阅读下列短文：从每题所给的 A、B、C、D 四个选项中，选出最佳选项，将正确的选项涂在答题卡上。

A

       You probably know who Marie Curie was, but you may not have heard of Rachel Carson.Of the outstanding ladies listed below, who do you think was the most important woman of the past 100 years?

 Jane Addams(1860-1935)

Anyone who has ever been helped by a social worker has Jane Addams to thank. Addans helped the poor and worked for peace. She encouraged a sense of community(社区)by creating shelters and promoting education and services for people in need In 1931,Addams became the first American woman to win the Nobel Peace Prize.

  Rachel Carson(1907-1964)

If it weren't for Rachel Carson, the environmental movement might not exist today. Her popular 1962 book Silent Spring raised awareness of the dangers of pollution and the harmful effects of chemicals on humans and on the world's lakes and oceans.

Sandra Day O'Connor(1930-present)

When Sandra Day O'Connor finished third in her class at Stanford Law School, in 1952,she could not find work at a law firm because she was a woman. She became an Arizona state senator(参议员) and ,in 1981, the first woman to join the U.S. Supreme Court. O'Connor gave the deciding vote in many important cases during her 24 years on the top court.

  Rosa Parks(1913-2005)

On December 1,1955,in Montgomery, Alabama,Rasa Parks would not give up her seat on a bus to a passenger. Her simple act landed Parks in prison. But it also set off the Montgmery bus boycott. It lasted for more than a year, and kicked off the civil-rights movement. “The only tired I was, was tired of giving in,” said Parks.

    Check out some fun weekend activities from our friends at Arizona Parenting.

    Walk in the Wild: Walk or run for wildlife at the Phoenix Zoo's Walk in the Wild 2016. Put on your favorite animal dress and take part in the one mile or 5K,enjoying the sights and sounds of the Zoo. Walk in the Wild includes a morning full of unique activities you won't find at any other valley walk, including all-day zoo admission and a lakeside after-party. Register online. 6-10 am. Phoenix Zoo, 455 North Galvin Parkway, Phoenix. 602-286-3800.

    Free Museum Day: It is hosted by Sesame Street and HBO at the Children's Museum of Phoenix. Kids can participate in activities, enjoy a performance by the Sesame Street Muppets and get to join the Everyday Heroes Club. An act of kindness is all it takes to become a member. Performances and activities will take place at 10:30—11:30 am and 1:30—2:30 pm.9 am—4 pm. Children's Museum of Phoenix, 215 N. 7th street, Phoenix. 602-253-0501.

    Sunday A'Fair: Sunday A'Fair features free outdoor concerts in Scottsdale Civic Center Park by top Arizona musicians, along with an arts-and-crafts market, fun activities for children and families, guided tours of the sculptures in the park and free admission to Scottsdale Museum of Contemporary Art (SMoCA). Guests are invited to bring blankets, lawn chairs or picnic baskets, and enjoy a relaxing afternoon of great entertainment. Delicious foods, snacks, beer, wine and soft drinks are also available for purchase.12-4 pm. Scottsdale Center for the Performing Arts, 7380 E. 2^nd St., Scottsdale. 480-994-ARTS (2787).

    A biologist from the National Park Service discovered a rare and unusual mammoth(猛犸) skull(颅骨) buried in a 13,000-year-old rock layer on the Santa Rosa Island, the second largest landmass in the Channel Islands, California. The fossil of the extinct giant animal is leaving many paleontologists(古生物学家) scratching their heads. Despite the fact that it's possibly the best preserved mammoth skull ever found and of high scientific importance, the species of the individual it belonged to can't seem to be identified yet—it's too big to be a pygmy(特别矮小的) mammoth and too small to have come from a Columbian mammoth. Some say it's a new species while others believe the truth lies somewhere in between.

    The first mammoths showed up in North America around two million years ago, but it was only during the last two ice ages that the Columbian species, which could grow to be up to 14 feet tall, made its way to the Channel Islands 100 miles west of Los Angeles. Once the ice melted, many populations became trapped on the island and evolved into pygmy mammoths, an endemic species(地方种) to the Channel Islands which grew only to six feet tall.

    Judging from its size, the newly found mammoth skull doesn't seem to fit any of the two species, Columbian or pygmy. To make things even more confusing, one of its two tusks(象牙) is nearly five feet long and coiled in a manner that resembles those of fully grown mammoths but the left tusk is shorter and sloped, more like a juvenile(青少年).

    This has caused some scientists to say the Santa Rose skull may belong to a transitional species. Whatever's the case, a following examination of the mammoth's teeth should put the matter to rest. The analysis will also tell us how old the mammoth was when it died, so we can tell for sure whether it was an adult or juvenile.

    More interesting than the mammoth's lineage, however, might be its story. The giant mammal lived 13,000 years ago or roughly the same timeline of the “Arlington Man”, a 13,000-year-old human skeleton also found on Santa Rosa. Some 3,000 years later humans were already spread throughout the continent and the Channel Islands' mammoth went extinct. The present finding might help reveal a link between the two.

    The remains also seem to confirm a long-held assumption that there were two mammoth migrations to the Channel Islands. “The discovery of this mammoth skull increases the probability that there were at least two migrations of Columbian mammoths to the island: during the most recent ice age 10,000 to 30,000 years ago, as well as the previous ice age that occurred about 150,000 years ago,” said USGS geologist Dan Muhs.

    What would it take to persuade you to exercise? A desire to lose weight or improve your figure? To keep you away from diseases? To live to a healthy old age? You'd think any of those reasons would be enough to get Americans exercising. Yet a vast majority of Americans have thus far failed to swallow the "exercise pill".

    Now a research by psychologists strongly suggests it's time to think of current well-being（幸福）and happiness as motivators for exercise instead of future health, weight loss and body image.

    Dr. Segar, one of the researchers, believes that immediate rewards are more motivating than distant ones. "People who say they exercise for the quality of life exercise more over the course of a year than those who say they value exercise for its health benefits." He said. '

    Other studies have shown that what keeps people moving depends on age, sex and life circumstances. For those of college age, physical attractiveness typically heads the list of reasons to begin exercising, although what keeps them going seems to be the stress relief that a regular exercise program provides. The elderly, on the other hand, may get started because of health concerns. But often what keeps them exercising are the friendships and sense of community that may otherwise be missing from their lives. Improving daily well-being is the most influential factor for the women. Men indicate they are motivated by more distant health benefits, but this may be because men feel less comfortable discussing their mental health needs.

    "Exercise should be encouraged but the emphasis on weight loss, disease prevention and healthy aging should be reduced." Dr. Segar concluded. "Exercise can make people feel more energetic, less stressed and, yes, happier."

    Kitchen Products Thai Will Make Your Life a Lot Easier

    Hanging Trash Bag.

    Speaking of clever bag that will change your world, how many times have you cut off loads of vegetables and tried to clean up the messy waste, only to make half of it accidentally drop on the floor? This hanging trash bag attachment (附件) makes clean-up super easy, so you'll never end up with smelly chopped (切碎的) onions all over your floor again.

    Available on Amazon, $ 6.99

    Dream Farm Supoon

    How many times have you struggled for just that last little bit of something out of a jar or dish? This all-purpose cooking spoon helps scraps (刮擦) the edges of any pan, bowl, or strangely-shaped container with zero effort, so you'll always get that last bit, every time.

    Available on Amazon, $20.40

    Flex Pot Clip

    For those of us who'd rather not balance our serving spoon or wooden spoon on the edge of the pot unsteadily, or rest it on the counter where it'll definitely make a mess, allow me to introduce you to the Flex Pot Clip. Attach it to the edge of your pot so you can keep your counters clean and your hands free. It's heat-resistant and dishwasher safe!

    Available on Amazon, $7.88

    Reusable Silicone Lids

    These are useful to cover your food before putting it in the fridge if you often have leftovers. These silicone lids are flexible, reusable, dry airtight, allowing you to leave your food right in its original dish or bowl and keep it fresh for days. They're clear, eco-friendly, and super easy to store, since they hardly take up any space. Available on Amazon, $15.97

Public libraries are an excellent resource for research, literacy(读写能力)education, and reading-centered events. Most towns have one or share library services with other towns through a mobile library, and the use of a public library is free to people who are willing to apply for a library card.

There are several primary sources of library funding(资金)， starting with national funds which are distributed to states or provinces. These regions send the funds on to public libraries. Local governments also play an important role in providing funding for libraries, and most librarians apply for grants(拨款). Finally, private donations help to maintain libraries—most libraries have an association of Friends of the Library which organizes fund-raising sales and pays annual dues to help maintain the library.

Grants and private donations can also be used to provide a large amount of funding for public libraries, and some large libraries maintain a separate staff to increase the amount of funding that they can obtain through these sources. Grants include technology grants which allow libraries to install and upgrade computer systems, grants which focus on a particular topic such as science, fiction, children's books, or local history, and education grants which support locally-based community efforts such as after-school reading programs. Many private donors are pleased to support their local public libraries by donating funds or including some library in their wills, and libraries reward their donors with treats like after-hours visits or privileged access to special collections.

By combining multiple resources, creative librarians can keep their libraries useful, informative, and fun for browsers. When it comes to supporting public libraries, every little bit counts: if you cannot afford to donate to a local library, think about volunteering time to help shelve, lead after-school programs, or organize fund raisers. Being active with your public library is a very important way to contribute to your local community.