静注丙种球蛋白治疗有效的是| A.继发性免疫缺陷病 B.低IgG血症 C.B

二、课文填空（共10小题，每小题1分，满分10分）

根据课文内容补充缺失的词语，每个空填一个词。注意：请把答案写在答题纸上。

Towards the end of the Qing Dynasty, the conditions in Beijing’s hutongs went down as the political situation c_______(91) a dark cloud on China’s economy. Many new hutongs were quickly built to h______(92) the increasing population but these were poorly made. The t______(93) point came when the People’s Republic of China was set up. Conditions improved a great deal and the government u_________(94) the preservation of many of the oldest hutongs.

Hutongs are still an important part of Beijing life and it is not surprising that tourists love the hutongs. They can walk up Sanmiao Street, which dates back 900 years, w________(95) down Rongxian – the longest hutong at 2 km or s__________(96) through Qianshi – the narrowest at only 40 cm wide! They can also stop under a stone arch and watch the hutong world go by while e__________(97) a plate of Beijing’s best “Peking Duck” or s__________(98) their thirst with a cold Tsingtao beer. The hutongs not only l_________(99) Beijing’s streets and communities after all, but also its past and present, showing that Beijing is truly an a__________ (100)yet modern city.

快乐小阅读。

　　松鼠是一种美丽的小动物。它四肢灵活，行动敏捷，总是在树枝上跳来跳去，互相追逐嬉戏。精巧的小面孔上，嵌着一对闪闪发光的小眼睛，机警地转动着。身上灰褐色的毛，光滑得如同搽过油，摸上去细腻而柔软。一条毛茸茸的大尾巴总是向上翘着，显得格外漂亮。它小巧玲珑，格外讨人喜欢。

1．填一填。

　　这段话主要写了________的外形及其________的特点，文中____________这句话总述了这个意思。分别从________、________、________、________、________几个方面进行分述。

2．你喜欢小松鼠吗？为什么？

_____________________________________________________________

阅读理解。

     Teeth are important. Strong, healthy teeth help you chew foods that help you grow. They help you speak

clearly. And, they help you look your best. Here are some tips for you to take care of your teeth.

     1. Brush your teeth on the right way.

     Brush your teeth at least twice a day-after breakfast and lunch or after sweet snacks, too. Brush all of your

teeth, not just the front ones, spend time brushing teeth along the sides and back of your mouth. Brush away

from your gums, too.

     Spend at least three minutes each time you brush. Play a song you like to help pass the time. Get a new

toothbrush every three months. When you buy your toothbrush,be sure it has soft bristles (毛).

     2. Learn how to floss your teeth.

     Flossing is a very important way to keep your teeth healthy. Food may hide in places where a toothbrush

cannot get to, like the space between two teeth. Flossing can help get rid of it. Carefully move floss between

two teeth. Up and down. You'll need to floss your teeth at least once a day.

     3. Have good eating habits.

     You need to be careful about what you eat and drink. Eating sugar is a major of tooth decay (腐败). Eating

sugar before you go to bed can make things even worse, eat lots of fruit and vegetables and drink water instead

of soda.

1. The passage is mainly about _____.

A. how to take care of your teeth

B. how to brush your teeth

C. how to form good eating habits

D. how to floss your teeth

2. The underlined word "tips" in this passage means _____.

A. money given to the waiter for personal services

B. piece of advice on how to do something

C. light blow, tape

D. thin end of something

3. When you brush your teeth, at least _____ minute(s)is necessary.

A. 1

B. 2

C. 3

D. 4

4. Which is NOT mentioned in this passage?

A. Flossing your teeth.

B. Having good eating habits.

C. Brushing your teeth.

D. Going to see the dentist.

5. Which of the following statements is NOT true according to this article?

A. We should brush our teeth at least twice a day.

B. Flossing can help to get rid of the food hidden between two teeth.

C. One of the major causes of tooth decay is eating sugar.

D. We don't have to brush our teeth if we eat a lot of fruit and vegetables.

20，20，33，59，98，（）。

A．150

B．152

C．154

D．156

呼吸衰竭时下列检查中哪项不符合慢性呼吸性酸中毒表现

A．PaCO₂上升

B．pH可正常或降低

C．HCO₃ˉ上升

D．SB＞AB

E．CO₂结合力上升