如图所示,一箱苹果沿着倾角为θ的斜面,以速度V匀速下滑,在箱子中夹有一只质量为m

题型:选择题

问题:

如图所示,一箱苹果沿着倾角为θ的斜面,以速度V匀速下滑,在箱子中夹有一只质量为m的苹果,它受到周围苹果对它作用力的方向是(   )

A.沿斜面向上

B.沿斜面向下

C.竖直向上

D.垂直斜面向上

考点:牛顿第二定律
题型:选择题

下图表示的是种群年龄组成的三种类型。下列有关其种群密度增长趋势的表示中,正确的是

[ ]

A.a<c<b

B.a<b<c

C.a>c>b

D.a>b>c

题型:选择题

中国古代最大的一部丛书是______。

A.《永乐大典》

B.《古今图书集成》

C.《天工开物》

D.《四库全书》

题型:选择题

In the ______ house the firefighters saved a lot of______ people, but they couldn't be sent to the

hospital because of the blocked road.

[      ]

A. damaged; ruined

B. destroyed; damaged

C. damaged; injured

D. destroyed; ruined

题型:选择题

设备监理是指依法设立的设备监理单位受建设项目( )委托,根据供货合同和设备监理合同的约定,按照有关法律、法规、技术标准,对重要设备的设计等过程的质量、进度等实施监督管理。

A.施工企业

B.投资人

C.主管部门

D.业主

题型:选择题

When something goes wrong,it can be very satisfying to say,”Well,it’s so-and-so’s fault.”or “I know I’m late,but it’s not my fault;the car broke down.”It is probably not your fault,but once you form the habit of blaming somebody or something else for a bad situation,you are a loser. You have no power and could do nothing that helps change the situation. However,you can have great power over what happens to you if you stop focusing on whom to blame and start focusing on how to remedy the situation. This is the winner’s key to success.

Winners are great at overcoming problems. For example, if you were late because your car broke down, maybe you  need to have your car examined more regularly. Or, you might start to carry along with you the useful phone numbers, so you could call for help when in need. For another example, if your colleague causes you problems on the job for lack of responsibility or ability, find ways of dealing with his irresponsibility or inability rather than simply blame  the person. Ask to work with a different person, or  don’t rely on the person. You should accept that the person. Ask to work with a different person, or don’t rely on this person. You should accept that the person is not reliable and find creative ways to work successfully regardless of how your colleague fails  to do his job well.

This is what being a winner is all about—creatively using your skills and talents so that you are successful no matter what happens. Winners don’t have fewer problems in their lives; they have just as many difficult situations to face as anybody else. They are just better at seeing those problems as challenges and opportunities to develop their own talents. So, stop focusing on “whose fault it is.” Once you are confident about your power over bad situations, problems are just stepping stop on for success.

1. According to the passage, winners__________

A. deal with problems rather than blame others

B. meet with fewer difficulties in their lives

C. have responsible and able colleagues

D. blame themselves rather that others

2.The underlined word remedy in Paragraph 1 is closest in meaning to__________.

A. avoid                B. accept               C. improve                  D. consider

3.When your colleague brings about a problem, you should__________.

A. find a better way to handle the problem

B. blame him for his lack of responsibility

C. tell him to find the cause of the problem

D. ask a more able colleague for help

4. When problems occur, winners take them as__________

A. excuses for their failures

B. barriers to greater power

C. challenges to their colleagues

D.chances for self-development

5. Which of the following is the best title for the passage?

A. A Winner’s Secret.                               B. A Winner’s Problem.

C. A Winner’s Opportunity.                       D. A Winner’s Achievement.

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