eventually to equip it with a built-in power source, so that it might someday perform data-gathering work at rescue sites, in farmers’ fields or on the battlefield. “Basically it should be able to take off, land and fly around,” he said.
Wood says the design offers a new way to study flight mechanics and control at insect-scale. Yet, the power, sensing and computation technologies on board could have much broader applications. “You can start thinking about using them to answer open scientific questions, you know, to study biology in ways that would be difficult with the animals, but using these robots instead,” he said. “So there are a lot of technologies and open interesting scientific questions that are really what drives us on a day to day basis.”
【小题1】The difficulty the team of engineers met with while making the robotic fly was that __________.

A．they had no model in their mind

B．they did not have sufficient time

C．they had no ready-made components

D．they could not assemble the components

【小题2】It can be inferred from paragraphs 3 and 4 that the robotic fly __________.

A．consists of a flight device and a control system

B．can just fly in limited areas at the present time

C．can collect information from many sources

D．has been put into wide application

【小题3】Which of the following can be learned from the passage?

A．The robotic flyer is designed to learn about insects.

B．Animals are not allowed in biological experiments.

C．There used to be few ways to study how insects fly.

D．Wood’s design can replace animals in some experiments.

【小题4】Which of the following might be the best title of the passage?

A．Father of Robotic Fly

B．Inspiration from Engineering Science

C．Robotic Fly Imitates Real Life Insect

D．Harvard Breaks Through in Insect Study

短文改错

Some people think that they will get ill if they will use their brains too much. It is not truly. Through many studies，scientists show us that the less you use your brains，the better they will be，but the cleverer you will become. Of course，if you want to keep your mind clear and active，you must take proper rest and study properly. To the teenagers，use their brains in the morning is good for your health.

There are various ways to rest. One of them is a peaceful rest. Sleep is a perfect example. As we all know，lack of sleep can do great damage for our health. Another is an active rest. For example，take a walk outdoors，and do more exercises every day. In everyday life，eating some eggs，meat，fresh vegetables and fruit are also good for the brains.

   There's a good chance that something you've bought online has been in the hands of a " picker". These are the workers in warehouses (仓库) who pick, pack and ship all those things we ordered.

At Amazon and other companies, they're working side by side with robots. Experts say while the robots are replacing some human workers, the machines aren't quite ready to take over completely.

When a robot finds its storage unit,' it slides underneath, lifts it up and then delivers it to a worker they're called pickers. On a recent day, the computer told a picker to grab what looked like a fantasy board （#t 3#)game. The picker found it, packed it and placed it on the conveyer belt.

"In a traditional fulfillment center where the workers would walk to the different items, it can take hours to fulfill a customer order," Robinson says.

Now, with the help of robots, that task takes minutes and fewer humans.

So is this a sign that we're entering a new industrial revolution?

" It's definitely going to take over a lot of jobs ", says Karen Myers, a scientist at SRI, one of Silicon V alley's oldest research centers.

At the same time, she says, " We're running against the limits of technology. " Take the picker at the Amazon fulfillment center for example. Myers says those skills prove to be uniquely human.

"Our fingers are incredibly flexible and the current generation of robotic operators are getting much, much better," she says. "But they're just not quite there yet."

There's also the robot's brain.

Remember that board game the Amazon worker was looking for? She could barely see the box when it was filled into the storage bin——but she could tell it was a board game. Robots can't do that.

Technologists say that, increasingly, humans will work side by side with robots——instead of robots working alone.

Amazon says robots and humans enabled the Tracy warehouse to fulfill customer orders faster. That means more customers and more human workers.

【小题1】What does a picker do according to the text?

A．Selling goods.	B．Storing goods.
C．Delivering goods.	D．Producing goods.

【小题2】With the help. of robots, the tasks involved will become .

A．more difficult	B．less straight
C．more efficient	D．less profitable

【小题3】Compared with robots, which of the following is the advantage of human beings?

A．Flexible.	B．Artificial.
C．Powerful.	D．Energetic.

【小题4】What would be the best title for the text?

A．Robots replacing humans completely

B．Robots and humans working side by side

C．The future of robots .

D．The advantages of shopping online