[单项选择]I could still have found my way into science in a nonexpansionist civilization of the future, where upward social mobility and its ______ opportunities would no longer be taken for granted to the degree that they have been in recent centuries.
A. attending
B. attendant
C. pendant
D. pending

[单项选择]I could still have found my way into science in a nonexpansionist civilization of the future, where upward social mobility and its ______ opportunities would no longer be taken for granted to the degree that they have been in recent centuries.
A. attending
B. attendant
C. pendant
D. pending

[填空题]Scientists have found a way of protecting astronauts from solar radiation.

[单项选择]
Scientists have found a way to use hair to figure out where a person is from and where that person has been. The finding could help solve crimes, among other useful applications.
Water is central to the new technique. Our bodies break water down into its parts: hydrogen and oxygen. Atoms of these two elements end up in our tissues and hair.
But not all water is the same. Hydrogen and oxygen atoms can vary in how much they weigh. Different forms of a single element are called isotopes. And depending on where you live, tap water contains unique proportions of the heavier and lighter isotopes of hydrogen and oxygen.
Might hair record these watery quirks That’s what James R. Ehleringer, an environmental scientist at the University of Utah in Salt Lake City, wondered to find out he and his colleagues collected hair from barbers and hair stylists in 65 cities in 18 states across the United States. The researchers
A. Tap water reflects the concentrations of hydrogen and oxygen isotopes in different regions.
B. Tap water is a kind of soft drink in the United States.
C. Tap water contains unique proportions of isotopes of hydrogen and oxygen.
D. Tap water is used to cook foo

[多项选择] Women’s Liberation
1. Women still have a long way to go to be equal with men.
2. Certain attitudes women held toward life prevent women from seeking for themselves liberation and equality with men.
3. I believe women’s liberation lies in the hand of women themselves.

[单项选择] Through my mom’’s loving words, I found a way back. When you wake up in jail—especially having been raised by God-fearing, hard-working, honest people like my mama and daddy—you know what alone means. You’’ve betrayed who you are, the values you believe in, and the people who gave you everything. At that moment, being a country singer wasn’’t what mattered. All I could think about was what I was going to tell the Pentecostal (圣灵降临节派的) preacher’’s daughter who brought me up. I woke up on March 15, 2001, on a tiny cot in a jail cell in Nashville, wondering how it all came to this. At 37, I was looking at a sentence of 15 years for felony theft, and by all rights, I should have served it. I was addicted to crystal rnethamphetamine (冰毒), and I’’d been stealing my friends’’ musical instruments and pawning (典当) them to get money to feed my habit. I’’d been caught red-handed (当场) with $ 25,000 worth of pilfered (偷窃的) equipment stacked up in my living room. And I was high as a Ge
A. The author was sent to jail because he betrayed the value he believed in.
B. The author resorted to stealing so as to satisfy his drug addict.
C. The author might have experienced a tough childhood.
D. The author was abandoned by his birth parents shortly after he was born.

[填空题]
A. The American Dream refers to the idea that a person has the opportunity to succeed and prosper, despite their economic or social backgrounds, through hard work. But if the rising cost of tuition prohibits students from working through college, Can the American Dream still be obtained
B. Thirty years ago, the cost of tuition was low enough at most public universities that students could pay their way through school by working throughout college. But since the average cost of attendance for all 4-year public universities within a given state rises each year, this is now an almost impossible feat (功绩). 80 percent of students work at least part-time during college. Recently the question of whether or not working your way through school has become a "thing of the past" was raised by Randy Olson, a graduate student at Michigan State University, who decided to investigate the issue at hi