The year is 2094. It has been announced that a comet is heading towards the Earth. Most of it will miss our planet, but two pieces will probably hit the southern half of the Earth.
On 17 July, a piece four kilometers wide enters the Earth’s atmosphere with a massive explosion. About half of the piece is destroyed, but the remaining part hits the South Atlantic at 200 times the speed of sound. The sea boils and a huge hole is made in the sea bed. Huge waves are created and spread outwards from the hole. The wall of water, a kilometer high, rushes towards southern Africa at 800 kilometers an hour. Cities on the African coast are totally destroyed and millions of people drowned.
Before the waves reach South America, the second piece of the comet lands in Argentina. Earthquakes and volcanoes are set off in the Andes Mountains. The shock waves move north into California and all around the Pacific Ocean. The cities of Los Angeles, San Francisco and Tokyo are completely destroyed by earthquakes. Millions of people in the southern half of the Earth are already dead, but the north won’t escape for long. Because of the explosions, the sun is hidden by clouds of dust, temperatures around the world fall to almost zero. Crops are ruined. The sun won’t be seen again for many years. Wars break out as countries fight for food. A year later, no more than 10 million people remain alive.
Could it really happen? In fact, it has already happened more than once in the history of the Earth. The dinosaurs were on the Earth for over 160 million years. Then 65 million years ago they suddenly disappeared. Many scientists believe that the Earth was hit by a piece of object in space. The dinosaurs couldn’t live through the cold climate that followed and they died out. Will we meet the same end?
小題1:What is mainly described in the passage?
A．A historic discovery. B．An event of imagination.
C．A research on space.D．A scientific adventure.
小題2:When the first piece hits the South Atlantic, it causes      .
A．a(chǎn)n earthquakeB．damages to cities
C．a(chǎn)n Earth explosionD．huge waves
小題3:Why can’t the northern half of the earth escape for long?
A．Because the land is covered with water.
B．Because the light and heat from the sun can not reach the Earth.
C．Because people there can not live at the temperature of zero.
D．Because wars break out among countries.
小題4:By giving the example of dinosaurs, the author tries to prove      .
A．a(chǎn)nimals could not live in the cold climate
B．what happened 65 million years ago was an invented story
C．the human beings will die out in 2094
D．the Earth could be hit by other objects in space

小題1:B
小題2:D
小題3:B
小題4:D

試題分析：文章大意：2094年彗星撞擊地球，有兩片殘核會落在地球的南極洲地區(qū)，那將會對地球產(chǎn)生滅頂之災(zāi)。這會是真的嗎？
小題1:B 主旨大意題。根據(jù)第一句話時間是在2094年，最后一段Could it really happen?及Will we meet the same end? 說明本文所描述的事故是想象出來的，即答案選B。
小題2:D推斷題。 根據(jù)文章第二段The sea boils and a huge hole is made in the sea bed. Huge waves are created and spread outwards from the hole. The wall of water, a kilometer high, rushes towards southern Africa at 800 kilometers an hour.可知，第一片殘片撞到南極洲的時候主要引起的是巨大的海浪，所以D正確。
小題3:B 細(xì)節(jié)題。根據(jù)倒數(shù)第二段but the north won’t escape for long. Because of the explosions, the sun is hidden by clouds of dust, temperatures around the world fall to almost zero. 和The sun won’t be seen again for many years. 可以得出答案選B。
小題4:D 推斷題。根據(jù)最后一段Could it really happen?又舉了恐龍滅絕的例子，作者想以此為例證明地球被撞擊的這一想象真的有可能會發(fā)生。所以D正確。
練習(xí)冊系列答案
相關(guān)習(xí)題

科目：高中英語 來源：不詳 題型：閱讀理解

  In my last essay, I wrote briefly about a bathtub in the classroom. What really was the use of that bathtub? “Guys, it is Reading Workshop time now. When I call your table, get your things, please!” said Mrs. Toalson. She was holding a cup that had many sticks in it; on every stick was written each student’s name and table number.
What does she mean? Probably books, I thought. Mrs. Toalson picked a stick out of the cup and said, “Okay, Aniqa’s table; Table Two, you may get your things. ”Then my four classmates ran for the cushions（墊子）in the bathtub. Mrs. Toalson kept picking sticks and calling out different table numbers. On hearing their numbers, students would run to get cushions. Because there were not enough cushions for everyone, the last to be called had to go without. Those students sighed, “Oh! They are the lucky ones.”
Finally, Mrs. Toalson picked the last stick ; what is she going to do now?
“Kate, you may use the bathtub. ” Mrs. Toalson said. Gosh! Use the bathtub? Is Kate going to take a bath, I wondered. Kate is the girl who had pretty brown hair. She ran happily with her book to the bathtub and lay down in it. As she read, she hugged a teddy bear. I think it must be comfortable reading in a bathtub.
Except for lucky Kate, everybody had to read elsewhere. Some were sitting on the seats, some were lying down under the table, and everybody’s reading pose（姿勢）was different.
Just then, my friend found me sitting at my table quietly, not doing anything. She said, “Mary, let me find you a book. ” I nodded. Then she led me to a comer of the classroom where the book-shelf was and picked a picture book for me.
Regina thought that it would be more fun to read outside on the grass. What a great idea! The next day our whole class went to the park across the street from our school. As we read, animals such as squirrels ran around us. It was amazing !
小題1: In Mrs. Toalson’s Reading Workshop, every student can learn _________.
A．brieflyB．comfortablyC．quicklyD．eagerly
小題2: Which of the following is TRUE according to this passage?
A．Mrs. Toalson told the student to sit in the bathtub as a punishment.
B．The student who used the bathtub in that class was thought to be unlucky.
C．Not every student can get a cushion in Mrs. Toalson’s Reading Workshop.
D．In Mrs. Toalson’s Reading Workshop, only the best student can lie down reading.
小題3: Who got the chance to use the bathtub in that class?
A．A student whose table was last called.
B．The student who sat at the table quietly.
C．The student who got the last cushion.
D．A student whose table was first called.
小題4: The purpose of the passage is to ________.
A．tell us how to use a bathtub in the classroom
B．introduce us a new way of teaching style
C．teach us how to organize reading activifies in class
D．show us the importance of reading poses

查看答案和解析>>

科目：高中英語 來源：不詳 題型：閱讀理解

Babies who are slow to gain weight in the first months of their lives generally catch up to their peers by age 13,a large UK study shows, Researchers said the results would make parents whose babies fail to put on weight quickly less worried.
The researchers looked at data from ,11,499 children who took part in a large study, It showed that 507 who were slow to gain weight in the first eight weeks of life recovered fairly quickly and had almost caught up by age 2. Another group of 480 who were slow to gain between eight weeks and nine months continued to put on weight slowly until they were seven years ,but then had a sudden increase and caught up by age 13, The different pattems of recovery between the two groups were likely due to different reasons for slow weight gain ,the researchers said, All the children were still lighter and shorter than their peers by the time they were teenagers ,but within the normal range.
The findings highlight the importance of monitoring a baby’s weight and height gain during the first few weeks and months ,but not creating anxiety with parents of slow-growing babies, said the study leader Prof Alan Emond from the University of Bristol.
“In the past, a lot of parents have been caused unnecessary anxiety by heaith professionals and this is a positive and reassuring message.”He said in many cases of slow growth where children do not follow the standard’curve’(曲線)it is just because they are following their genetic potential.
Dr Simon Newell, vice-president of the Royal College of Paediatrics and Child Health, said he broadly agreed with the concluslons of the researchers but stressed that poor weight gain was something that needed to be monitored closely, “I would encourage parents to use growth charts but if measurements show your baby is smaller than averager it may be completely normal, ”he said.
小題1:What can we know from the findings of the research?
A．All the cases of slow weight gain in the first months of the babies’ lives are caused by the same reason
B．Slow-growing babies will have the same height and weight with their peers by age13
C．Many cases of children whose growth don’t meet the growing standard curve cannot be treated as abnormal
D．The findings won’t cause parents’ anxiety so monitoring a baby’s growth from his/her birth is unnecessary
小題2:Which of the following statements is true according to the passage?
A．It’s important to monitor a baby’s weight and height gain for new parents
B．New parents should feel anxious about their baby’s weight and height gain
C．Researches still couldn’t find the reasons for slow weight gain
D．All the children’s weight and height became normal by age 13
小題3:What does the underlined word in the fourth paragraph mean?
A．Making sure something is certain to be true
B．Making someone calmer and less anxious
C．Confirming something is to happen again
D．Being sure that someone can be attracted
小題4:Which of the statements would Dr Simon Newell agree to?
A．To some degree, growth charts can help parents monitor their babies’ weight gain
B．It’s abnormal for babies are smaller than average
C．He agreed with the researchers completely
D．Babies’ weight gain can only be monitored and measured by using growth charts.
小題5:The writer wrote this passage in order to        
A．tell us how to help babies grow faster
B．explain why babies are gain weight slowly
C．report on the findings of a research
D．reduce the anxiety of some parents

查看答案和解析>>

科目：高中英語 來源：不詳 題型：閱讀理解

The UK has a well-respected higher education system and some of the top universities and research institutions in the world. But to those who are new to it all, sometimes it can be confusing.
October is usually the busiest month in the college calendar. Universities have something called Freshers’ Week for their newcomers. It’s a great opportunity to make new friends, join lots of clubs and settle into university life.
However, having just left the comfort of home and all your friends behind, the prospect (前景) of meeting lots of strangers in big halls can be nerve-wracking (令人焦慮不安的). Where do you start? Who should you make friends with? Which clubs should you join?
Luckily, there will be thousands of others in the same boat as you worrying about starting their university social life on the right foot. So just take it all in slowly. Don’t rush into anything that you’ll regret for the next three years.
Here are some top advice from past students on how to survive Freshers’ Week：
● Learn rules. Make sure you know British social etiquette (禮節(jié)). Have a few wine glasses and snacks handy for your housemates and friends.
● Be kind. Sometimes cups of tea or even slices of toast can give you a head start in making friends.
● Be sociable. The more active you are, the more likely you’ll be to meet new people than if you’re someone who never leaves his room.
● Bring a doorstop. Keep your door open when you’re in and that sends positive messages to your neighbors that you’re friendly.
So with a bit of clever planning and effort, Freshers’ Week can give you a great start to your university life and soon you’ll be passing on your experience to next year’s freshers.
小題1:We can learn from the passage that ______.
A．Freshers’ Week usually comes in September in UK
B．a(chǎn)ll the students are required to join certain clubs in UK
C．many freshers are worried about how to fit university life
D．most of the students in the UK spend three years in universities
小題2:Why does the author suggest having wine glasses and snacks handy?
A．To pass the busy university life.
B．To help make friends with other freshers.
C．To show yourself a drinker as others.
D．To enjoy the time in a happy way.
小題3:The main purpose of the passage is to _______.
A．tell the newcomers how to make a new start in universities
B．introduce something about higher education system of the UK
C．inform the freshers of British social etiquette
D．a(chǎn)dvise the freshmen how to behave well in the beginning

查看答案和解析>>

科目：高中英語 來源：不詳 題型：閱讀理解

How would you like to sleep with one half your brain asleep and the other half awake? Dolphins sleep this way. Recently, scientists at Indiana State University have discovered that ducks sleep this way too. They found that ducks sleep half awake so they can rest and watch for danger at the same time.
After putting their ducks in a row and videotaping them, some researchers found ducks on the end of each row spent more time asleep with one eye open, apparently looking for predators.
“The more the ducks felt threatened, the more they slept with one eye open,” said lead author Niels C. Rattenborg, a graduate student at Indiana State University, Terre Haute. “The unique aspect is not that they do it, but that they control it. When they sleep at the edge of a group, they tend to realize greater danger, so they spend more time sleeping with one half of their brain.” Ducks with one eye open were still awake enough to detect predators, said the authors of the study, which appears today in the journal Nature.
The researchers studied four groups of four ducks held in plastic boxes, which were arranged in a row. Ducks on the end were found to sleep with one eye open 31.8 per cent of the time, compared to 12.4 percent of the time for ducks in the central position.
Also, ducks in the central position did not open one eye more than the others, while ducks on each end kept the eye facing away from the group open 86.2 per cent of the time. Brain wave readings of the ducks showed that the half of the brain receiving signals from the closed eye indicated that half of the brain was sleeping. Signals from the half of the brain receiving signals from the open eye showed a state between fully awake and asleep.
小題1:The under lined word “predator” is most likely to mean      .
A．a(chǎn)n animal that is likely to be friends with ducks
B．a(chǎn) human being who looks after and feeds ducks
C．a(chǎn) scientist who does research work on animals
D．a(chǎn)n animal that hunts, kills and eats other animals
小題2:Ducks at the end of each row sleep with one eye open because      .
A．they are looking for food
B．they are watching out for danger
C．they want to enjoy the scenery
D．they are unique in their sleeping habit
小題3:Which of the following is true according to the passage?
A．Ducks with one eye open at the edge can still enjoy a certain degree of sleep.
B．Ducks with less sense of duty usually choose to stay in the center of a row.
C．Ducks on the northern end of a row would keep their eye facing the south open.
D．A video tape recorder was the only electronic device used in the experiment.

查看答案和解析>>

科目：高中英語 來源：不詳 題型：完形填空

Kids have their own ideas about money---some are sensible and others are not so wise.
Twelve-year-old Amanda thinks it’s        to save and not blow your money right away  “ so you can         other things”.
When it comes to credit cards, eight-year-old Jeremie says when the monthly        comes in “ you sign it and then you give it back” ---leaving out the part about actually        it.
These kids are        far away from the working world, but the ideas they’re forming about        could affect how much they save, how they use credit cards and how much debt they finally take on in later life.
High school business teacher Jeff Balch said his students had        knowledge about money other than spending. “ They don’t know most things because        talks to them about them---as in their parents,” said Balch, “The discussions tend to be in terms of kids        too much money, but no one tells them why, where their money goes.
Mitch Murphy said students’ message to the task force was to “ make it       ”. “ It may be difficult to have a 14-or 15-year-old student get too        about retirement planning, ” Murphy said, “ But if you want to talk about a cellphone contract or a debt card,they will be engaged in.” Murphy said learning financial literacy (能力)　    ,  well        getting into the work force, should stay with Canadians for life and        the country as a result.
Sandra Martin said children can start learning about money when they learn to       . “ Sit down with the flyers and look at how much things cost,” Martin said. Babysitting and birthday money could be        and there would be a(n)        as to how much could be debited(借) every month, she said.
“ The reality is that we’re not spending with cash anymore. If you’re always in         of your child’s money, then they’re never going to learn what it means to save for something that’s      .”
Balch said he tries to make his students realize the differences between needs, wants and priorities(優(yōu)先權(quán)). If they haven’t learned self-control and if they haven’t learned how to        money, they can easily spiral(螺旋上升) out of control.
小題1:
A．goodB．difficultC．easyD．hard
小題2:
A．sellB．exchangeC．buyD．involve
小題3:
A．materialB．billC．catalogueD．figure
小題4:
A．payingB．replacingC．recyclingD．a(chǎn)dopting
小題5:
A．a(chǎn)lreadyB．stillC．evenD．a(chǎn)lmost
小題6:
A．beliefB．partC．disciplineD．money
小題7:
A．muchB．moreC．littleD．many
小題8:
A．everybodyB．somebodyC．a(chǎn)nybodyD．nobody
小題9:
A．spendingB．costingC．takingD．sparing
小題10:
A．a(chǎn)mazingB．realC．a(chǎn)ctiveD．legal
小題11:
A．disappointedB．skepticalC．enthusiasticD．fortunate
小題12:
A．correctlyB．earlyC．lateD．patiently
小題13:
A．beforeB．a(chǎn)fterC．whenD．while
小題14:
A．benefitB．botherC．contactD．educate
小題15:
A．cookB．tradeC．countD．paint
小題16:
A．stoodB．bannedC．displayedD．deposited
小題17:
A．a(chǎn)ttitudeB．conclusionC．limitD．data
小題18:
A．searchB．controlC．needD．place
小題19:
A．importantB．formalC．scientificD．independent
小題20:
A．borrowB．lendC．increaseD．handle

查看答案和解析>>

科目：高中英語 來源：不詳 題型：閱讀理解

Many of us believe that a person’s mind becomes less active as he grows older. But this is not true, according to Dr Jarvik, professor of psychiatry at the University of California. She has studied the mental functioning of aging persons for several years. For example, one of her studies concerns 136 pairs of twins (雙胞胎), who were first examined when they were already 60 years old. As Dr Jarvik continued the study of the twins into their 70s and 80s, their minds did not generally decline (衰弱) as was expected.
　　However, there was some decline in their psycho-motor speed. This means that it took them longer to finish mental tasks than it used to. But when speed was not a factor, they lost very little intellectual (智力的) ability over the years. In general, Dr Jarvik’s studies have shown that there is no decline in knowledge or reasoning ability. This is true not only with those in their 30s and 40s, but with those in their 60s and 70s as well.
　　It is true that older people themselves often complain that their memory is not as good as it once was. However, much of what we call “l(fā)oss of memory” is not that at all. There usually was incomplete learning in the first place. For example, the older person perhaps had trouble hearing, or poor vision, or was trying to learn the new thing at too fast a speed. In the cases where the older person’s mind really seems to get worse, it is not necessarily a sign of decline due to old age. Often it is simply a sign of a sad emotional state. 
小題1: This passage is mainly about _______.
A．what caused mental decline
B．a(chǎn) new discovery about mental decline
C．the difference between middle-aged and older persons
D．how Dr Jarvik studied mental functioning of the twins
小題2:The word “psychiatry” in paragraph 1 most probably means _______.
A．the study of diseases of the mind
B．the study of physical diseases
C．the study of twins’ growth
D．the study of human behavior
小題3:More often than not, what we call mental decline is actually a sign of _______.
A．a(chǎn) worsening state of healthB．old age
C．nervous tensionD．a(chǎn) state of unhappiness

查看答案和解析>>

科目：高中英語 來源：不詳 題型：閱讀理解

U.S. Bottled Water Sales Are Booming Again Despite Opposition
Despite organized anti-bottled-water campaigns across the country and a noisy debate about bottled water’s environmental impact, Americans are buying more bottled water than ever.
Why do so many people seem to think they should have any input on what other American’s choose to buy or do?
If they want to buy bottled water, let them.
If they want to eat fast food, let them.
If they want to smoke pot, let them.
— Barackalypse
People just get tired of paying for others’ bad behavior. If many people eat excessive fast food, you pay higher insurance premiums. If many people frequently buy bottled water, your trash bills go up and landfills fill up quickly.
It’s about personal responsibility, which really should be a cornerstone of libertarianism.
— Bdbr
So? This is the price you pay to live in a free society. You want to control the life of another just so you can save a few bucks? What would you say when someone do the same to you?
— Norman619
Defend selfish pricks all you like; I’m just glad there are still people who still believe personal responsibility is a good and decent thing. We make your life cheaper and less bothersome.
— Yoyo
What a waste of money! It’s fine when you’re on the road and you need a cold drink, but people who buy cases of bottled water for home are completely crazy.
— Agmlauncher
I wish we all can find a way to improve things and benefit from this. The environment needs a lot of help but businesses will always work on what people would need and demand. Is this part of the balance? Hope we can find better ways.
— Skipweis
小題1:What can we know about bottled water in America?
A．Americans are consuming more bottled water than tap.
B．US bottled water sales have increased for the first time.
C．Activists in several regions have been fighting against it.
D．Some people worry about its bad effect on the environment.
小題2:Who would agree with Barackalypse on this matter?
A．Bdbr. B．Norman619.C．Yoyo.D．Agmlauncher.
小題3:According to the text, Agmlauncher is _____ bottled water.
A．partly supportive ofB．extremely against
C．strongly in favor ofD．not concerned about
小題4:Which of the following statements goes with Skipweis’ opinion?
A．The environment is emphasized too much.
B．It’s impossible for people to find a better way.
C．Business is not totally responsible for the problem.
D．At present we can’t benefit from bottled water at all.

查看答案和解析>>

科目：高中英語 來源：不詳 題型：閱讀理解

Unlike traditional commercials, Public Service Advertisements（PSA）are primarily designed to inform and educate rather than sell a product or service. The goal of a PSA is not to make a big sale, but rather to change public opinion and raise awareness for a problem.
Smokey Bear has been a recognized symbol of the protection of America’s forests from fire. It is created to educate the public about the dangers of wildfires. Smokey Bear was started in 1944 with the slogan, “Smokey Bear Says—Care will prevent 9 out of 10 forest fires”. Smokey Bear’s later slogan,  “Remember! Only You Can Prevent Forest Fires”, was created in 1947 by the Advertising Council in America. In April 2001, the message was changed to “Only You Can Prevent Wildfires”.
The wildfire prevention campaign with Smokey Bear is one of the longest and most successful campaigns in advertising history. The Advertising Council often was in partnership with other organizations and groups to create various advertising for Smokey Bear since 1944.
The Advertising Council teamed with Walt Disney Company to create a series of PSAs. The ads feature（以···為形象）characters form the classic film Sleeping Beauty and aim to reach parents and children. The lovely Bambi also appeared in the advertisements. Mickey Mouse is much more popular throughout the country.
Those PSAs, which appear on television, on the radio, in the newspaper and on the website continue to remind Americans about the importance of wildfire prevention have helped to reduce the number of acres burned annually by wildfires. According to recent survey, Smokey Bear and his famous words of wisdom “Only You Can Prevent Wildfires” are recalled by 3 out of 4 adults.
In addition to the PSA campaign, Smokey Bear has his own U.S. postage stamp and website for more information about wildfire prevention. From the website, you can also learn all about wildfires and how we can protect our forests.
小題1:PSA are primarily designed to     .
A．educate the publicB．change people’s status
C．discuss a problemD．sell products or services
小題2:Which of the following is true of the Smoky Bear?
A．It is one recognized symbols of Walt Disney cartoons.
B．It firstly appeared in America in 1944 with no slogan.
C．It is created to warn Americans of the dangers of wildfires.
D．Its slogan changes every three years.
小題3:How does the author support his topic in Paragraph 4?
A．By summing up.B．By giving examples.
C．By comparison.D．By asking questions.
小題4:According to this text, Smoky Bear      .
A．helps a lot to reduce wildfires in America
B．isn’t popular among the American pupils
C．has set up its own website to advertise products
D．becomes the symbol of the Advertising Council

查看答案和解析>>

同步練習(xí)冊答案