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问题 实验题

下图为细菌结构的示意图，请根据图回答下列问题。

（1）图中A是       B       C     D       E        

（2）F是         ，它使细菌能够运动。   

（3）该细菌的结构中没有            ，不能进行光合作用，不能制造        ；营养方式是        ，生殖方式是        .

（4）        是细菌的休眠体，对不良环境有较强的抵抗能力。

答案

（1）A.DNA B.细胞膜C.细胞壁D.荚膜 E、细胞质

（2）鞭毛

（3）叶绿体、有机物、异养、分裂生殖

（4）芽孢

题目分析：（1）图中各字母分别表示A.DNA B.细胞膜C.细胞壁D.荚膜 E、细胞质；

（2）在细菌的结构示意图中F是鞭毛，鞭毛的作用是帮助细菌运动；

（3）细菌与植物细胞相比没有叶绿体，所以不能进行光合作用，不能自己利用无机物制造有机物，只能依靠现成的有机物生活，因此它的营养方式是异养．细菌进行简单的分裂生殖，一个细菌横向分裂成两个细菌，这种生殖方式叫裂殖，在环境适宜的时候，不到半小时，细菌就能分裂一次；

（4）当细胞壁增厚的时候，细菌能够形成一个椭圆形的休眠体，叫做芽孢，以抵抗不良环境。

单项选择题 B型题

肠结核的主要感染途径是（）

A.血行播散

B.经淋巴组织

C.经口

D.腹腔病变直接蔓延

E.腰椎病变直接蔓延
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阅读理解

Research has shown that music has an important effect on one’s body and psyche (心灵). In fact, there is a growing field of health care known as music therapy, which uses music to treat diseases. Even hospitals are beginning to use music therapy. This is not surprising, as music affects the body and mind in many powerful ways.

Research has shown that quick music can make a person feel more alert, while slow music can produce a calm, deep thinking state. Also, research has found that music can change brainwave activity levels. This can help the brain to change speeds more easily on its own as needed, which means that music can bring lasting benefits to your state of mind, even after you’ve stopped listening.

Breathing and heart rates can also be influenced by music. This can mean slower breathing, slower heart rate. This is why music and music therapy can help reduce the damaging effects of long-term stress, greatly promoting (促进) not only relaxation, but health.

Music can also be used to bring about a more positive state of mind by helping to keep worries at bay. Music has also been found to bring many other benefits, such as lowering blood pressure and reducing the risk of strokes. It is no surprise that so many people are considering music as an important tool to help the body become or stay healthy.

小题1:What can we infer about music therapy?

A．It is a type of music.

B．It is a research about music.

C．It is a kind of musical effect on diseases.

D．It is the use of music method to help treat diseases.小题2:The reason why music can help deal with stress is that ________.

A．it is used by many hospitals

B．it can help change brainwaves

C．it does good to breathing and heart rates

D．it can bring a more positive state of mind小题3:According to the passage, music can help deal with all the following EXCEPT ________.

A．nervousness

B．mind illnesses

C．strokes

D．high blood pressure小题4:The passage is mainly about _________.

A．the importance of music therapy

B．benefits music can bring

C．research on the effect of music

D．diseases music can help heal
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