实验发现葡萄糖进入红细胞时,如果使用药物限制蛋白质的活性,则葡萄糖的运输速率迅速下降

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问题:

实验发现葡萄糖进入红细胞时,如果使用药物限制蛋白质的活性,则葡萄糖的运输速率迅速下降,如果减少能量的供应,却对运输没有影响。由此推断葡萄糖进入红细胞的方式是()

A.自由扩散

B.主动运输

C.协助扩散

D.逆浓度梯度运输

考点:高中生物物质进出细胞的方式物质进出细胞的方式题库
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朱砂安神丸中配伍黄连的意义是().

A.泻火解毒

B.清热躁湿

C.清心泻火

D.清热解毒

E.清胃泻火

题型:单项选择题

患者入院后护士收集相关资料可以除外的是()。

A.患者的年龄、民族、职业、宗教信仰

B.患者的对健康和疾病的认识、精神及情绪状态

C.患者的现病史

D.患者的手术、过敏史

E.患者家庭成员的生活方式

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I wasn’t surprised when I read that actress Helen Hunt recently stated that she would never allow her young daughter to become a child star. Ms Hunt is the daughter of a Hollywood technical director, and grew up in Hollywood. Now in her late 40s, she started acting and modeling when she was eight and has probably seen a lot over those years in show business.

She has had a successful career. She earned four Golden Globes and four Emmys. She also attained the top honor of her profession when she won the Best Actress Academy Award for her role in the 1992 movie, As Good As It Gets. Given those accolades, Ms Hunt is successful. There is no doubt that her early experiences as a child star prepared her for what has been an outstanding adult career. Given those achievements, why would this star declare she’ll never allow her daughter, now at the age of six, to follow in her footsteps?

Everyone familiar with the entertainment scene is aware of the reasons for her attitude. Recent tabloid (小报) news headlines featuring the troubles of former child stars, among them Lindsay Lohan, Britney Spears and the late Gary Coleman, may answer the question. Although Ms Hunt managed to become a successful grown-up star, she apparently believes she’s an exception.

What Ms Hunt may be suggesting is that many very young stars go through unnatural childhoods on movie and TV sets. While they’re earning big incomes, they’re so pampered (纵容) by directors and praised by fans; they may get false impressions that their lives will always be that way. Then, within a few years, when faced with reality, they’re hurt and confused. After all the overwhelming affection, they find they can’t deal with the problems. That’s often when drugs and alcohol take over their lives.

Helen Hunt has some other reasons why she doesn’t want her daughter to be in the entertainment business. Many child stars can never make a successful transition to meaningful adulthood. However, as with many Hollywood movies, I believe there are both good and bad scenes about how it can be played out in real life.

小题1:According to the passage, Ms Hunt _________.

A.started acting and modeling when she was a little girl

B.has been acting for about 30 years

C.is the daughter of a famous actor

D.started singing when she was eight小题2:The underlined word “accolades” in Paragraph 2 probably means “_________”.

A.difficulties

B.awards

C.salaries

D.opinions小题3:The author thinks Helen Hunt’s success is mainly due to _________.

A.her hard work

B.the help of a technicaldirector

C.her experiences as a child star

D.her talent and good luck小题4:Helen Hunt wouldn’t allow her daughter to become a child star because she thinks _________.

A.child stars often take drugs and alcohol

B.being a child star may ruin her future

C.child stars aren’t able to solve their problems

D.it is difficult to succeed as a child actor小题5:From the passage we can conclude that _________.

A.few child stars will succeed in the future

B.there is no way to save the entertainment business

C.the author has a different opinion about child stars

D.meaningful adulthood only belongs to non-child stars

题型:单项选择题

爆炸危险物质中,属于第Ⅲ类危险物质的是( )。

A.爆炸性气体

B.矿井甲烷

C.爆炸性粉尘

D.蒸气

题型:单项选择题

The telegram after unloading proceed manla in ballast indicates that the ship will proceed to Manila().

A.with dangerous cargo

B.for discharging

C.with no cargo on board

D.for taking ballast

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