It takes years of school to develop math skills, but learning about numbers starts earlier than you might think. Now according to a new study, at three months, babies have already started acquiring a concept (概念) of “how much”.
Previous research had suggested that very young babies can tell when the number of objects (物体) in a group has changed. But the babies in these studies were simply reacting generally to the fact that something had changed, they suspected.
Researchers of Harvard University studied 36 babies, all three months old. During the tests, each baby wore a hat with sensors (传感器). The babies watched a series of images on a computer screen. They showed the same object, such as a cartoon character. For a while, the number of the objects in the pictures didn’t change. Then the images began to display a different object, or a different number of one of the objects the babies had previously looked at. As soon as something changed, the babies’ brains responded with a specific pattern of electrical signals, which would be recorded by sensors.
By analyzing these signals, the researchers discovered that one part of the brain (near the top on the left side) responded when the object in the image changed. A different part of the brain (lower and on the right side) responded when the number of objects in the image changed. This was not the area of the brain that is involved in attention. That suggests that the babies’ brains are doing more than just reacting to a change in what they’re seeing – they actually seem to be able to tell number changes from other types of changes.
Numbers and amounts are important concepts in our lives. Even though babies are years away from adding, subtracting (减), multiplying, and dividing, their brains seem to be preparing for a time when they finally will.
【小题1】Why were hats with sensors used in the study?

请认真阅读下列短文，并根据所读内容在文章后表格中的空格里填入一个最恰当的单词。

         注意：每个空格只填1个单词。请将答案写在答题卡上相应题号的横线上。

How we look and how we appear to others probably worries us more when we are in our teens or early twenties than at any other time in our life. Few of us are content to accept ourselves as we are, and few are brave enough to ignore the trends of fashion.

Most fashion magazines or TV advertisements try to persuade us that we should dress in a certain way or behave in a certain manner. If we do, they tell us, we will be able to meet new people with confidence and deal with every situation confidently and without embarrassment. Changing fashion, of course, does not apply just to dress. A barber today does not cut a boy’s hair in the same way as he used to, and girls do not make up in the same way as their mothers and grandmothers did. The advertisers show us the latest fashionable styles and we are constantly under pressure to follow the fashion in case our friends think we are odd or dull.

What causes fashions to change? Sometimes convenience or practical necessity or just the fancy of an influential person can establish a fashion. Take hats, for example. In cold climates, early buildings were cold inside, so people wore hats indoors as well as outside. In recent times, the late President Kennedy caused a depression in the American hat industry by not wearing hats, more American men followed his example.

There is also a cyclical(周期性的) pattern in fashion. In the 1920s in Europe and America, short skirts became fashionable. After World War Two, they dropped to ankle length. Then they got shorter and shorter until the miniskirt was in fashion. After a few more years, skirts became longer again.

Today, society is much freer and easier than it used to be. It is no longer necessary to dress like everyone else. Within reason, you can dress as you like or do your hair the way you like instead of the way you should because it is the fashion. The popularity of jeans and the “untidy” look seems to be a reaction against the increasingly expensive fashion of the top fashion houses.

At the same time, appearance is still important in certain circumstances and then we must choose our clothes carefully. It would be foolish to go to an interview for a job in a law firm wearing jeans and a sweater, and it would be discourteous(失礼的) to visit some distinguished scholar looking as if we were going to the beach or a night club. However, you need never feel depressed if you don’t look like the latest fashion photo. Look around you and you’ll see that no one else does either!

Fashion Change

It takes years of school to develop math skills, but learning about numbers starts earlier than you might think. Now according to a new study, at three months, babies have already started acquiring a concept (概念) of “how much”.

Previous research had suggested that very young babies can tell when the number of objects (物体) in a group has changed. But the babies in these studies were simply reacting generally to the fact that something had changed, they suspected.

Researchers of Harvard University studied 36 babies, all three months old. During the tests, each baby wore a hat with sensors (传感器). The babies watched a series of images on a computer screen. They showed the same object, such as a cartoon character. For a while, the number of the objects in the pictures didn’t change. Then the images began to display a different object, or a different number of one of the objects the babies had previously looked at. As soon as something changed, the babies’ brains responded with a specific pattern of electrical signals, which would be recorded by sensors.

By analyzing these signals, the researchers discovered that one part of the brain (near the top on the left side) responded when the object in the image changed. A different part of the brain (lower and on the right side) responded when the number of objects in the image changed. This was not the area of the brain that is involved in attention. That suggests that the babies’ brains are doing more than just reacting to a change in what they’re seeing – they actually seem to be able to tell number changes from other types of changes.

Numbers and amounts are important concepts in our lives. Even though babies are years away from adding, subtracting (减), multiplying, and dividing, their brains seem to be preparing for a time when they finally will.

1.Why were hats with sensors used in the study?

2.What does the underlined word “They” in the third paragraph refer to?

3.Which part of the brain is responsible for responding to the changes of numbers?

4.The last paragraph mainly implies that           .

5.The purpose of the study is to prove that          .

请认真阅读下列短文，并根据所读内容在文章后表格中的空格里填入1个最恰当的单词。
注意：每个空格只填1个单词。
How we look and how we appear to others probably worries us more when we are in our teens or early twenties than at any other time in our life. Few of us are content to accept ourselves as we are, and few are brave enough to ignore the trends of fashion.
Most fashion magazines or TV advertisements try to persuade us that we should dress in a certain way or behave in a certain manner. If we do, they tell us, we will be able to meet new people with confidence and deal with every situation confidently and without embarrassment. Changing fashion, of course, does not apply just to dress. A barber today does not cut a boy’s hair in the same way as he used to, and girls do not make up in the same way as their mothers and grandmothers did. The advertisers show us the latest fashionable styles and we are constantly under pressure to follow the fashion in case our friends think we are odd or dull.
What causes fashions to change? Sometimes convenience or practical necessity or just the fancy of an influential person can establish a fashion. Take hats for example. In cold climates, early buildings were cold inside, so people wore hats indoors as well as outside. In recent times, the late President Kennedy caused a depression in the American hat industry by not wearing hats, and more American men followed his example.
There is also a cyclical(周期性的) pattern in fashion. In the 1920s in Europe and America, short skirts became fashionable. After World War II, they dropped to ankle length. Then they got shorter and shorter until the miniskirt was in fashion. After a few more years, skirts became longer again.
Today, society is much freer and easier than it used to be. It is no longer necessary to dress like everyone else. Within reason, you can dress as you like or do your hair the way you like instead of the way you should because it is the fashion. The popularity of jeans and the “untidy” look seems to be a reaction against the increasingly expensive fashion of the top fashion houses.
At the same time, appearance is still important in certain circumstances and then we must choose our clothes carefully. It would be foolish to go to an interview for a job in a law firm wearing jeans and a sweater, and it would be discourteous(失礼的) to visit some distinguished scholar looking as if we were going to the beach or a night club. However, you need never feel depressed if you don’t look like the latest fashion photo. Look around you and you’ll see that no one else does either!
Fashion Change

请认真阅读下列短文，并根据所读内容在文章后表格中的空格里填入1个最恰当的单词。

注意：每个空格只填1个单词。

How we look and how we appear to others probably worries us more when we are in our teens or early twenties than at any other time in our life. Few of us are content to accept ourselves as we are, and few are brave enough to ignore the trends of fashion.

Most fashion magazines or TV advertisements try to persuade us that we should dress in a certain way or behave in a certain manner. If we do, they tell us, we will be able to meet new people with confidence and deal with every situation confidently and without embarrassment. Changing fashion, of course, does not apply just to dress. A barber today does not cut a boy’s hair in the same way as he used to, and girls do not make up in the same way as their mothers and grandmothers did. The advertisers show us the latest fashionable styles and we are constantly under pressure to follow the fashion in case our friends think we are odd or dull.

What causes fashions to change? Sometimes convenience or practical necessity or just the fancy of an influential person can establish a fashion. Take hats for example. In cold climates, early buildings were cold inside, so people wore hats indoors as well as outside. In recent times, the late President Kennedy caused a depression in the American hat industry by not wearing hats, and more American men followed his example.

There is also a cyclical(周期性的) pattern in fashion. In the 1920s in Europe and America, short skirts became fashionable. After World War II, they dropped to ankle length. Then they got shorter and shorter until the miniskirt was in fashion. After a few more years, skirts became longer again.

Today, society is much freer and easier than it used to be. It is no longer necessary to dress like everyone else. Within reason, you can dress as you like or do your hair the way you like instead of the way you should because it is the fashion. The popularity of jeans and the “untidy” look seems to be a reaction against the increasingly expensive fashion of the top fashion houses.

At the same time, appearance is still important in certain circumstances and then we must choose our clothes carefully. It would be foolish to go to an interview for a job in a law firm wearing jeans and a sweater, and it would be discourteous(失礼的) to visit some distinguished scholar looking as if we were going to the beach or a night club. However, you need never feel depressed if you don’t look like the latest fashion photo. Look around you and you’ll see that no one else does either!

Fashion Change