(Q).
We often find that weekends and holidays feel so short while classes and work feel so long. In reality, though, we know that this is not true. But we still wonder where that strange feeling comes from. In fact, this is one of the ways that we're tricked by time, according to the website All That Is Interesting. The website lists several wrong impressions we often have about time. Let's have a look. First of all, emotions affect our time-keeping abilities: Negative emotions, especially anxiety and boredom, make time seem longer because they make us concentrate more on the passage of time. However, when we are enjoying ourselves, we pay more attention to what we are doing and are likely to lose track of(...) time. Here is another example. In 2007, a group of scientists carried out a test. In the test, people fell 50 meters into a safety net and were then asked about their experience. Although the experience took shorter than 3 seconds, the people thought it was much longer than it actually was. This is because of the way our bodies reply to danger, according to the scientists. Our bodies produce a chemical called adrenaline  when we are faced with danger. It allows us to concentrate better so that we can stay alive. As a result, we are able to remember far more details over a short period of time, which makes it seem like time is going more slowly. Another occasion when we make mistakes about time is when we take afternoon naps . Have you ever had trouble telling what time it is after a long nap? That's because the best amount of time for a nap is 20 minutes. After 20 minutes, you enter a new stage of sleep called slow-wave sleep. If you wake up mid-way in this stage, it will take a while before you can correctly perceive  time again. Yes, time can be mysterious and there is no way to control it So, perhaps the best thing to do is to make good use of every minute. What is the article mainly about? A) How emotions affect time keeping abilities. B) Tests which scientists carried out about time. C) The best amount of time for an afternoon nap. D) Mistakes that people make in their understandings of time.
(A).
D


(Q).
Most penguins died after a huge iceberg grounded near their habitat in Antarctica,forcing them to make a long way to find food, scientists say in a newly published study. The B09B iceberg, measuring about 100 square kilometers, grounded in Commonwealth Bay in East Antarctica in December 2010, the researchers from Australia and New Zealand wrote in the "Antarctic Science" journal. The Adelie penguin population at the bay's Cape Denison was measured to be about 160,000 in February 2011 but by December 2013 it had decreased to about 10,000, they said. The iceberg's grounding meant the penguins had to walk more than 60 kilometers to find food, preventing their breeding attempts, said the researchers from the University of New South Wales' ( UNSW) Climate Change Research Centre and New Zealand's West Penguin Trust. "The Cape Denison population could disappear completely within 20 years unless B09B relocates or the fast ice within the bay breaks out,"they wrote in the research published in. Fast ice is sea ice which forms and stays along the coast. During their survey in December 2013 , the researchers said "hundreds of abandoned eggs were noted, and the freeze-dried dead bodies of previous season's little penguins lay everywhere on the ground." "It's strangely silent,"UNSW's Chris Turney , who led the 2013 exploration , told the"Sydney Morning Herald Friday"."The ones that we saw at Cape Denison were terribly low-spirited , almost unaware of your existence . The ones that are surviving are clearly struggling. They can hardly survive themselves , let alone give birth to the next generation. We saw lots of dead birds on the ground." In contrast, penguins living on the eastern edge of the bay just 8 kilometers from the fast ice edge were full of _ , the scientists said. The researchers said the study had important influence on the wider East Antarctic if the current situation of increasing sea ice continued. Sea ice around Antarctica is increasing, in contrast to the Arctic where global warming is causing ice to melt... What's the main idea of the passage ? A) Global warming caused penguins' death. B) Iceberg harmed penguins' life. C) Penguins need more habitats. D) Antarctic extreme weather caused penguins' death.
(A).
B


(Q).
I'm sure many of you have seen Star Wars, Jurassic Park, Multiplicity, or many of the other movies that describe cloning. Most of what you see in these movies is false. What you don't know is that cloning could be dangerous, to the clone and to our society as a whole. I think human cloning is wrong mainly for four reasons. What about identity? Humans are promised the right to their own personalities. What would happen if we ignore those rights by giving them someone else's genetic identity? True, Cloning may prevent people from possessing their identities. Also, these is a large power struggle here. Cloning means a degree of power and controls over another person's physical identity and that ignores their rights and their only personalities. The person doing the cloning would have more power than any parent would have. Cloning would also deal with killing embryos  . You might not have known, but Dolly, the sheep that was cloned in 1996, was one of over 200 sheep embryos and hers was the only embryo that survived. The rest died or were thrown away. Imagine if the failure rate was that high when we started to clone humans. cloning means running the risk of wasting too much effort Cloning someone, at this present time, would be extremely dangerous to the birth mother and the clone. In studies done on cows, 4 out of 12 birth mothers died. There is a very high failure rate, which is shown in the cloning of Dolly. Even if you had a few good embryos, failures have been noticeable in animal tests. So, should we work ahead in the world of cloning? I say no. the risks are greater than the benefits. It's dangerous to the clone and to the birth mother. We would be killing human lives in the process. It would also be a violation  of the clone's right to its own genetic identity and personality. The author thinks human cloning is wrong mainly for    _    reasons. A) 4 B) 3 C) 2 D) 5
(A).

A