问题 单项选择题 A3/A4型题

患者,男,36岁,2个月前因外伤一上前牙脱落口腔检查:左上1缺失,间隙正常,牙槽嵴无明显吸收。右上1牙冠1/2缺损,已露髓,探稍敏感,叩诊阴性,无松动。左上2牙冠良好,叩诊阴性,无松动。上下前牙牙龈轻度红肿,易出血,可见菌斑及牙石。余牙未见异常。

下列哪项不是修复前进行的必要的检查和治疗工作()

A.前牙区牙片

B.右上1根管治疗

C.左上2根管治疗

D.牙周洁治

E.取研究模型

答案

参考答案:C

阅读理解

阅读理解

     The practice of magic includes special words, actions, and objects. Most magic involves a person

called a magician, who claims to have supernatural powers.

      Magic words. To work most magic, the magician sings or speaks special words in a certain order.

These words are called incantations or spells. Some spells form prayers to demons(魔鬼), spirits, or

other supernatural forces. Many societies believe the magic will not work unless the magician recites the

spells perfectly. Other magic words have no meaning, though they supposedly possess power when

spoken by a magician.

     Magic actions accompany the words spoken in performing much magic. Many of these movements

act out the desired effect of the magic. For example, a magician trying to make rain fall may sprinkle(洒)

water on the ground. The magician's combined words and actions form a ceremony.

     Magic objects include certain plants, stones, and other things with supposed supernatural powers.

Any such object may be called a fetish(物神). But this term often refers to an object-for example, a

carving or a dried snake-honored by a tribe for its magic powers. Many tribes believe fetishes have

magic power because spirits live in these objects.

     Many people carry magic objects called amulets(护身符)to protect themselves from harm. Many

amulets are stones or rings engraved(雕刻) with magic symbols.

     The magician. In some societies, nearly everyone knows how to work some magic. In other societies,

only experts practice magic. Magicians may be called medicine men, medicine women, shamans,

sorcerers, or witch doctors. In many societies, magicians must inherit their powers. In others, any person

may become a magician by studying the magical arts.

     Many societies believe magicians must observe certain rules and taboos (forbidden actions) for their

spells to work. For example, they may be required not to eat various foods or to avoid sexual activity for

a certain period before the ceremony.

1. What do magic words mean to people in some society?

A. They have the power to kill devils.

B. They have power if magician recites the right spells.

C. They have no effect at all.

D. They can be used whenever they want.

2. People believe magic actions will have an effect if they are accompanied by________.

A. the spells

B. magic objects

C. stones or rings engraved with magic symbols

D. medicine

3. Why do many people believe in a fetish?

A. Because it is often a ring which is worth a lot of money.

B. Because it is carved with magic symbols.

C. Because people think spirits live in it.

D. Because it can help them with many things.

4. According to the passage what kind of person can become a magician?

A. Only those studying the magical arts.

B. Only those inheriting their powers.

C. Only men.

D. Almost all the people in some societies.

5. What's the best title of the passage?

A. How Magic Works

B. The Power of Magic

C. How to Practice Magic

D. The Choice of Magicians

单项选择题