If you don’t have a meal, do you ever notice yourself starting to get angry very easily? Well, this is often known as being “hangry” or being angry because you are very hungry.

But as it turns out, it’s not just a funny phrase, it is scientifically true! Scientists have found this feeling of anger usually comes from having low glucose(葡萄糖)levels in the bloodstream(血液). Glucose is put into the body after you eat.

The brain also needs this to work correctly. When the glucose in your body is low, the brain sends hormones(激素)to increase the amount of that. This makes it hard for people to control their emotions. The brain even starts to feel like you are dealing with a life-threatening situation if you don’t get enough glucose. Another problem is that the brain will also use neuropeptide(神经肽)to send a message saying you should eat. And this is the same chemical that manages anger.

Amanda Salis, PhD, University of Sydney, says that we may also be able to thank our ancestors(祖先)for our hanger. Salis says that long ago when there was not much food, people had to be aggressive(富于攻击性的)so that they could get enough food to live.

Even now when most people have enough food to eat, there is still that feeling of needing food.

1.What can we learn about “hangry” from the passage?

A.It means being sad. B.It means being angry.

C.It means being hungry. D.It means being angry because of hunger.

2.Hormones can increase the amount of _________ in the body.

A.bloodstream B.neuropeptide C.food D.glucose

3.When is it difficult for one to control his(her)emotion according to this passage?

A.When the glucose in his(her)body is low. B.When the glucose in his(her)body is high.

C.When his(her)brain is working correctly. D.When he(she)eats too much.

4.What can we learn according to Salis?

A.Food is not important.

B.Being hungry is very normal.

C.People get aggressive for much food sometimes.

D.Neuropeptide will send a message once you are angry.

5.What is the best title for the passage?

A.The Reason of Being “Hangry” B.The Importance of Glucose

C.The Reason of Having Low Glucose D.The Way to Keep Brain Working Correctly

“Don’t ask what the world needs. Ask what makes you come alive, and go do it. Because what the world needs is people who have come alive,” said Howard Thurman. Yes, one of the best ways to learn about other people and other places is by visiting, connecting, and experiencing them yourself. Traveling the world opens your mind.

I remember when I was traveling, I began to know the world better. The world is not just about me, my small town and home. Although you will meet different people from all over the world, you will realize that people are similar in their dreams, hopes and feelings. Enjoy exploring the different cultures, and you will also find that people are different in some of the things they do and how they live. Once you understand their ways, it will not be strange or scary. Often you read stories about other cultures in books. Only when you visit their areas do you find that those stories are sometimes wrong.

One thing you may find out is that there are problems all over the world. You cannot just get money to send to these areas and hope that will work them out. The world should get involved and help wherever there are problems. People everywhere should be given a chance. It is so easy to ignore (忽视) this if one does not travel or explore. One can look around and see that so many people have many challenges worse than ours. One can realize that sometimes our biggest problems are not that big after all.

On your journey you will meet a lot of new friends. Talking to strangers and finding about their lives is a great way to spend your time. You will certainly be more confident after having to deal with problems and make many decisions along the way.

When you travel, you have to be on your own in some situations. You will surprise yourself by how well you can do that. All your special experiences could make an interesting book to read. It would be filled with all your adventures and special memories.

Traveling around and seeing so much happening in the world around us is a wonderful experience. If we could all just travel a little more and share our experiences, we would all be better people and the world would be a better place.

1.The writer wants to tell us that ________ in Paragraph 2.

A.traveling can help us realize our dreams

B.traveling can help us better understand the world

C.traveling can help us find stories in books are sometimes wrong

D.traveling can help us know people all over the world are different

2.The writer advises us to help the areas in need by ________.

A.offering them chances B.sending them money

C.giving them challenges D.finding out their problems

3.Which of the following would be the best title for the passage?

A.Traveling Makes One a Better Person

B.Traveling Makes the World a Better Place

C.Traveling Helps People Make More Friends

D.Traveling Helps People Share Their Experiences

4.What is the writer’s main purpose in writing this passage?

A.To show how traveling can change the world.

B.To tell people how to travel around the world.

C.To encourage more people to travel around the world.

D.To share the writer’s travel experiences with other people.

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