Itisahotsummerday，andyoufeelth-优题课

With only about 1, 000 pandas left in the world, China is desperately trying to clone(克隆) the animal and save the endangered species. That’s a move similar to what Texas A & M University researchers have been undertaking for the past five years in a project called “Noah’s Ark”.
Noah’s Ark is aimed at collecting eggs, embryos(胚胎), semen and DNA of endangered animals and storing them in liquid nitrogen(氮). If certain species should become extinct, Dr. Duane Kraemer, a professor in Texas A & M’s College of Veterinary Medicine, says there would be enough of the basic building blocks to reintroduce the species in the future.
It is estimated that as many as 2, 000 species of mammals, birds, reptiles will become extinct in over 100 years. The panda, native only to China, is in danger of becoming extinct in the next 25 years.
This week, Chinese scientists said they grew an embryo by introducing cells from a dead female panda into the egg cells of a Japanese white rabbit. They are now trying to implant the embryo into a host animal.
The entire procedure could take from three to five years to complete.
“The nuclear transfer(核子移植) of one species to another is not easy, and the lack of available(capable of being used) panda eggs could be a major problem,” Kraemer believes. “They will probably have to do several hundred transfers to result in one pregnancy (having a baby). It takes a long time and it’s difficult, but this could be groundbreaking science if it works. They are certainly not putting any live pandas at risk, so it is worth the effort,” adds Kraemer, who is one of the leaders of the Project at Texas A& M, the first-ever attempt at cloning a dog.
“They are trying to do something that’s never been done, and this is very similar to our work in Noah’s Ark. We’re both trying to save animals that face extinction. I certainly appreciate their effort and there’s a lot we can learn from what they are attempting to do. It’s a research that is very much needed.”
60. The aim of “Noah’s Ark” project is to _______.
A. make efforts to clone the endangered pandas
B. save endangered animals from dying out
C. collect DNA of endangered animals to study
D. transfer the nuclear of one animal to another
61. According to Professor Kraemer, the major problem in cloning pandas would be the lack of _______.
A. available panda eggs B. host animals
C. qualified researchers D. enough money
62. The best title for the passage may be _______.
A. China’s Success in Pandas Cloning
B. The First Cloned Panda in the World
C. Exploring the Possibility to Clone Pandas
D. China —the Native Place of Pandas Forever
63. From the passage we know that _______.
A. Kraemer and his team have succeeded in cloning a dog
B. scientists try to implant a panda’s egg into a rabbit
C. Kraemer will work with Chinese scientists in clone researches
D. about two thousand of species will probably die out in a century

四、阅读理解
Learning online should make use of a number of Internet tools: e-mail lets you exchange letters between continents very cheaply and almost immediately. Large groups of people can share their discussions by using electronic lists to send every letter to everyone on the list. Electronic magazines bring you up-to-date topics, such as news, arts, and sports. Search engines allow you to look for anything you want on the Internet, including the holdings of major libraries. In a chat room you can have a real-time written talk. Audio and video bring the world to your computer -— you can listen to the world's radio stations, watch the evening news from another continent. And in an online conference you can even talk to your teacher and fellow students abroad.
Do you have e-mail? How much do you communicate with your friends over the Internet? Internet, the newest child in technology, is like a modern communication highway. It's also a kind of super-shop, almost anything you can buy in a store -— you can get it through Internet, without leaving home at all.
56. What is the passage mainly about?
A. Internet B. Radio stations C. Magazines D. Libraries
57. What is the quickest and cheapest way of getting in touch with your friend abroad?
A. By telegraph B. By air-mail
C. By e-mail D. By telephone
58. Which of the following will you choose if you want to hold a meeting over the Internet?
A. Chat room B. Search engines
C. Online conference D. Electronic lists
59. In the writer’s opinion, it can be inferred that we might work _____ in the future.
A. in the office B. at home
C. at the library D. in the store

You have been badly injured in a car accident. It is necessary to give you a blood transfusion because you lost a great deal of blood in the accident. However, special care must be taken in selecting new blood for you. If the blood is too different from your own, the transfusion could kill you.
There are four basic types of blood; A, B, AB, and O. A simple test can make sure of a person's blood type. Everybody is born with one of these four types of blood. Blood type, like hair color and height, is received from parents.
The four groups must be transfused carefully. A and B cannot be mixed. A and B cannot receive AB, but AB may receive A or B. O can give to any other group; therefore, it is often called the universal donor (万能捐赠者). For the opposite reason, AB is sometimes called the universal recipient（接受者）. However, because so many reactions (反应) can happen in transfusions（输血）, patients usually receive only salt of plasma (liquid part of blood) until their blood can be matched as exactly as possible in the blood bank of a hospital. In this way, it is possible to prevent the transfusion from any bad reactions.
86. People with type A blood can receive type .
A. AB B. B C. O D. all of the three
87. If you need a blood transfusion, the best and safest blood for you is.
A. a mixture of type A and type B
B. a mixture of salt, plasma and type O
C. type AB
D. exactly the same type as your own
88. The phrase "universal recipient" means a person who.
A. can receive blood of type A or B
B. can receive blood of any other type
C. can give blood to anybody
D. cannot give blood to others
89. A good title for this article is.
A. Getting Enough Blood
B. Differences Between Blood Types
C. Man's Four Types of Blood
D. How to Give Blood Transfusion
90. Which of the following statement is NOT true?
A. Carelessness in a blood transfusion may lead to death.
B. AB is the mixture of A and B
C. AB is called the universal recipient because it can receive any other group.
D. In transfusions, patients usually receive only salt of plasma at first.

I’ve loved my mother’s desk since I was just tall enough to see above the top of it as Mother sat doing letters. Standing by her chair, looking at the ink bottle, pens, and white paper, I decided that the act of writing must be the most wonderful thing in the world.
Years later, during her final illness, Mother kept different things for my sister and brother. “But the desk”, she said, “is for Elizabeth”.
I never saw her angry, never saw her cry. I knew she loved me, she showed it in action. But as a young girl, I wanted heart-to-heart talks between mother and daughter.
They never happened. And a gulf opened between us. I was “too emotional”. But she lived “on the surface”
As years passed and I had my own family. I loved my mother and thanked her for our happy family. I wrote to her in careful words and asked her to let me know in any way she chose that she did forgive me.
I posted the letter and waited for her answer. None came.
My hope turned to disappointment，then little interest, finally, peace---it seemed that nothing happened. I couldn’t be sure that the letter had even got to Mother. I only knew that I had written it, and I could stop trying to make her into someone she was not.
Now the present of her desk told me, as she’d never been able to, that she was pleased that writing was my chosen work, I cleaned the desk carefully and found some papers inside---a photo of my father and a one-page letter, folded(被折叠) and refolded many times.
Give me an answer, my letter asks, in any way you choose, Mother, you always chose the act that speaks louder than words.
81. The writer began to love her mother’s desk________.
A. after Mother diedB. before she became a writer
C. when she was a child D. when Mother gave it to her
82. The passage shows that__________.
A. Mother wrote her daughter in careful words
B. Mother cared much about her daughter in words
C. Mother was too serious about everything her daughter had done
D. Mother was cold on the surface but kind in her heart to her daughter
83. The word “gulf” in the passage means________.
A. part of the sea going far in land
B. free talks between mother and daughter
C. different ideas between the mother and the daughter
D. deep understanding between the old and the young
84. What did Mother do with her daughter’s letter asking for forgiveness?
A. She had never received the letter.
B. She read the letter again and again till she died.
C. For years, she often talked about the letter.
D. She didn’t forgive her daughter at all in her life.
85. What’s the best title of the passage?
A. My letter to Mother B. Mother and Children
C. My Mother’s Desk D. Talks between Mother and Me

In bringing up children, every parent watches eagerly the child's acquisition (学会) of each new skill in the first spoken words, the first independent steps, or the beginning of reading and writing. It is often tempting to hurry the child beyond his natural learning rate, but this can set up dangerous feelings of failure and states of worry in the child. This might happen at any stage. A baby might be forced to use a toilet too early, a young child might be encouraged to learn to read before he knows the meaning of the words he reads. On the other hand, though, if a child is left alone too much, or without any learning opportunities, he loses his natural enthusiasm for life and his desire to find out new things for himself.
Parents vary greatly in their degree of strictness towards their children. Some may be especially strict in money matters. Others are severe (严格的) over time of coming home at night or punctuality for meals. In general, the controls represent the needs of the parents and the values of the community as much as the child's own happiness.
As regards the development of moral standards in the growing child, consistency(一致性) is very important in parental teaching. To forbid a thing one day and excuse it the next is no foundation for morality (道德). Also, parents should realize that "example is better than precept". If they are not sincere and do not practice what they preach (说教), their children may grow confused when they grow old enough to think for themselves, and realize they have been to some extent fooled.
A sudden awareness of a marked difference between their parents' principles(原则) and their morals can be a dangerous disappointment.
76. Eagerly watching the child's acquisition of new skills ___________.
A. should be avoided
B. is universal among parents
C. sets up dangerous states of worry in the child
D. will make the child lose interest in learning new things
77. In the process of children's learning new skills, parents ________.
A. should encourage them to read before they know the meaning of the words they read
B. should expect a lot of the children
C. should achieve a balance between pushing them too hard and leaving them on their own.
D. should create as many learning opportunities as possible.
78. The second paragraph mainly tells us that ___________.
A. parents should be strict with their children
B. parental controls reflect only the values of the community
C. parental restrictions vary, and are not always for the benefit of the children alone
D. it's parents' and society's duty to control the children
79. The word "precept" in Paragraph 3 probably means "___________".
A. opinion B. punishment C. behavior D. instruction
80. In terms of moral matters, parents should _________.
A. follow the rules themselves
B. be aware of the huge difference between adults and children
C. forbid their children to do anything
D. always ensure the security of their children