阅读理解。 In the United States, it is not u

题型:阅读理解

问题:

阅读理解。

     In the United States, it is not usual to telephone someone early in the morning. If you telephone early in

the day, while he is shaving or having breakfast, the time of the call shows that the matter is very important

and requires immediate attention. So it is with the telephone calls made after 11:00 pm. If someone receives

a call during sleeping hours, he may think that it's a matter of life and death. The time chosen for the call

communicates its importance.

     In social life, time plays a very important part. In the USA guests tend to feel they are not highly regarded

if the invitation to a dinner party reaches them only three or four days before the party date. But it is not true

in all countries. In other areas of the world, it may be considered foolish to make an appointment too far in

advance because plans which are made for a date more than a week away tend to be forgotten. The meaning

of time is not the same in different cultures that treat time differently; being on time is valued highly in

American life, for example. If people are not on time, they may be regarded as impolite or not fully responsible.

In the USA no one would think of keeping a business friend for an hour; it would be too impolite. A person

who is 5 minutes late is expected to make a short apology. If he is less than 5 minutes late, he will say a few

words of explanation, though perhaps he will not complete the sentence.

1. A call at midnight would mean _____. [ ]

A. the matter is less important

B. the matter is too difficult to handle

C. the matter requires immediate attention

D. it is a matter of life and death

2. According to the passage, time plays a very important part in _____.[ ]

A. everyday life

B. private life

C. getting along with others

D. business

3. In the passage, the author suggests that invitation cards should be sent _____. [ ]

A. three or four days before the party date in all cultures

B. three or four days before the party date in some cultures

C. three or four days before the party date in the USA

D. at your chosen time

考点:历史文化类阅读
题型:阅读理解

中国第一个全国性的统一的资产阶级革命政党是 [ ]

A.兴中会

B.光复会

C.强学会

D.同盟会

题型:阅读理解

患者,男性,20岁,10岁时右眼外伤后曾行“白内障抽吸术联合人工晶状体植入术”,近1年发现视力下降就医,眼部检查:右眼视力0.2,角膜透明,前房深,人工晶状体在位,后囊膜下混浊。眼底隐约可见。正确的诊断是()

A.外伤性白内障

B.后发性白内障

C.代谢性白内障

D.并发性白内障

E.先天性白内障

题型:阅读理解

(13分)Ⅰ.某学校研究性学习小组开展“不同条件对化学反应速率影响的探究”课题,选用4 mL 0.01 mol·L-1KMnO4溶液与2 mL 0.1 mol·L-1 H2C2O4溶液进行实验,改变条件如下:

组别10%硫酸的体积(mL)温度/℃其他物质
2 mL20 
2 mL2010滴饱和MnSO4溶液
2 mL30 
1 mL201 mL蒸馏水
(1)如果研究催化剂对化学反应速率的影响,使用实验             (用①~④表示,下同);如果研究温度对化学反应速率的影响,使用实验            

(2)对比实验①和④,可以研究                                       对化学反应速率的影响,实验④中加入1 mL蒸馏水的目的是                                                 

Ⅱ.该小组查阅资料得知:C2O42-+MnO4+H→ CO2↑+Mn2+H2O(未配平),欲利用该反应测定某草酸钠(Na2C2O4)样品中草酸钠的质量分数。该小组称量1.34 g草酸钠样品溶于稀硫酸中,然后用0.200 mol·L-1的酸性高锰酸钾溶液进行滴定(其中的杂质不跟高锰酸钾和稀硫酸反应)。

(1)滴定前是否要滴加指示剂?      (填“是”或“否”),请说明理由                 

(2)滴定时用         (填a或b)滴定管盛装KMnO4标准溶液。

(3)达到终点时消耗了15.00 mL的高锰酸钾溶液,样品中草酸钠的质量分数为         

题型:阅读理解

非特异投射系统( )

A.由丘脑的感觉接替核弥散地向大脑皮质投射
B.向大脑皮质投射的区域狭窄,引起特定的感觉
C.受到破坏时,动物将出现角弓反张现象
D.受到破坏时,动物进入持久的昏睡状态
E.受到刺激时,动物脑电图呈同步化慢波

题型:阅读理解

什么是复合成品材料?其安装应执行什么定额项目?

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