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 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 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，”Karemer 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 firstever 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.”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 |
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 |
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 |
From the passage we know that________.
| A．Karemer 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 |
New findings from Queen’s University biologists show that in the plant world, bigger isn’t necessarily better.
“Until now most of the thinking has suggested that to be a good competitor in the forest, you have to be a big plant,” says Queen’s Biology professor Lonnie Aarssen. “But our research shows it’s virtually the other way around.”
Previous studies showed that larger plant species monopolize(垄断) sunlight, water and other resources, limiting the number of smaller plant species that can exist around them. But the research has proved that this is not generally the case in natural vegetation.
In the Queen’s project, PhD student Laura Keating targeted the largest “host plants” of 16 woody plant species growing in the Okanogan Valley, British Columbia. The research team calculated the number and variety of plants that neighbored each large host plant. They then randomly selected plots without host plants and calculated the plant species there as well. The research showed that the massive trees have no effect on the number of species with which they coexist.
Smaller plants have many advantages over their overbearing neighbors, Professor Aarssen notes. Larger species generate physical space niches under their shelters where smaller species grow well. Smaller plants are much more effective than large trees at using available resources. They also produce seeds at a much younger age and higher rate than their bigger counterparts, and settle down much more quickly—thuscompeting with the newly-born plants of larger species. What’s the main idea of the text?
| A．Smaller plants may have many advantages over their neighbors. |
| B．In the plant world, the bigger is better than the smaller one. |
| C．To be a good competitor in the forest, you have to be a small plant. |
| D．Queen’s University’s students made a new research. |
The underlined word “this” in Para. 3 refers to the view that _____.
| A．large and small plants can grow together in harmony |
| B．larger plant species limit their smaller neighbors’ growth |
| C．small plant species have their own advantages |
| D．large and small plant species can never coexist |
What can we learn according to the text?
| A．Larger plant species limit the number of smaller ones around them. |
| B．Smaller plants can limit the number of plant species around them. |
| C．Smaller plants produce seeds at a higher rate than their bigger counterparts. |
| D．Larger trees are more effective than small plants at using available resources. |
Which is the CORRECT order in the Queen’s project?
a. Randomly selected plots without host plants and-calculated the plant species.
b. Calculated the number and variety of plants that neighbored each large host plant.
c. Selected the largest individuals or "host plants" of 16 woody plant species.
| A．a, b, c | B．c, b, a |
| C．b, c, a | D．a, c, b |
Each new school year brings fresh reminders of what educators call the summer learning gap. Some call it the summer learning setback. Simply speaking, it means the longer kids are out of school, the more they forget. The only thing they might gain is weight.
Most American schools follow a traditional nine-month calendar with winter and spring breaks and about ten weeks of summer vacation. Some schools follow a year-round calendar. They hold classes for about eight weeks at a time, with a few weeks off in between. The National Association for Year-Round Education says there were fewer than 3,000 such schools at last count. They were spread among forty-six of the fifty states.
But many experts point out that the number of class days in a year-round school is generally the same as in a traditional school. Lead researcher Paul von Hippel said, “Year-round schools don’t really solve the problem of the summer learning setback. They simply spread it out across the year.”
Across the country, research shows that students from poor families fall farther behind over the summer than other students. Experts say this can be prevented. They note that many schools and local governments offer programs that can help.
But calling them “summer school” could be a problem. The director of the summer learning center at Johns Hopkins, Ron Fairchild, said research with groups of different parents in Chicago and Baltimore found that almost all strongly disliked the term “summer school”. In American culture, the idea of summer vacation is connected to beliefs about freedom and the joys of childhood. The parents welcomed other terms like “summer camp”, “extra time” and “hands-on learning”. According to the first paragraph, the summer learning gap _____.
| A．helps children to gain weight |
| B．leads children to work harder |
| C．improves children’s memories |
| D．affects children’s regular studies |
Compared to traditional schools, students in the year-round ones _____.
| A．perform better and have more learning gains |
| B．have much less time for relaxation every year |
| C．have generally the same number of class days |
| D．hold more classes with more free weeks off |
Which of the following statements is TRUE?
| A．Students from poor families often fall behind after the vocation. |
| B．Year-round schools can solve the problem of the learning gap. |
| C．There are schools in each state following a year-round calendar. |
| D．Nothing can help the students who fall behind after the vocation. |
Why did almost all parents dislike the term “summer school”?
| A．Because they cherish the children’s rights of freedom very much. |
| B．Because they are worried about the quality of the “summer school”. |
| C．Because they want their children to be forced to make up the gap. |
| D．Because they couldn’t afford to the further study during the vacation. |
Bus crash kills four Taiwanese, injures 15
(People’s Daily Online)
14:38, August 16, 2011
A tourist bus crashed on the highway in Jilin province leaving four Taiwanese tourists dead at the scene and 15 injured.
According to the Jilin Publicity Department, the bus overturned after colliding with a car on the Hunchun-Ulanhot expressway in Jilin province around 440 kilometers away from Changchun. Four Taiwanese tourists were killed instantly, including one man and three women, and of the 15 injured, 14 were Taiwanese tourists.
The tour leader provided a list of the dead: The three women killed were Lv Huiyu, 42; Zhao Zhuo, 62; Liao Xiuyun, 42, and the man was Wang Mingwei, 24. Moreover, the injured tourists were mostly elderly. The oldest injured tourist is around 80 years old and the youngest victim was about 50 years old. Five of them were hurt seriously, but their injuries are not life threatening.
According to the local public security bureau, the bus had a capacity(载客量) of 39 people and carried a real load of 21 people. It belongs to the Heilongjiang Juntai Transport Co., Ltd.
The departments of public security, fire control, the Taiwan Affairs Office have actively operated scene rescue, accident investigation and follow-up care for victims after the tragedy(悲剧). The Jilin provincial party committee secretary Sun Zhengcai issued instructions immediately requiring proper handling of the aftermath and genuine care in helping the victims. The vice-governor Chen Weigen visited the injured in the First Hospital of Jilin University.
The responsible person of the State Council Taiwan Affairs Office is heading for Changchun. Which of the following is TRUE according to the passage?
| A．All the people injured on the bus were Taiwanese tourists. |
| B．The accident happened on the expressway near Changchun. |
| C．Most of the injured were elderly. |
| D．Most of the injured were seriously hurt and several of them were dying. |
Which of the following has the similar meaning to the underlined word “colliding” in the passage?
| A．碰撞；相撞 | B．拐弯 |
| C．翻转 | D．坠毁 |
What is the writer’s attitude in writing this passage?
| A．Sad. | B．Objective. |
| C．Disappointed | D．Doubtful. |
2012 TEEN TRIP TO THE LELAND HIGH SNOW PLAY
For Teens Currently in 6th to 12th Grades
LELAND HIGH SNOW PLAY —Class # 8389
Saturday, November 12, 2012
8:00 a.m. to 7:00 p.m.
Meet at THE UNDERGROUND
(Veteran’s Building—2203 Central Avenue)
Cost per person: $50 ($60 after October 22, 2012)— Includes Lunch, Admission and Transportation With a 4,000sq. Ft. day-use lodge, the Leland High Snow Play has a huge supply of tubes to choose from, along with awesome tows(拖车) that will tow you up to the top of the hill! Our varied terrains(地形) have something for everyone, while the lodge provides a snack bar, video games, pool tables, five indoor rest rooms, a warm fire, and a sun deck with plenty of tables and chairs overlooking the play area outside.
ADDITIONAL LIABILITY FORM REQUIRED FOR THIS TRIP.
Be sure to bring warm clothing and prepare for the cold, but dress in layers in case it warms up. Wear dry boots, socks, and sunscreen. If possible, bring a mobile phone in case of emergency, as well as money for snacks and a light dinner; or bring your own food and drinks. Meet at The Underground (Veteran’s Building—2203 Central Avenue)—don’t be late!
Do not bring electronic or fragile items during the trip. The ARPD is not responsible for your personal belongings or money. REFUNDS ARE ISSUED ONLY IF THE ARPD CANCELS THIS TRIP DUE TO WEATHER CONDITIONS.
Click here to download “2011 Leland High Snow Play” flyers and the registration form(PDF, 261KB)
Click here to download “Leland High Snow Play Liability Form”(PDF, 14KB)
1. You may register in person, or mail the completed form to Leland High Snow Play, Inc. Send the liability form and payment to the ARPD Office, 2226 Santa Clara Avenue, Alameda, 94501.
2. Faxed registration and liability forms accepted with MasterCard/VISA, (510) 747-7566.
3. Online registrations available at www.arpdeplay.com. Make sure you bring your completed liability form on the trip. The purpose of the text is to _____.
| A．explain the details of a school activity |
| B．introduce a famous tour agency |
| C．urge teenagers to climb a snowy mountain |
| D．advertise a trip to the Leland High Snow Play |
People who want to take part in the activity need to _____.
| A．pay for dinner themselves |
| B．climb the hill themselves |
| C．wear hats to protect themselves from the sun |
| D．pay for tows individually |
From the text we can infer that _____.
| A．the weather at the hill is changeable |
| B．the activity is very dangerous |
| C．12-year-old children are not allowed on the trip |
| D．the trip will involve outdoor activities only. |
Among other items, what do the participants need to take?
| A．Their filled-in liability forms. |
| B．ID cards and a small amount of cash. |
| C．Their agreements with the tour agency. |
| D．Their registration forms downloaded from the Internet. |
Perhaps you have heard a lot about the Internet, but what is it, do you know? The Internet is a network. It uses the telephone to join millions of computers together around the world.
Maybe that doesn’t sound very interesting. But when you’re joined to the Internet, there are lots and lots of things you can do. You can send e-mails to your friends, and they can get them in a few seconds. You can also do with all kinds of information on the World Wide Web (WWW).
There are many different kinds of computers now. They can all be joined to the Internet. Most of them are small machines sitting on people’s desks at home, but there are still many others in schools, offices or large companies(公司). These computers are owned by people and companies, but no one really owns the Internet itself.
There are lots of places for you to go into the Internet. For example, your school may have the Internet. You can use it during lessons or free time. Libraries often have computers joined to the Internet. You are welcome to use it at any time.
Thanks to the Internet, the world is becoming smaller and smaller. It is possible for you to work at home with a computer in front, getting and sending the information you need. You can buy or sell whatever you want by the Internet. But do you know 98% of the information on the Internet is in English? So what will English be like tomorrow? What is the passage mainly about?
| A．Internet. | B．Information. |
| C．Computers. | D．E-mails. |
Which is the quickest and cheapest way to send messages to your friends?
| A．By post. | B．By e-mail. |
| C．By telephone. | D．By satellite. |
Which may be the most possible place for people to work in tomorrow?
| A．In the office. | B．At school. |
| C．At home. | D．In the company. |
Who is the owner of the Internet?
| A．The headmaster. | B．The officer. |
| C．The user. | D．No one. |