试题与答案

把一个直径是2分米的圆柱的底面分成许多相等的扇形,然后沿直径把圆切开,拼成一个和

题型:解答题

题目:

把一个直径是2分米的圆柱的底面分成许多相等的扇形,然后沿直径把圆切开,拼成一个和它体积相等的长方体,这个长方体表面积比原来圆柱的表面积增加8平方分米,这个长方体的体积是多少?

答案:

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题型:完形填空

Directions: Complete the passage below with the correct forms of the given words and phrases in the column (ONE is extra).

motivation       Positive        remain          accomplish         guarantee 

Appreciate       go after           however         Apart from         hardship    

When we talk about happiness, we’ll naturally relate it to  1  or pleasant emotions. Many people consider happiness to be their ultimate (最终的) goal in life that they will spend their whole lives  2 . Then how can we achieve happiness?

One effective way is to try to  3  in good spirits anytime and anywhere. Contrary to the belief that happiness comes hand in hand with much wealth, money is never enough to  4  happiness. What we simply need to do is  5  the precious things we have in life, such as good health, family and friends. The secret to obtaining happiness is perfectly explained in the proverb “Happy is he who is content (知足的)” .

 6  staying optimistic, one can also gain happiness by  7  something meaningful. For instance, doing charity work and volunteering to help those in need can give you a sense of happiness as you realize you are doing your part for a better world.

Never quit seeking after happiness because of the fear inside or the  8  outside. Everyone has the right to pursue happiness and will surely find it with enough courage and  9 .

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