6、组成核酸的单位“　　　　　 ”它的全称是 (　　 )

A．尿嘧啶脱氧核糖核苷酸　　　　 B．尿嘧啶核糖核酸

C．尿嘧啶核糖核苷酸　　 　　　　 D．鸟嘌呤核糖核苷酸

5、下列生物中不属于真核生物的是(　　 )

①水绵　　 ②颤藻　　　　 ③酵母菌　　 ④噬菌体

A．①② 　　 B．①③　　 　 C．②③　 　　 D．②④

4、组成蛋白质的氨基酸之间的肽键结构式正确的是(　　 )

A．NH-CO　　 B．-NH-CO-　　 C．-NH₂-COOH-　　 D．NH₂-COOH

3、为测定组织细胞中是否有脂肪存在，常用的试剂是 (　　 )

A．苏丹Ⅲ染液　 B．碘液　　 C．班氏试剂　 　 D．龙胆紫染液

2、绿色植物和高等动物不同之处在于(　　 )

A．能适应环境　 B．能固定CO₂　　 C．具有抗病能力 D．可进行呼吸作用

1分题：

1、古诗云：“春蚕到死丝方尽，……”。下列有关“蚕丝”的叙述正确的是(　　 )

A．　 组成蚕丝的基本单位是核苷酸　 　

B．蚕丝形成过程中有一定有水产生

C．蚕丝服装可以用加酶洗衣粉清洗　

D．蚕丝中一定含有的化学元素是C、H、O、N、P、Mg

106.Write at least 60 words about the topic “Homework in our study”. (以“我们学习中的家庭作业”为题写一篇至少60字的短文，标点符号不占格)。

　(注意：短文中不得出现考生的姓名、校名及其他相关信息，否则不予评分。)

Use the following points as a guide(短文须包含下列要点)：

?　　　　 What do you think of homework in your study?

?　　　　 Why do you do your homework every day?(At least two reasons)

?　　　　 Is there too much homework in your daily life?

?　　　　 What do you want to say to your teacher or your parents?

Homework in our study

_____ ______ ______ ______ ______ ______ ______ ______ _______ ______ _______ _____

_____ ______ ______ ______ ______ ______ ______ ______ _______ ______ _______ _____

_____ ______ ______ ______ ______ ______ ______ ______ _______ ______ _______ _____

_____ ______ ______ ______ ______ ______ ______ ______ _______ ______ _______ _____

_____ ______ ______ ______ ______ ______ ______ ______ _______ ______ _______ _____

虹口区2009学年度第二学期初三英语

B

When my son, Mark, was in the third grade, he saved all his pocket money for over three months to buy holiday presents for those he loved. The third Saturday in December Mark said that he had made his list and had twenty dollars in his pocket.

I drove him to a nearby supermarket. Mark picked up a hand basket and went off on his own while I waited patiently reading a book in the car. It took Mark over 45 minutes to choose his presents. The clerk rang in his purchases(把他所购物品输入现金出入记录器) as I politely looked the other way. Mark kept within his budget(预算)and reached into his pocket for his money. It was not there! There was a hole in his pocket, but no money. Mark stood in the middle of the store holding his basket, tears(眼泪) rolling down his cheeks. His whole body was shaking with his sobs. Then an amazing thing happened. A customer in the store came up to Mark. She knelt down and took him in her arms.

“You would do me the greatest favour if you let me replace(补还)your money,” said the woman. “It would be the most wonderful present you could ever give me. I only ask that one day you pass it on. One day, when you are grown-up, I would like you to find someone you can help. When you help this other person, I know you will feel as good about it as I do now.”

Mark took the money, dried his tears and ran to the checkout counter as fast as he could. I think we all enjoyed our gifts that year almost as much as Mark enjoyed giving them to us.

I would like to say “thank you” to that very kind woman. I would like to tell her that four years later Mark went house to house collecting blankets and clothes for the homeless people in the Oakland fire－and he thought of her. And I want to promise her that Mark will never forget to keep passing it on.

Choose the best answer(根据短文内容，选择最恰当的答案): (共7分)

78.(　 ) Mark saved all his pocket money to _____.

　　　 A. make his list　　　　　　　　　　　　　 B. buy holiday presents　

　　　 C. have his money in his pocket　　 D. shop in a nearby supermarket

79.(　 ) What was Mark’s parent doing when he was in the supermarket?

　　　 A. Reading a book.　　　　　　　　　　　 B. Looking the other way.

　　　 C. Choosing presents.　　　　　　　　　 D. Ringing in his purchases.

80.(　 ) Why was his tears rolling down his cheeks?

　　　 A. Because he wanted to buy too many things.

　　　 B. Because he didn’t keep within his budget.

　　　 C. Because his money was missing.

　　　 D. Because there was a hole in his pocket.

81.(　 ) What does the underlined word “sobs” mean ?

　　　 A. 抽泣　　　　　　　　 B. 怒骂　　　　 C. 拳打脚踢　　　　　　　　 D. 点头

82.(　 ) What did the woman want to do? She wanted to _____.

　　　 A. ask for a favour　　　　　　　　　　　 B. replace his money

　　　 C. took Mark in her arms　　　　　　 D. knelt down

83.(　 ) What did the woman ask Mark to do? She asked Mark to _____.

　　　 A. give her a wonderful present　　 B. give her love

　　　 C. feel good about himself　　　　　　 D. help others in need like her

84.(　 ) What’s the best title of the passage?

　　　 A. Love is great.　　　　　　　　　　　　　 B. Love between Mark and a kind woman.

　　　 C. Love is for giving.　　　　　　　　　 D. Love between Mark and his parent.

C. Choose the words or expressions and complete the passage(选择最恰当的单词或词语　　 完成短文):(共14分)　　　　　　　

Sim Jae-duck is 74 years old and the founder(创始人) of the World Toilet Association(厕所协会). He was born in a restroom. “My mother followed advice from my grandmother that people born in restrooms will ___85___ long lives,” Sim said. Now he plans to live and die in a toilet-shaped house.

The large glass building was built in Suweon, a Korean city. There are two bedrooms and two guest rooms ___86___ the rooms. The house, of course, has three expensive toilets.

“There is a display bathroom behind glass for all to see. The other toilets have water saving features,” Sim said. “My family has ___87___ agreed to keep this house as a symbol(象征)of South Korea’s new toilet ____88___ after my death. The house will be remembered as an example of saving people from diseases and protecting the environment.”

The main bathroom has a machine that produces a mist(液体喷雾) ___89___others can’t see the people in the bathroom. That can make users feel ____90____.The toilet seat will be raised as people enter and music will play.

Sim’s advice has changed public toilets into clean and beautiful resting places. Now the public toilets in Suweon are ____91____ paintings, fresh flowers or even small gardens. They are places that protect human health.

85. A. take　　　　　　　　　　 B. enjoy　　　　　　　　 C. welcome　　　　　　　　　 D. show

86. A. besides　　　　 　　 B. behind　　　　　　　 C. among　　　　　　　　　　　　　　 D. ahead

87. A. nearly　　　　　　　　 B. already　　　　　　　 C. almost　　　　　　　　　　　 D. yet

88. A. process　　　　　　　 B. gift　　　　　　　　　 C. culture　　　　　　　　　　　　　　 D. manner

89. A. so that　　　　　　　　 B. because　　　　　　 C. unless　　　　　　　　　　　 D. although

90. A. excited　　　　　　　　 B. terrible　　　　　　　 C. tired　　　　　　　　　　　　 D. safe

91. A. covered with　　　　　　　　　　　　　　　　　　　　　 B. made of

　　　 C. used to　　　　　　　　　　　　　　　　　　　　　 D. decorated with　　　　　　　　　　　　　　

D. Read the passage and fill in the blanks with proper words(在短文的空格内填入适当的词，使其内容通顺，每空格限填一词，首字母已给):(14分)

The government employs(雇佣) many people to help take care of our society. However, they cannot help out every one just by themselves. They need our help! Consider Volunteering!

What Is Volunteering?

Volunteering is when we regularly go and do nice things for other people. There are many t__92__ of volunteers. Volunteers may help out in local retirement homes, or in hospitals. Some volunteers work with poor people and other volunteers help teach orphaned children to read.

Volunteering Teaches Mature(成熟) Thinking

Volunteering is something that really helps us. It gives us a chance to stop complaining about our own lives, and realized e__93__ how lucky we are. We are able to see the people who really need help. Volunteering also teaches us more a__94__ responsibility, patience, empathy(同情心), and above all, compassion(爱心).

Ways to Start Volunteering

There are many places that you can go to try to start volunteering. Here are just a few places you can go and what you can do at each place.

Hospital－ask if you can go and visit people who are really s__95__. Sometimes all they need is just someone who will t___96___ with them, or someone to give them hope.

Orphanage(孤儿院) －the children living here really need someone to p__97__ with them.

Whatever you decide to do, just do the b__98__you can.

E. Answer the questions(根据短文内容回答下列问题): (共14分)

When Robert was about two years old, he tried to remove a bottle of milk from the refrigerator but it fell, spilling (洒出) milk all over the kitchen floor.　　　　　　　　　　 　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　

When his mother came into the kitchen, instead of shouting at him or punishing him, she said, “Robert, what a great and wonderful mess you have made! I have rarely seen so much milk. Well, the damage has already been done. Would you like to get down and play in the milk for a few minutes before we clean it up?”

Indeed, he did. After a few minutes, his mother said, “You know, Robert, whenever you make a mess like this, eventually you have to clean it up and restore everything to its proper order.”

After they cleaned up the spilled milk, his mother then said, “ You know, what we have here is a failed experiment in how to effectively carry a big milk bottle with two hands. Let’s go out in the back yard and fill the bottle with water and see if you can discover a way to carry it without dropping it.”

The little boy learned that if he grasped the bottle at the top near the lip with both hands, he could carry it without dropping it. At that moment he knew he didn’t need to be afraid to make mistakes. Instead, he learned that mistakes were just good chances for learning something new, which is, after all, what scientific experiments are all about. Even if the experiment “doesn't work”, we usually learn something valuable from it.

99. What happened to the bottle when Robert tried to remove it form the refrigerator?

　　　 _______________________________________________________________.

100. Did his mother shout at him or punish him?

　　　 _______________________________________________________________.

101. Would Robert like to get down and play in the milk for a few minutes before cleaning it up?

　　 _______________________________________________________________.

102. Who cleaned up the spilled milk?

　　　 _______________________________________________________________.

103. What did his mother encourage him to do in the back yard?

　　　 _______________________________________________________________.

104. How could he carry the bottle without dropping it?

　　　 _______________________________________________________________.

105. After reading the story, what do you think of making mistakes?

　　 _______________________________________________________________.

　　　　　　　　　　 　　　　　　　　　A

The Shanghai Expo Park is 5.28 km². There are about 170 pavilions(馆) in the park. Join us on our trip to some of them. We hope it will help you to find the places you are interested in.

l　　　　 The China Pavilion

It is the largest pavilion in the park. The huge red building has three parts about China’s history, China’s ancient architecture(建筑)and China’s future. You can see an 8-minute movie about the changes in Chinese cities over the past 30 years.

l　　　　 The Germany Pavilion

Want to see what life is like in a German city? Go to the city tunnel! The scent of flowers and the singing of birds will make you feel like you are in a German park. If you visit “Energy Source” show, you’ll see a magic metal ball. The louder you shout, the more the ball will swing!

l　　　　 The UK Pavilion

British people put 60,000 seeds in their pavilion. Through these seeds, they show their respect for nature. If you can’t go to Shanghai, you can find out all about the UK Pavilion at its official website.

l　　　　 The Japan Pavilion

Japan is a kingdom of robots. Robots there can speak, walk, climb and even kick balls. Japan will bring its latest robots to Shanghai.

l　　　　 The Belgium(比利时)Pavilion

Almost everything in the pavilion will move. The walls are moving. Moving pictures show different parts of Belgium. There will also be a Chinese shadow(皮影戏)center. A small chocolate factory at the pavilion will make free chocolate for visitors.

l　　　　 The Russian Pavilion

Here you’ll find a spaceship. The roof is a window of the spaceship. We can see the dream space cities of the future. We can also find new inventions made by Russian youth in every corner.

True or False(判断下列句子是否符合短文内容，符合的用“T”表示，不符合的用“F”表示): (7分)

71. There are more than 170 pavilions in the park.

72. The China Pavilion is the largest one.

73. We can go to the Germany Pavilion to see a magic glass ball.

74. British people put 6,000 seeds in their pavilion.

75. If you like robots, go to the Japan Pavilion.

76. There will be a Chinese shadow center at the China Pavilion.

77. The Russian Pavilion will help to see the dream space stations of the future.

70.　 She asked the man… Are you waiting for anybody here?(合并为一句)

She asked the man _____ he _____ waiting for somebody here.

Part 3　 Reading and Writing (第三部分 读写) (共74分)