Construction workers in Southern California have made a wild discovery. They were digging at a building site in San Timoteo Canyon (峡谷) when they unearthed hundreds of ancient animal fossils. Researchers say the bones hold important clues about the history of the region.
Nearly 1, 500 fossils were recovered from the dusty canyon. The remains are about 1.4 million years old. They include the bones of a new species of deer, several small rodents (啮齿目动物) and more. A giant cat fossil was also found. Scientists believe the animal was an ancestor of the saber- toothed tiger. Signs of plant life were uncovered as well.
“This is a huge find,” says Rick Greenwood, a scientist studying the site. “I don’t think most people had any idea that those types of animals were wandering around here more than a million years ago.”
San Timoteo Canyon is located about 85 miles from Los Angeles. The area of the canyon where the fossils were found was once part of a green river valley. Today, the region is dry and plant life is rare.
Most of the fossils are well preserved. Experts say a muddy lake bed may have trapped thirty animals that wandered over for a drink. The mud helped to protect the animal fossils.
The remains are a million years older than those discovered at the famous La Brea Tar Pits in Los Angeles. Scientists studying the bones will be able to learn more about how the animals adapted to changes in the environment.
“We have a confused view of what this time period was like, ” says another scientist. “A discovery like this could really be an important contribution.”
About 35 different animal species are represented in the fossil collection. Scientists began removing bones from the site last fall. The project was completed this summer. Starting next year, the fossils will be on display at the Western Science Center in the nearby city of Hemet, California.
What does the passage mainly focus on?
| A．The secret of ancient animals’ deaths. |
| B．The preparation for a future fossil exhibition. |
| C．A great discovery of fossils. |
| D．The history of San Timoteo Canyon. |
From what Rick says, we know ________. (原创)
| A．fossils were discovered in the canyon for the first time. |
| B．the canyon in ancient times was quite different. |
| C．more research work will be carried on in the canyon. |
| D．the river water helped to protect the animal fossils. |
Compared to the discovery at the La Brea Tar Pits, the canyon-involved fossils _______.
| A．are far older | B．include more species |
| C．are better preserved | D．make experts more confused |
What do we know about the fossils from the passage?
| A．All of them are of new species. |
| B．Some of them have been destroyed |
| C．They were looked for under experts’ guidance. |
| D．They will be on show in the near future. |
Money, jewels and important documents are not the only valuable placed in banks these days. Some mothers store their breast milk in banks.
There’re ten breast banks set up across the United States, where mothers can donate their extra milk for other women’s babies. Experts say breast milk is the best food for babies. The World Health Organization says it is the only food babies should get during the first six months of life, in most cases. Breast milk is especially important for babies born too early. Sometimes these premature babies must stay in the hospital for many weeks.
James Cameron is a doctor who treats newborns at Lutheran Children’s Hospital in Fort Wayne, Indiana. He says breast milk is almost like medicine. Doctor James Cameron said, “The fact is that there are so many different proteins and specialized sugars in the breast milk that the mom’s able to make that help provide immunity. It’s very important for the health of the newborn.”
There are several reasons some mothers may not be able to breastfeed. Some are not able to produce enough milk. Others might be taking medicines or have medical problems that prevent the process.
Lucy Baur lives near Fort Wayne. She fed her milk to both her children and always had more milk than they needed. She wanted to donate to the Indiana Mothers Milk Bank in Indianapolis. But freezing and shipping milk can be costly. Then, a donor station opened near her home.
Milk donations in the United States work like this: Donors must be willing to provide almost three liters of breast milk. They freeze the milk and take it to the station. There, employees warm the milk and mix it with other mothers’ milk. Then, the milk is heated to kill bacteria. After that, the technicians test samples of all the milk to make sure it is safe and healthful. The milk is re-frozen and sent to the main milk bank. The milk bank transports the milk to hospitals to feed premature or sick babies. Donors are tested for diseases before any milk is accepted. They are not permitted to smoke tobacco, use illegal drugs or drink too much alcohol.The purpose of setting up breast milk banks is to_____.
| A．store extra fresh milk for school children |
| B．provide milk to children who go hungry |
| C．help mothers donate milk to other babies |
| D．offer free breast milk to premature babies |
The breast milk is important for newborns because_____.
| A．it protects them from any possible disease |
| B．it contains rich nutrients that they need |
| C．it is the only food that babies can eat |
| D．it benefits them as the best medicine |
The underlined word “they” in the last paragraph refers to____.
| A．milk bank employees | B．milk bank doctors |
| C．milk bank nurses | D．breast milk donors |
Which of the following shows the process of milk donations in the USA?
a. The mixed breast milk is heated to kill bacteria.
b. Breast milk is donated by mothers, frozen by them and sent to the stations.
c. The breast milk samples are tested for safety reason.
d. Different donors’ breast milk is warmed and mixed together by the station.
e. The milk is frozen again and sent to the main milk bank.
| A．bdace | B．bcdea | C．badec | D．cbaed |
Microblogging is a broadcast medium in the form of blogging. A microblog differs from a traditional blog in that its content is typically much smaller, in both actual size and aggregate file size. Microblogs “allow users to exchange small elements of content such as short sentences, individual images, or video links”.
As with traditional blogging, microbloggers post about topics ranging from the simple, such as "what I'm doing right now," to the thematic(主题的), such as "sports cars.” Commercial microblogs also exist, to promote (促进) websites, services and/or products, and to promote collaboration within an organization.
Some microblogging services offer features such as privacy settings, which allow users to control who can read their microblogs, or other ways of publishing rights besides entering the web-based interface.(界面) These may include text messaging, instant messaging, E-mail, or digital audio.
The first microblogs were known as tumblelogs. The term was invented in a blog post on April 12, 2005. However, by 2006 and 2007, the term microblog came into greater usage for such services provided by Tumblr and Twitter. Other leading social networking websites Facebook, MySpace, LinkedIn, and XING also have their own microblogging features, better known as status updates.
Several studies, especially by Harvard Business School have tried to analyze the usage behavior of Microblogging services. Many of these studies show that for services such as Twitter, there is a small group of active users contributing to most of the activity.
Twitter, Facebook and other microblogging services are also becoming a platform for marketing and public relations, with a sharp growth in the number of social media marketers. The Sysomos study shows that this specific group of marketers on Twitter is much more active than general user population, with 15% following more than 2,000 people. Why is a microblog different from a traditional blog?
| A．Because a microblog doesn’t include pictures, but a traditional blog does. |
| B．Because a microblog doesn’t include videos, but a traditional blog does. |
| C．Because a microblog has smaller contents than a traditional blog in actual and total file size. |
| D．Because a microblog can only be written on the cell-phones. |
What is the meaning of the underlined word “collaboration” in the second paragraph?
| A．Competition. | B．Discussion. | C．Tradition. | D．Cooperation |
Microblogging can protect the following privacy EXCEPT_______.
| A．deciding the readers of the microblogs |
| B．allowing readers to publish their views |
| C．readers’ deleting what a microblog says |
| D．deciding whether readers can enter it |
We can infer from the passage that______.
| A．microbloggers always post about the thematic topics instead of the simple ones |
| B．microblogging has developed so quickly and brought the owners more and more benefits. |
| C．microblogging protects both the owners’ and the readers’ privacy |
| D．the studies by Harward Business School have analyzed the usage of microblogging services |
This advertisement is designed especially for those who __________．
| A．like eating in restaurants | B．have little time |
| C．prefer home-cooked meals | D．want to save money |
What information CAN’T we get from the advertisement about Quickeats?
| A．Different kinds． | B．High quality． | C．Exact prices． | D．Good taste． |
Which of the following can be cooled in a refrigerator before eating according to the ads?
| A．Pasta Salad． | B．Dried Fruit． | C．Noodles． | D．Nuts． |
What can we learn from the advertisement?
| A．Get one Quickeats container and you’ll have four Quickeats to eat． |
| B．Take one coupon and you can eat freely in a participating store． |
| C．Buy one coupon and you’ll get a free Quickeats． |
| D．Buy one Quickeats and you’ll get a container． |
The prestigious (久负盛名) Peking University and Tsinghua University held graduation ceremonies on the same day this year. The presidents of the two universities delivered excellent speeches at the ceremonies as they used words, phrases or ways of expression that are very popular on the Internet currently. At the same time, graduation speeches by other university presidents were also under the spotlight for the same reason. Their speeches were warmly welcomed by students as they contained many fashionable words today, such as "floating clouds" ( meaning "too small and of little importance to mention") and "gelivable" (meaning " very helpful") . In the speeches , these university presidents recalled campus life together with students and finally moved all the audiences. They were very different from the usual run of lectures.
Many university presidents have changed their regular manner of addressing graduation ceremonies from an advising and preaching (说教) mode to a more fashionable and funny approach. They try to use those words popular among young people in their speeches.
In the past, university presidents' speeches were criticized for being too standard and lacking sentiment. Now , they quote fashionable words in their addresses, reflecting they are starting to adopt more everyday attitudes to students. The use of these new expressions has triggered a heated discussion. It focuses on the question of whether university presidents should speak in an informal way at graduation ceremonies.
Supporters agree with the new approach. They consider it good to build close ties with students by using the youth's own words. Opponents argue the new ways have no practical value or significance for education but are merely to please those leaving university.What would be the best title for this passage?
| A．Should University Heads Use Terms of Youth |
| B．Must University Presidents Learn to Please Students |
| C．Must University Presidents Meet Students' Needs |
| D．Should University Heads Use Newly-created Words |
What can we infer from the passage?
| A．University presidents consider it good to build close ties with students. |
| B．More and more students are eager to make speeches in public. |
| C．The new ways of making speeches are popular with the young. |
| D．University presidents have special opinions about the world. |
What dose the underlined word "triggered " in Paragraph 3 probably mean ?
| A．Break off | B．Set off | C．Sum up | D．Focus on |
Which of the following is true according to the passage?
| A．Many people are likely to be influenced by the Internet. |
| B．The writer thinks it necessary for us to follow the traditional customs. |
| C．More and more words are changing with the development of technology. |
| D．People argue about whether to use fashionable words on formal occasions. |
Save the Animals
Animals are natural resources(资源) that people have wasted all through our history.
Animals have been killed for their fur and feathers(羽毛), for food, for sport, and simply because they were in the way. Thousands of kinds of animals have disappeared from the earth forever. Hundreds more are on the danger list today. About 170 kinds in the United States alone are considered in danger.
Why should people care? Because we need animals. And because once they are gone, there will never be any more.
Animals are more than just beautiful or interesting. They are more than just a source of food. Every animal has its place in the balance (平衡) of nature. Destroying one kind of animal can create many problems.
For example, when farmers killed large numbers of hawks(鹰), the farmers’ stores of corn and grain were destroyed by rats and mice. Why? Because hawks eat rats and mice. With no hawks to keep down their numbers, the rats and mice multiplied(繁殖) quickly.
Luckily, some people are working to help save the animals. Some groups raise money to let people know about the problem. And they try to get the governments to pass laws protecting animals in danger.
Quite a few countries have passed laws. These laws forbid(禁止) the killing of any animal or plant on the danger list. Slowly, the number of some animals in danger is growing.Animals are important to us mainly because __________.
| A．they give us a source of food |
| B．they are beautiful and lovely |
| C．they keep the balance of nature |
| D．they give us a lot of pleasure |
What has happened to the animals on the earth?
| A．About 170 kinds of animals have disappeared forever. |
| B．Thousands of kinds of animals are gone forever. |
| C．A few kinds of animals have died out. |
| D．All kinds of animals are in danger. |
Why do people kill animals?
| A．They kill animals for something they need. |
| B．They kill animals to raise some money. |
| C．Animals destroy their natural resources. |
| D．Animals create many problems. |
What can we conclude from the fact that quite a few countries have passed laws protecting animals in danger?
| A．Animals in danger will be kept away from people. |
| B．Animals in danger will not be killed any more. |
| C．The number of some animals in danger will increase. |
| D．Every person will know the importance of protecting wild animals. |