杜某,男,4岁,乳牙。乳磨牙近中关系,前牙反,下颌前伸,位置前移。

如果设计上颌垫活动矫治器矫治,垫的高度应使前牙打开

A:0mm B:0.5~1mm C:1~2mm D:2~3mm E:3~4mm

杜某,男,4岁,乳牙。乳磨牙近中关系,前牙反,下颌前伸,位置前移。

解除后,双侧垫每次应磨除

A:0.5mm以内 B:0.5~1.0mm C:0~2.0mm D:1/3 E:1/2


Directions: There are five reading passages in this part. Each passage is followed by four questions. For each question there are four suggested answers marked A, B, C and D. Choose the best answer and blacken the corresponding letter on the Answer Sheet.
Passage One

The first true piece of sports equipment that man invented was the ball.
In ancient Egypt, as everywhere, pitching stones was a favorite children’s game. But a badly thrown rock could hurt a child. Looking for something less dangerous to throw, the Egyptians made what were probably the first balls.
At first, balls were made of grass or leaves held together by vines. Later they were made of piece of animal skin sewed together and stuffed with feathers or hay.
Even though the Egyptians were warlike, they found time for peaceful games. Before long they had developed a number of ball games, each with its own set of rules, perhaps they played ball more for instruction than for fun. Ball playing was thought of mainly as a way to teach young men the speed and skill they would need for war.
This selection says that the Egyptians played______.

A:many different games with balls B:many different kinds of games C:only one ball game D:different games with similar rules


Directions: There are five reading passages in this part. Each passage is followed by four questions. For each question there are four suggested answers marked A, B, C and D. Choose the best answer and blacken the corresponding letter on the Answer Sheet.
Passage One

The first true piece of sports equipment that man invented was the ball.
In ancient Egypt, as everywhere, pitching stones was a favorite children’s game. But a badly thrown rock could hurt a child. Looking for something less dangerous to throw, the Egyptians made what were probably the first balls.
At first, balls were made of grass or leaves held together by vines. Later they were made of piece of animal skin sewed together and stuffed with feathers or hay.
Even though the Egyptians were warlike, they found time for peaceful games. Before long they had developed a number of ball games, each with its own set of rules, perhaps they played ball more for instruction than for fun. Ball playing was thought of mainly as a way to teach young men the speed and skill they would need for war.
The best title for this selection is______.

A:The First Ball Games B:How Egyptian Children Played Games C:Egyptian Sports D:The Beginning of Sports

Passage Two

A hundred years ago, the game we now call football did not exist. American football started during a game between two colleges. The teams had got together to play what they called "football", but each team played by different roles. One team played what we now call soccer. The other played what we now call rugby (橄榄球) .
Both games had been invented a thousand years before. In the first kind of football game ever played, all the men from one village tried to kick a ball into another village. The men of the second village tried to kick the ball into the first. Hundreds of people joined in, running everywhere, running crops and knocking down fences. In time, people agreed on some rules to keep order, but many rules were left open to change. Different rules developed in different places.
When the two colleges met to play football, each followed its own rules. They mixed the games together and invented a new game. A hundred years later we call that game American football.
In what ways do you suppose the game we know now will have changed in another hundred years
"Both games" at the beginning of the second paragraph refers to______.

A:soccer and rugby B:American football and British football C:two village ball games D:two new football games

Passage Two

Basketball is still a young game. in the winter or 1891, a certain college was having trouble with its boy students. The weather was so terrible that the students had to stay indoors. Since they could not enjoy their sports outside as usual, they were unhappy, and some of them often got into fights from time to time.
Finally, one of the teachers at the college, J. E. Naismith, was asked to invent a new game for the students. It was not an easy job because such a game had to be played indoors, and the court was not very large.
Naismith thought for a few days and invented a kind of ball game. It was a fast. exciting game with much moving and passing of the ball. It was played between two teams. To make score, the ball had to be thrown into a basket ten feet high above the floor on the wail. At each end of the court there was such a basket. At first, Naismith had planned to have the ball thrown into a box. As he could not find boxes of the right size, he had to use fruit basket in- stead. That is how the game got its name.
Naismith had thought of using a box in the game, yet he gave up the idea before long and fixed something different "______" on the wall.

A:the wall B:a kind of ball game C:a fruit basket D:the basketball team


Directions: There are five reading passages in this part. Each passage is followed by four questions. For each question there are four suggested answers marked A, B, C and D.Choose the best answer and blacken the corresponding letter on the Answer Sheet.
Passage One

The first true piece of sports equipment that man invented was the ball.
In ancient Egypt, as everywhere, pitching stones was a favorite children’s game. But a badly thrown rock could hurt a child. Looking for something less dangerous to throw, the Egyptians made what were probably the first balls.
At first, balls were made of grass or leaves held together by vines. Later they were made of piece of animal skin sewed together and stuffed with feathers or hay.
Even though the Egyptians were warlike, they found time for peaceful games. Before long they had developed a number of ball games, each with its own set of roles. Perhaps they played ball more for instruction than for fun. Ball playing was thought of mainly as a way to teach young men the speed and skill they would need for war.
This selection says that the Egyptians played ______.

A:many different games with balls B:many different kinds of games C:only one ball game D:different games with similar rules


Directions: There are five reading passages in this part. Each passage is followed by four questions. For each question there are four suggested answers marked A, B, C and D.Choose the best answer and blacken the corresponding letter on the Answer Sheet.
Passage One

The first true piece of sports equipment that man invented was the ball.
In ancient Egypt, as everywhere, pitching stones was a favorite children’s game. But a badly thrown rock could hurt a child. Looking for something less dangerous to throw, the Egyptians made what were probably the first balls.
At first, balls were made of grass or leaves held together by vines. Later they were made of piece of animal skin sewed together and stuffed with feathers or hay.
Even though the Egyptians were warlike, they found time for peaceful games. Before long they had developed a number of ball games, each with its own set of roles. Perhaps they played ball more for instruction than for fun. Ball playing was thought of mainly as a way to teach young men the speed and skill they would need for war.
The best title for this selection is ______.

A:The First Ball Games B:How Egyptian Children Played Games C:Egyptian Sports D:The Beginning of Sports

Passage 2

Basketball is a sport enjoyed by millions of fans in at least 100 countries. It’s one of the best-known sports in the world. It all began in 1891.
Dr. James A. Naismith, the father of basketball, was an instructor at a YMCA(jī dū jiāo ) Training school. The school trained people to work in YMCAs. Officials at the school were concerned about the low attendance during the winter months. They felt that people didn’t attend then because the school did not have a good winter sports program. So they asked Dr. Naismith for help. He came up with a new indoor game.
Naismith studied current games. He found that all the most popular games used a ball. So a ball would be a part of his new game, he decided. But kicking the ball or hitting it would be too rough for indoor. So he put 2 peach baskets up on poles. The players had to try to throw a soccer ball into them. Naismith then made thirteen rules for the game. 12 of them are still in use today. Just 7 years after the game began, professional basketball teams were formed.
And that’s how basketball was born.
The YMCA training school officials asked Naismith to invent a new game because ______.

A:People didn’t have enough outdoor exercises in the winter B:basketball would become popular among the young people C:they hoped that would attract more people to their school D:kicking the ball or hitting it would be too rough for indoors

Passage 2

Basketball is a sport enjoyed by millions of fans in at least 100 countries. It’s one of the best-known sports in the world. It all began in 1891.
Dr. James A. Naismith, the father of basketball, was an instructor at a YMCA(jī dū jiāo ) Training school. The school trained people to work in YMCAs. Officials at the school were concerned about the low attendance during the winter months. They felt that people didn’t attend then because the school did not have a good winter sports program. So they asked Dr. Naismith for help. He came up with a new indoor game.
Naismith studied current games. He found that all the most popular games used a ball. So a ball would be a part of his new game, he decided. But kicking the ball or hitting it would be too rough for indoor. So he put 2 peach baskets up on poles. The players had to try to throw a soccer ball into them. Naismith then made thirteen rules for the game. 12 of them are still in use today. Just 7 years after the game began, professional basketball teams were formed.
And that’s how basketball was born.
Which of the following statements is NOT true according to the passage ______.

A:Basketball was meant to be played indoors at first B:Ball games attract a lot of people C:Football is not suited for indoors D:A YMCA training school is one where athletes are trained

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