[单选题]To us it seems so natural to put up an umbrella to keep the water off when it rains．But actually the umbrella was not invented as protection against rain．Its first use was as a shade against the sun． Nobody knows who first invented it,but the umbrella was used in very ancient times．Probably the first to use it were the Chinese,way back in the eleventh century B. C. We know that the umbrella was used in ancient Egypt and Babylon as a sunshade．And there was a strange thing connected with its use:it became a symbol of honor and authority．In the Far East in ancient times,the umbrella was allowed to be used only by royalty or by those in high office. In Europe,the Greeks were the first to use the umbrella as a sunshade．And the umbrella was in common use in ancient Greece．But it is believed that the first persons in Europe to use the umbrella as protection against the rain were the ancient Romans. During the Middle Ages,the use of the umbrella practically disappeared．Then it appeared again in Italy in the late sixteenth century．And again it was considered a symbol of power and authority．By 1680,The umbrella appeared in France,and later on in England. By the eighteenth century,the umbrella was used against rain throughout most of Europe．Umbrellas have not changed much in style during all this time,though they have become much lighter in weight．It wasn't until the twentieth century that women's umbrellas began to be made,in a whole variety of colors. Which of the following is the best title for the passage?
A.The Invention of Umbrell
B.The History of Umbrell
C.Umbrella--A Symbol of Hono
D.Who Used Umbrella First?

[单选题]To us it seems so natural to put up an umbrella to keep the water off when it rains．But actually the umbrella was not invented as protection against rain．Its first use was as a shade against the sun． Nobody knows who first invented it,but the umbrella was used in very ancient times．Probably the first to use it were the Chinese,way back in the eleventh century B. C. We know that the umbrella was used in ancient Egypt and Babylon as a sunshade．And there was a strange thing connected with its use:it became a symbol of honor and authority．In the Far East in ancient times,the umbrella was allowed to be used only by royalty or by those in high office. In Europe,the Greeks were the first to use the umbrella as a sunshade．And the umbrella was in common use in ancient Greece．But it is believed that the first persons in Europe to use the umbrella as protection against the rain were the ancient Romans. During the Middle Ages,the use of the umbrella practically disappeared．Then it appeared again in Italy in the late sixteenth century．And again it was considered a symbol of power and authority．By 1680,The umbrella appeared in France,and later on in England. By the eighteenth century,the umbrella was used against rain throughout most of Europe．Umbrellas have not changed much in style during all this time,though they have become much lighter in weight．It wasn't until the twentieth century that women's umbrellas began to be made,in a whole variety of colors. According to the passage,which of the following is NOT true?
A.Women enjoy using umbrellas with various kinds of colors nowaday
B.The inventor of the umbrella is unknow
C.Once ordinary people had no right to use umbrell
D.Umbrellas were popular and cheap in ancient time

[单选题]It seems so natural to put up an umbrella to keep the water off when it rains.But actually the?umbrella was not invented as protection against rain.Its first use was as a shade against the sun! Nobody knows who first invented it,but the umbrella was used in very ancient times.Probably?the first to use it were the Chinese,as early as the eleventh century B. C. We know that the umbrella was used in ancient Egypt and Babylon as a sunshade.And there?was a strange thing connected with its use:it became a symbol of honour and authority.In the Far?East in ancient times the umbrella was allowed to be used only by royalty or by those in high office. In Europe,the Greeks were the first to use the umbrella as a sunshade.And the umbrella was?in common use in ancient Greece.But it is believed that the first persons in Europe to use the?umbrella as protection against the rain were the ancient Romans. During the Middle Ages,the use of the umbrella practically disappeared.Then it appeared?again in Italy in the late sixteenth century.And again it was considered a symbol of power and authority.By 1680,the umbrella appeared in France,and later on in England. By the eighteenth century,the umbrella was used against rain throughout most of Europe.Umbrellas have not changed much in style during all this time,though they have become much lighter in weight.It wasn′t until the twentieth century that women′s umbrellas began to be made,in a whole variety of colours. This passage talks mainly about__
A.how the umbrella was invented
B.why the umbrella was so popular in Europe
C.the development of the umbrella
D.who needed umbrella first

[单选题]"It seems that she was there at the conference." The sentence means that __________.
A.she seems to be there at the conference
B.she seemed to be there at the conference
C.she seems to have been there at the conference
D.she seemed to being there at the conference

[单选题]In a world where it seems we already have too much to do, and too many things to think about, it seems the last thing we need is something new that we have to learn. But use cases do solve a problem with requirements:with （71） declarative requirements it's hard to describe steps and sequences of events. Use cases, stated simply, allow description of sequences of events that, taken together, lead to a system doing something useful.As simple as this sounds,this is important. When confronted only with a pile of requiements, it's often（72）to make sense of what the authors of the requirements really wanted the system to do.In the preceding example, use cases reduce the ambiguity of the requirements by specifying exactly when and under what conditions certain behavior occurs;as such, the sequence of the behaviors can be regarded as a requirement. Use cases are particularly well suited to capture approaches. Although this may sound simple, the fact is that （73） requirement capture approaches, with their emphasis on declarative requirements and "shall" statements,completely fail to capture fail to capture the （74） of the system's behavior. Use cases are a simple yet powerful way to express the behavior of the system in way that all stakeholders can easily understand. But,like anything, use cases come with their own problems, and as useful as they are,they can be （75）. The result is something that is as bad, if not worse, that the original problem.Therein it's important to utilize use cases effectively without creating a greater problem than the one you started with.
A.misapplied
B.applied
C.used
D.powerful

[单选题]In a world where it seems we already have too much to do,and too many things to think about,it seems the last thing we need is something new that we have to learn.But use cases do solve a problem with requirements:with__1__declarative requirements it's hard to describe steps and sequences of events.Use cases,stated simply,allow description of sequences of events that,taken together,lead to a system doing something useful.As simple as this sounds,this is important.When confronted only with a pile of requirements,it's often__2__to make sense of what the authors of the requirements really wanted the system to do.In the preceding example,use cases reduce the ambiguity of the requirements by specifying exactly when and under what conditions certain behavior occurs;as such,the sequence of the behaviors can be regarded as a requirement.Use cases are particularly well suited to capturing these kind of requirements.Although this may sound simple,the fact is that__3__requirement capture approaches,with their emphasis on declarative requirements and"shall"statements,completely fail to capture the__4__of the system's behavior.Use cases are a simple yet powerful way to express the behavior of the system in way that all stakeholders can easily understand.But,like anything,use cases come with their own problems,and as useful as they are,they can be__5__.The result is something that is as bad,if not worse,than the original problem.Therein it's important to utilize use cases effectively without creating a greater problem than the one you started with. 2、_____
A.impossible
B.possible
C.sensible
D.practical

[单选题]—The boss wants to talk to you．He seems unhappy with your performance． —Oh,I?be in trouble．I hope he won′t fire me．
A.Must
B.can
C.Should
D.would