D

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(物种). That’s a move similar to what a 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. 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.”

69. 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

70. 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

71. 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

 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。

Tina and Thomas Sjogren were the fourth people to reach the earth's poles. Years ago, the couple were  16    across the North Atlantic on their way to Europe. Tina looked out of her window and was   17   by the vast amount of space in Greenland. “The sky outside the window burst into different   18  and auroras (极光) flew all around us. I   19   what it would be like to step down there and start walking   20   , all alone in such a place. ”She thought, “If this is what Iceland and Greenland are like, how   21   then must the Arctic be?” She turned to her husband,   22   him awake and said, "Honey, let' s go to the Poles !"

Tina’s   23   would not be their first adventure. They had already climbed Mount Qomolangma. The pair soon made a   24    to visit both the North and South Poles on skis, Traveling   25 

    On February 2, 2002, they reached the South Pole. Their journey 26   2,000 kilometres. After just 35 days of recovery and preparation, they   27   again. "You are so    28      after the long expedition to the South Pole, so you don' t know if you could do   29    right away."

On May 29 , after traveling for the whole morning, as the couple watched with weak    30     , the numbers on their GPS showed that their goal had   31  been achieved. They had made it.

    Without the    32    of dogs or supplies dropped from planes, it was only their strength and willpower that   33    them to ski and swim their way. They got valuable experience but that did not come without a    34   If you go on an adventure, there's always the risk of something going wrong.    35    , you will learn from it.

16. A. flying           B. exploring           C. swimming           D. sailing

17. A. frightened       B. bored               C. amazed             D. amused

18. A. shapes           B. colors               C. sounds               D. waves

19. A. remembered     B. wondered           C. enjoyed             D. doubted

20. A. carefully         B. quickly              C. aimlessly             D. freely

21. A. cold            B, bright              C. wonderful           D. terrible

22. A. shook           B. knocked            C. kept                D. beat

23. A. idea             B. advice               C. order                D. offer

24. A. suggestion       B. plan                C. proposal             D. change

25. A. non-stop         B. unsupported         C. unreturned          D. unprepared

26. A. covered          B. included            C. lasted                D. crossed

27. A. broke down      B. settled down         C. set out               D. came back

28. A. excited          B. disappointed        C. confused            D. tired

29. A. more             B. another              C. one                  D. others

30. A. torchlight       B. sunlight            C. breath              D. eyesight

31. A. surprisingly      B. luckily             C. accidentally         D. eventually

32. A. reward           B. burden              C. help                 D. company

33. A. attracted        B. allowed             C. taught               D. forced

34. A. price            B. success             C. mistake             D. change

35. A.Therefore         B. Instead          C. Otherwise         D.However

2010 Spring Vacation Program

Lexington Prep School’s (LPS)Spring Vacation Program offers students an opportunity to use their break time productively.

Students who plan ahead can take advantage of reduced rates:

    *Spring Vacation:Friday 3/5/2010-Monday 3/29/2010

    *Registration(报名)Deadline:2/15/2010

    *Our Special Pricing offer ends after 2/1/2010

    *If registered after 2/1/2010,$200/day for Basic Program

*ONLINE REGISTRATION (Click Here) *

Students will stay in our picturesque facility and choose from one of three following programs:

A.Basic Program: $120/day if registered before Feb.1,2010

Students in our Basic Program are provided with room,board and classroom space for

independent work.We also provide shuttle service to local sites including the local subway station.malls,and nearby movie theaters.Students may also choose to participate in outings to attractions such as the Boston Museum of Science,Salem Witch Museum,and Faneuil Hall Marketplace for all additional charge.

B.Balanced Program,$220 per day

students in our limited program participate in SSAT or SAT/English preparation classes during the morning session focusing on vocabulary and grammar, critical reading,and essay writing.

After lunch.students are free to work independently or to relax.

C.Intensive Program,$260 per day

Students in our intensive program are given a full day of SSAT or SAT/English preparation including  grammar,  vocabulary,  critical  reading,  writing  and  mathematics. The  intensive program is designed to achieve the greatest score increase in the shortest period of time.

For participants in all programs:

*Each student will have one roommate in a room equipped with a bathroom.

*Private classes are also available in:All AP Subjects,all SAT Ⅱ Subjects,school project work, school research paper assistance,art,music.

*Facilities include(a gym,art room,library,TOEFL certified computer lab,concert hall with

grand piano, movie room,and recreation room with karaoke and ping-pong table.

57.If students register for Basic Program before 2/1/2010,they Can save    per day.

A.$80    8.$120    C.$220    D.$260

58.If choosing Balanced Program,students can do the following EXCEPT    .

    A.share a double room(with a bathroom)with another student

    B.take a full day of SSAT or SAT/English preparation classes

    C.attend private classes such as school project work,art and music

    D.have fun seeing a movie,singing karaoke or playing ping—pong

59.The purpose of Intensive Program is to help students

  A.gain the highest score in the shortest time

  B.1earn to get along with roommates

C.enjoy reduced price for the Spring Vacation Program

D.work independently on a school research paper

60.This passage may probably appear

  A.in research report

 B.in a textbook

 C.at a website

D.in a guidebook

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