慢性肝炎，通过血液、母婴传播的是（）。A、甲肝病毒 B、乙肝病毒 C、丙肝病毒 D、丁型肝

In the United States, when one becomes rich, he wants people to know it. And even if he does not become very rich, he wants people to think that he is. That is what “keeping up with the Joneses” is about. It is the story of someone who tried to look as rich as his neighbours.

The expression was first used in 1913 by a young American called Arthur Momand. He told this story about himself. He began earning $ 125 a week at the age of 23. That was a lot of money in those days. He got married and moved with his wife to a very wealthy neighbourhood outside New York City. When he saw that rich people rode horses, Momand went horseback riding every day. When he saw that rich people had servants, Momand and his wife also hired a servant and gave big parties for their new neighbours.

It was like a race, but one could never finish his race because one was always trying to keep up. The race ended for Momand and his wife when they could no longer pay for their new way of life. They moved back to an apartment in New York City.

Momand looked around him and noticed that many people do things just to keep up with rich lifestyle of their neighbours. He saw the funny side of it and started to write a series of short stories. He called it “Keeping up with the Joneses” because “Jones” is a very common name in the United States. “Keeping up with the Joneses” came to mean keeping up with rich lifestyle of the people around you. Momand’s series appeared in different newspapers across the country for over 28 years.

People never seem to get tired of keeping up with the Joneses. And there are “Joneses” in every city of the world. But one must get tired of trying to keep up with the Joneses because no matter what one does, Mr. Jones always seems to be ahead.

小题1:Some people want to keep up with the Joneses because they ________.

A．want to be as rich as their neighbours

B．want others to know or to think that they are rich

C．don’t want others to know they are rich

D．want to be happy小题2:It can be inferred (推断) from the story that rich people like to ________.

A．live outside New York City

B．live in New York City

C．live in apartments

D．have many neighbours小题3:Arthur Momand used the name “Jones” in his series of short stories because “Jones” is ________.

A．an important name

B．a popular name in the United States

C．his neighbour’s name

D．not a good name小题4:If a person who keeps up with the Joneses, he would _________.

A．do as the poor persons around him do

B．do everything he likes to do

C．do as his neighbours do

D．do as the rich people around him do

He stood up,      the large door and looked outside. There on the ground lay a white dog.

A．opens

B．opened

C．opening

D．having opened

（4分）小明利用如图所示的装置测量蜡块（＜）的密度，并进行了如下操作：

a、如图甲，蜡块静止时，弹簧测力计的示数为F₁。

b、如图乙，用细线将金属球系在蜡块下方，将它们浸没在水中静止时，弹簧测力计的示数为F₂。

c、如图丙，将蜡块拉出水面静止时，弹簧测力计的示数为F₃。

请针对以上操作回答下列问题：

（1）在b操作中将蜡块和金属球逐渐浸入水的过程中，发现弹簧测 力计的示数逐渐变小，说明浮力的大小与          有关。

（2）该蜡块密度的表达式为=         （水的密度用表示）

（3）以上操作顺序会使测得的密度比实际密度        ，为使测量值更准确，甲、乙、丙的合理顺序应为          。

与现代体育场最为相似的古建筑是[ ]

A．空中花园

B．万神殿

C．金字塔

D．古罗马竞技场

形体练习时，大多采用（）方式为宜。