题目
题型：0103 期中题难度：来源：
Internet. However, you can also find many weather signs among wildlife, because of their highly developed
senses. Drops in air pressure (压力) produce an effect on small animals in many ways. Mice and deer are
good weather indicators. People who spend a lot of time outdoors have observed that, before a storm, field
mice come out of their holes and run around. Deer leave high ground and come down from the mountains.
Birds are especially good weather indicators because they also show the effect of a pressure drop in many
ways. For example, some birds become irritable (急躁的) and quarrelsome and will fight over a piece of bread.
Other birds chirp (叽叽喳喳) and sing just before a storm. It seems they know they won"t get another chance
for an hour or two. Birds also seek safe places before a storm. You will sometimes see birds settling in trees
or gathering together on a wire close to a building. Pre-storm low pressure makes the air so thin that birds
have difficulty flying.
It is unusual to see many birds flying overhead in the summertime, rather than during the periods in the
spring or autumn. Watch for other weather signs if you see this. If they fly in the wrong direction, they may
be flying ahead of a storm.
By paying closer attention to some important signs in nature, we can become better prepared for any kind
of weather.
B. services
C. signs
D. stations
B. fly in different directions
C. come down from tall trees
D. share a piece of bread
B. By noticing the change of wind directions.
C. By feeling a drop in air pressure.
D. By noticing the movements of other animals.
B. Drops in Air Pressure
C. Animals"Sharp Senses
D. Nature"s Weather Signs
答案
核心考点
试题【阅读理解。 When people want to know about the weather, they usually go to their r】；主要考察你对题材分类等知识点的理解。[详细]
举一反三
hardly know a time when computers weren"t around, and they eagerly catch the chance to spend hours online,
chatting with friends, So what?
But researchers nationwide are increasingly worried that teens are becoming isolated (孤寂), less skillful at
person-to-person relationships, and perhaps numb (麻木) to the cheatings that are so much a part of the e-mail
world. "And a teen"s sense of self and values may be changed in a world where personal connections can be
limitless,"said Sherry Turkle.
Another researcher, Robert Kraut, said he"s worried about the "opportunity costs" (机会成本) of so much
online time for youths. He found that teens who used computers, even just a few hours a week, showed
increased signs of loneliness and social isolation. "Chatting online may be better than watching television, but
it"s worse than hanging out (闲逛) with real friends," he said.
Today"s teens, however, don"t see anything strange in the fact that the computer takes up a central place in
their social lives, "School is busy and full of pressure. There"s almost no time to just hang out." said Parker Rice,
17. "Talking online is just catch-up time."
Teens say they feel good about what they say online or taking the time to think about a reply. Some teens
admit that asking someone for a date, or breaking up, can be easier in message form, though they don"t want
to do so. But they insist there"s no harm.
B. nothing is wrong with teens"chatting online
C. teens can manage their social connections
D. spending hours online does much good to teens
B. improve their school work
C. develop an interest in social skills
D. reduce their mental pressures
B. teens" computer skills and school work
C. the effects of the computer world on teens
D. different opinions on teens" chatting online
B. draw attention to teens" computer habits
C. suggest ways to deal with problem teens
D. discuss problems teens have at school
阅读下面的短文和问题,根据短文内容,在相应题号后的横线上写下相关的信息(不多于五个单词),
完成对该问题的回答.答语要结构正确,书写工整,字迹清楚.
when writing book reports and stories, I use Microsoft Word instead of a pen and paper. That way, after my
teacher edits my work, I can go back and make revisions without having to rewrite the whole thing. And
Microsoft Word has a spell checks! I use it all the time.
For English class, we"re reading The Outsiders, by S.E.Hinter. As a pre-reading assignment, my teacher
asked us to research teenage groups on the Internet. I tried Google, Encarta, and Yahoo first, and finally
found an article on Time.com.
For a geography assignment on the United States, I used Encarta to learn about the Mississippi River. I
needed to find out how deep the river is, how its widths and depths are different, what states it runs through,
and what kind of fish live in it. I used the information to show how the geography of a country affects its
economy. For example, the river"s trade paths, the number offish caught in it, and the tourists it attracts
directly affect Southerners" jobs and incomes.
I never go to the library to do research. It takes too much time. Since I live in New York City and both
my parents work, getting to the library isn"t always easy. For a big assignment or research project, I"d have
to stay at the library to read, or sign out whatever books or magazines I needed. Being able to find the
information in my own living room makes everything a lot simpler. Online dictionaries and encyclopedias also
save time.
Sometimes. I think the computer spoils my generation because it"s so easy at least physically. But
computers are not like television, which does the thinking for you. You still have to use your mind. I prefer
using a computer. Easy, fun, and fast.
______________________________________________________________________________________
2.Why does the writer never go to the library to do research?(本题1分)
______________________________________________________________________________________
3.What"s the writer"s opinion about using a computer?(本题2分)
_______________________________________________________________________________________
Did you ever wonder why the water level in a glass doesn"t change when the ice in the glass melts (融化)?
To find out why, you can use the scientific method. Used by scientists in various situations, the scientific
method is also a clear and logical way to solve many real-world problems, as the procedure below indicates.
| Steps in the Scientific Method | Examples |
| State the problem or question. | "Why doesn"t the water level in a glass rise when ice melts?" |
| Collect information about the problem, using your own observations and research. | You already know that ice is frozen water. From your research, you learn that water and ice are made of water molecules (分子). |
| Form a hypothesis, or a best guess based on the information. | "The molecules in water appear to be closer together than they are in ice." |
| Test the hypothesis by doing an experiment. | Fill four glasses with ice. Then pour water over the ice and fill each glass to the rim. As the ice melts, you observe that the water does not spill over the top of the glasses. Each time you repeat the experiment, you get the same results. |
| Draw a conclusion based on your results. | Molecules are closer together in water than they are in ice. |
| 阅读理解。 | |
| Dogs wag (摇摆) their tails in different directions depending on whether they are excited and wanting to move forward or threatened and thinking of moving back, a study has found. Researchers in Italy examined the tail wagging behavior of 30 dogs, catching their responses to a range of stimuli (刺激物) with video cameras. To conduct the study they chose 15 male dogs and 15 female ones aged between one and six years. The dogs were all family pets whose owners had allowed them to take part in the experiment at Bari University. The dogs were placed in a large wooden box with an opening at the front to allow for them to view various stimuli. They were tested one at a time. The researchers led by Professor Giorgio Vallortigara of the University of Trieste found that when the dogs were shown their owners-a positive experience-their tails wagged energetically to the right side. When they were shown an unfamiliar human they wagged to the right, but with somewhat less enthusiasm. The appears of a cat again caused a right-hand side wag, although with less intensity again. The appearance of a large unfamiliar dog, similar to a German shepherd, changed the direction of tail wagging to the left. Research ers supposed the dog was thinking of moving back. When the dogs were not shown any stimuli they tended to wag their tails to the left, suggesting they preferred company. While the changes in the tail wagging were not easily noticed without the aid of video, it was thought that the findings could help people judge the mood (心情) of dogs. Computer and video systems, for example, could be used by professional dog trainers to determine the mood of dogs that they were required to approach. | |
| 1. The video cameras were used to catch the dogs"responses because _____. | |
| A. it was easier to catch the dogs"response changes in the tail wagging B. the dogs were put in the wooden boxes and tested one at a time. C. they enabled the dogs"owners to know about their dogs"habit D. the dogs wagged their tails in different directions when they were in different moods | |
| 2. The underlined word "intensity" in the passage means _____. | |
| A. surprise B. worry C. excitement D. interest | |
| 3. When there are no stimuli, a dog will _____. | |
| A. wag to the left B. wag to the right C. not wag at all D. wag to the left and then to the right | |
| 4. The underlined word "they" refers to _____. | |
| A. the dogs B. the trainers C. the systems D. the researchers | |
| 5. The purpose of doing the experiment is _____. | |
| A. to train dogs for their owners B. to help people judge the mood of dogs C. to help dogs find company D. to help people choose their pet dogs | |
| 阅读理解。 | |
| Worrying about how you"ll perform on a math test may actually contribute to a lower test score, US researchers said on Saturday. Math anxiety-feelings of dread and fear and avoiding math-can weaken the brain"s limited amount of working capacity, a resource needed to calculate difficult math problems, said Mark Ashcrafi, a psychologist at the University of Nevada Las Vegas who studies the problem. "It turns out that math anxiety occupies a person"s working memory," said Ashcraft, who spoke at the annual meeting of the American Association for the Advancement of Science in San Francisco. Ashcraft said while easy math tasks such as addition require only a small part of a person"s working memory, harder calculations require much more. Worrying about math takes up a large part of a person"s working memory stores as well, spelling disaster for the anxious student who is taking a high-stakes test ( 高风险测验). Stress about how one does on tests like college entrance exams can make even good math students choke. "All of a sudden they start looking for the short cuts," said University of Chicago researcher Sian Beilock. Although test preparation classes can help students get over this anxiety, they are limited to students whose families can afford them. Finally, she said, "It may not be wise to rely completely on scores to predict who will succeed." While the causes of math anxiety are unknown, Ashcraft said,"People who manage to get over math anxiety have completely normal math ability." | |
| 1. Sian Beilock points out that stress________. | |
| A. can"t be avoided before college entrance exams B. contributes to scores in college entrance exams C. has no effects on good math students D. has side effects on students in college entrance exams | |
| 2. What does the underlined word "spelling" probably mean? | |
| A. causing B. reducing C. taking away D. preparing for | |
| 3. What can we learn from the text? | |
| A. The causes of math anxiety have already been found. B. All of the students attend test preparation classes. C. Math anxiety weakens working memory needed to do math. D. Few measures can be taken to get rid of math anxiety. | |
| 4. What does the passage suggest middle school students do before exams? | |
A. Get relieved. |