Our new machines are much cheaper to run．
A．effective B．efficient
C．energetic D．Enthusiastic
______ today, he would get there by Friday．
A．Were he to leave B．If he had left
C．Did he to leave D．Had he left
请根据下面的英文短诗，展开适当的想象，写一篇标题为Hold Fast To Dreams 的短文。
Dreams
By Langston Hughes
Hold fast to dreams,
For if dreams die,
Life is a broken-winged bird,
That can never fly.
Hold fast to dreams,
For when dreams go,
Life is a barren field,
Frozen only with snow.
内容要求： 1．对该诗歌的理解； 2．对观点进行阐述或举例说明； 3．恰当的结尾。
注意：1.不得照抄短诗原文。
2．必须结合短诗的内容，发挥想象，适当展开。
3．词数：120左右。 生词：barren adj 贫瘠的
Hold Fast To Dreams
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阅读下面短文，根据以下提示：1）汉语提示，2）首字母提示，3）语境提示，在每个空格内填入一个适当的英语单词，所填单词要求意义准确、拼写正确，并将该词完整地写在答题卡中相应的横线上。
It is well known that we Senior Three students will experience various exams.Sometimes it is hard to avoid failure , which greatly1.u_______ us.. Recently, our class had a2.________ discussion about failure in exams. Here are the results.
We all agree that there are both advantages and 3.d_______ of failing in the exam. Generally speaking, it is widely believed that there are several 4.______(积极) aspects . To begin with, it reminds students to devote themselves more to their studies. In addition, it helps students realize 5.______ they are weak in, thus leading them to improve. However, some problems may turn 6._____ from failure in exams. It ruins students’ self-confidence so badly that some even lose the interest in 7.__________(挑战)themselves. Sometimes the dissatisfaction teachers and parents show with these students also makes the matter even 8.________(糟糕).
On such 9.o________, what I usually do is to turn to my teachers for help. They will always analyze my problems and give me some 10.a______ on how to deal with them. Their comfort and encouragement mean much to me.
When policy experts debate climate change solutions, they often talk about "a price on carbon." They are arguing about whether companies should pay when they put carbon pollution in the air. Proponents say that it's simple economics -- if it's free to pollute, you'll get a lot of pollution. Opponents claim it will raise the cost of energy that's produced from high carbon sources, like coal. But here's the secret that most people seem to be missing: There already is a price on carbon, and it's paid by the taxpayers.
Carbon pollution, like every other form of pollution, has an impact on the environment. Throwing waste into a river will cause the fish to die and the people who drink the water to get sick. And when you produce carbon pollution, you get climate change -- sea level rise, stronger storms, severe droughts, damage to agriculture, and more.
All of those impacts cost money. Insurance rates go up when storms get more destructive. Taxes increase when cities have to rebuild bridges and roads. Military budgets go up when droughts and population changes cause conflicts. Not to mention impacts on agriculture and health care costs.
In other words, the price on carbon is what we all pay when there is no market force to limit the pollution that causes climate change. So the debate is really about who will pay that price -- the companies who are making a profit from the fossil fuels, or the taxpayers who pick up the cost now?
Right now, we have private profit and public cost. It's just like if we allowed every business to throw its garbage in the street because it's too expensive to have it moved away properly. Does it add a little bit to your dinner check to require that restaurants dispose of their trash properly? Sure. But it would be more expensive for you if the city had to clean the streets of their garbage every day. So just like we put a "price on garbage" we need a "price on carbon pollution."
Now, a "price on carbon pollution" can mean a lot of things. You could tax companies based on the amount of carbon pollution they produce, and return the money to taxpayers. You could put a limit on how much they can produce, thereby requiring them to invest in ways to conduct business in a less polluting way.
1.What do the policy experts argue about carbon pollution?
A. Whether the companies should pay for it.
B. Whether taxpayers could get profit from it.
C. Who have the ability to change it.
D. How much should be paid for it.
2.What’s the main idea of Paragraph 2 ?
A. Some other forms of pollution
B. The effects of carbon pollution
C. The signs of carbon pollution
D. The way to reduce carbon pollution
3.The author referred to restaurants in the passage mainly to________.
A.prove every business doesn’t perform its duty.
B. warn readers to protect the environment around.
C. explain the damage of no policy on carbon pollution.
D. show some restaurants throw away their trash randomly.
4.According to the passage, what does the “price on carbon pollution” means?
A. Telling the taxpayers to refuse to pay taxes on carbon pollution
B. Making the government invest to reduce carbon pollution
C. Increasing prices of the products from companies.
D.Taxing companies on carbon pollution they produce.
New research has shown that loneliness may affect ants to a greater extent than many other living creatures.
It has long been known that loneliness can lead to a shorter life. In humans, it has even been found to be a driver of high blood pressure, sleep disorder, and depression that’s independent of factors like age, race, gender, weight and economic status.
However, loneliness has never been identified as a factor that can cut human lifespan by more than a small part of the average. Ants, on the other hand, appear to be far more sensitive to this stress, with loneliness leading to a surprising 91 percent reduction in lifespan.
That’s at least according to a study that details how “lonely” ants only live up to six days on average. Ants living in a community, on the other hand, were found to live up to about 66 days.
In a series of experiments where ants were picked from their colonies (群体) and separated, they were found to continuously walk without rest,consuming far more energy than they could ever.
The reason for the behavior is that an isolated ant is simple trying to get back to its colony at all costs, and doesn’t know what to do without its nest mates. After all, many entomologists (昆虫学家) would argue that an ant colony is far more a single living entity (实体) than its members.
If you were to take a single part from a clock, it would simply move aimlessly as well, running without a purpose. However, while there is a difference between aimlessness and loneliness, the researchers found that the latter affects lonely ants more directly.
The study indicated that ants can’t even eat alone, as they normally collect some of the food they gather in the field in a specialized organ called a crop.This crop is normally shared with other ants back at a nest,but as for a single ant, it simply just sits there, undigested and useless.
1.How does loneliness influence a person?
A. It can make him very tired of himself.
B. It can leave him in conflict with others.
C. It can lead to him being very independent.
D. It can cause him to suffer from poor health
2.What can be learned from the experiments?
A. Most ants can live about 6 days on average.
B. Lonely ants can become very restless.
C. Human beings are similar to ants in some way.
D. Lonely ants seem to be violent and impatient.
3.Why does an isolated ant walk non-stop?
A. It attempts to return to its colony.
B. It wants to attract other ants to form a colony.
C. It hopes to make signals to its mates.
D. It has to find more food to survive.
4.The author mentioned a clock in the passage_________.
A. to show ants have a biological clock in the head.
B. to prove ants are a well-regulated community.
C. to stress ants are really highly social animals.
D.to compare aimlessness with loneliness.
