If we observe carefully, we van find that most of the flowers in nature are red, orange and yellow. If we have seen a black flower, it’s a chance in million. People have made a census(普查)to colours of more than four thousand kinds of flowers and discovered that only eight of them are black. Why?
As we know, sunlight is formed by seven different kinds of coloured light. The wave length of each light changes, so the quantity of heat in each light changes, too. Flowers, especially their petals(花瓣), are very delicate(纤弱) and prone(易于) to the harm caused by high temperature. Black flowers can take in all the light waves, which cause the flowers to dry up in a high temperature. So black flowers can rarely survive sunlight. But red flowers, orange flowers and yellow flowers can protect themselves from sunlight by reflecting the red light, orange light and yellow light, each of which has a large quantity of heat.
That is why red, orange and yellow flowers are very common in nature while black flowers are so rare.
1.We can hardly find black flowers because _____.
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A．they are so weak that it’s difficult for them to grow up |
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B．there are no black flowers in the world. |
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C．the petals of black flowers are very delicate |
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D．they can take in the light of all wave lengths, which make the flowers dry up |
2. Sunlight is formed by _____.
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A．many different kinds of coloured light |
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B．three different kinds of coloured light—red, orange and yellow |
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C．seven different kinds of coloured light |
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D．four thousand kinds of coloured light |
3.The red, orange or yellow light contains _____.
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A．less heat than the other lights |
B．more heat than the other lights |
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C．a great deal of heat |
D．a little heat |
4.“It is a chance in a million” means_____________
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A．it is common |
B．it is extremely rare |
C．it’s lucky |
D．it’s impossible |
阅读理解（共15小题；每小题2分，满分30分）
阅读下列短文，从每题所给的四个选项（A、B、C和D）中，选出最佳选项，并在答题卡上将该项涂黑。
Education for Japanese children is free for the first nine years and all children must go to school for six years of primary schooling and three years of secondary schooling. In the primary and secondary school, about 99.9% of school-age children are present. School usually begins at 8 o’clock in the morning and ends at 3 o’clock in the afternoon on weekdays and at noon on Saturdays. The school year begins in April and ends in March. There is a summer holiday in August and a winter holiday during the New Year season.
After nine years of schooling, students can enter the three-year high school by passing an examination and by paying a small charge each year. After high school, students can go on to study at different kinds of colleges, usually for four years. There are also two-year junior colleges.
1. The passage mainly discusses _____________.
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A．colleges in Japan |
B．free education in Japan |
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C．education in Japan |
D．school time in Japan |
2.If you want to go to high school in Japan, you must ______________________.
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A．pay a small amount of money |
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B．study at primary and secondary school for 9 years |
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C．take part in the exam and pay a little money |
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D．pass the exam and pay a little money |
3. What is not mentioned in the passage?
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A．Types of colleges. |
B．Times for schooling |
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C．The teaching staff(教职员工) |
D．The number of children attending schools |
4.How many days do the Japanese students have to go to school every week?
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A．Two days |
B．Four and a half days |
C．Five days |
D．Five and a half days |
完形填空（共20小题；每小题1.5分，满分30分）
阅读下面短文，从短文后各题所给的四个选项（A、B、C和D）中，选出可以填入空白处的最佳选项，并在答题卡上将该项涂黑。
It had been a tiring day and I was looking forward to a quiet evening. My __36__ would not be back until late and I had __37__ to sit comfortably in a chair in the _38___ room and read a good book. I put the children to bed _39__ and prepared a cup of coffee for myself. Soon I was seated comfortably with my__40___ in front of me and the sandwich and the cup of coffee on a small table beside me.
I was just beginning to __41__ the food when the telephone rang. I put down my book and hurried to __42___ it. By the time I got back to the living room, my coffee was__43__. I ate the sandwich and begin__44___ cold coffee with the book _45___ open to the front page. _46___ there was a loud knock at the front_47___. It surprised me so much that I spilled (洒)some coffee on my skirt. The man at the door was looking __48___ a certain address and __49___ me to give him some information. It _50___ me a long time to explain something to him. After that , I sat down again and __51__ to read a whole page without further interruption(打扰) --- until the baby woke up. He started __52__ at the top of his voice, __53__ I run upstairs quickly. He was still awake at 11 o’clock when my husband came back. I really wanted to throw something __54____ him when he asked me if I had spent a ___55____ evening.
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_______ is our belief that improvement in health care will lead to a stronger, more prosperous economy
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A．As |
B．That |
C．This |
D．It |
If she ________ medicine earlier, she _______ ill now.
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A．takes; won’t be |
B．took; wouldn’t be |
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C．had taken; wouldn’t have been |
D．had taken; wouldn’t be |
As we know, a good farmer can ______ a deserted place into a rich land.
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A．translate |
B．build |
C．transform |
D．tease |
