问答题：家用电器行业的平均收益率为18%，息税前利润的平均标准离差率为0.5，无风险收益率为

题型：阅读理解

As we all know, the ocean moves. But waves breaking on the beach make the ocean fun. When you stand on the shore and look at the waves, it seems like the water is moving towards you. But the water is not really moving forward. The moving you see is wave energy. And wave energy comes from the wind.

Let’s think about how this works. As wave energy passes through the water, the energy makes particles （粒子） of water move up and down. Just give you an example of a wave passing under a basketball. We put a basketball on the sea. When the wind blows, a wave comes from behind the basketball. The basketball moves up to the top with the wave. Then the wave continues and leaves the basketball behind. The basketball looks lower, but it doesn’t move forward. That’s because the wave energy just moves the water which is under the basketball.

　 So why can you see a wave knock you down on the shore？When a wave moves toward the shore, the bottom of the wave slows down because it meets the ocean floor. But the top, which is called crest(浪峰), keeps moving. The different action causes the wave to fall over or break onto the shore. If a wave is very large, it carries a lot of energy when it hits the land. As time goes by, waves can break up and carry away the rocks and other things on the shore. Shorelines are changing all the time because of wave action.

小题1:______ is really moving forward when you look at the wave.

A．Water

B．The basketball

C．Water and wave energy

D．Wave energy小题2:Match the sentences with the pictures and the right answer.

(1) The basketball moves up to the top with the wave.

(2) The basketball continues and leaves the basketball behind.

(3) When the wind blows, a wave comes from behind the basketball.

A．a—(2) b—(1) c—(3)

B．a—(3) b—(1) c—(2)

C．a—(1) b—(3) c—(2)

D．a—(3) b—(2) c—(1)小题3:Which of the following is NOT true according to the passage?

A．Wave energy comes from the water.

B．Large waves carry plenty of energy.

C．Wave action makes shorelines change all the time.

D．The bottom of the wave is easy to slow down.小题4:The underlined word “it” ( Paragraph 3) refers to “________”.

A．particles of water

B．the shore

C．the wind

D．the bottom of the wave小题5:The main idea of this passage is ______.

A．what makes particles of water move

B．how a basketball moves on the ocean

C．how wave energy causes wave action

D．why a wave can knock you down

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题型：解答题

已知：关于x的方程x²-（k+1）x+

1

4

k²+1=0的两根是一个矩形两邻边的长．
（1）k取何值时，方程有两个实数根；
（2）当矩形的对角线长为

5

时，求k的值．

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题型：阅读理解

“I never expected that I would be so busy. Why can’t there be 25 hours in a day?” complained Liu Ran in Hong Kong as mid – term exams were going on.

The 18 – year – old girl was Shandong Province’s top scorer in this year’s college entrance examination. After graduating from Tai’ an No. 1 High School, she chose the Chinese University of Hong Kong, although two famous universities in mainland promised her a place.

“I want to experience a more international school and social life in Hong Kong. I’m majoring in（主修）journalism, so Hong Kong will surly help widen my horizons,” Liu said.

It is two months since Liu first set foot on Hong Kong. She missed home a lot at the beginning, because of the food and language problems.

“The canteen offers mostly Western or Guangdong food, but it’s convenient to cook for ourselves in our dormitory if we like. People speak Cantonese and almost all classes are in English,” Liu explained.

Her English and Cantonese are now both improving, but she still needs more time to adapt to the new environment.

“I’m happy that I made the right decision to study here. With a mix of the Eastern and Western cultures, there is so much to discover and learn,” she said.

Liu has 18 credit hours of classes every week and 23 non – credit hours every other week. She has signed up for four associations including the Chinese Language Debating Team and the drama club. Essays, book reports and presentations also take plenty of time to prepare.

小题1:What would be the best title for the text?

A．Hong Kong dreams

B．Looking for a job in Hong Kong

C．Social life in Hong Kong

D．the Chinese University of Hong Kong小题2:Liu Ran chose the Chinese University of Hong Kong .

A．to see more of an international school and social life