题目
题型:不详难度:来源:
One of the longest is the Appalachian National Scenic Trail.The trail is the first completed part of the National Trails System.The trails system was established by Congress and the president in 1968.The Appalachian Trail is more than 3,400 kilometers long.It starts in the northeastern state of Maine and ends in the southeastern state of Georgia.The trail goes through 14 states.They are Maine,New Hampshire,Vermont,Massachusetts,Connecticut,New York,New Jersey,Pennsylvania,Maryland,West Virginia,Virginia,Tennessee,North Carolina,and Georgia.
The path takes walkers through the Appalachian Mountains.They extend from the Canadian province of Quebec to the southern American state of Alabama.
The Appalachian Mountains are among the oldest on Earth.They first began forming about one thousand million years ago.During the millions of years since then,the mountains were changed and reformed by the forces of water and wind.Ice also changed the mountains,making many of them smaller and digging valleys and lakes among them.Many different kinds of trees grow along the trail.And many different kinds of animals live in the forests along the trail.
Lands along the trail are protected by the federal government and by state governments.Some parts are not protected by the government directly.Instead,they are protected by legal agreements with private owners willing to permit people to walk across their property.
Walkers on the Appalachian Trail pass through some of the great valley systems of the mountains.They can look down into these beautiful valleys and see farms and forests stretching across the land for many kilometers.Farmland in the valleys is rich and productive.And some of the great events in American history took place in the valleys.For example,one of the great battles of the American Civil War was fought in the Shenandoah Valley in Virginia.
小题1:The Appalachian Trail________.
A.is more than four thousand three hundred kilometers long |
B.starts in the northern state of Maine |
C.goes through more than fourteen states |
D.ends in the southeastern state of Georgia |
A.are the first completed part of the National Trails System |
B.began forming one million years ago |
C.were changed by natural forces like water,wind and ice |
D.were around by valleys and rivers and famous for its scenery |
A.are protected entirely by either the federal government or state governments |
B.are mainly protected by legal agreements with private owners |
C.can be visited by travelers freely only under the permission of owners |
D.are protected by both the federal government and state governments |
A.The Appalachian Mountains have some great valley systems. |
B.Farms and grasslands stretch across the valleys for many kilometers. |
C.One of the American independence battles was fought in the Shenandoah Valley. |
D.Lakes in the Appalachian Mountains are one of the most beautiful sights. |
答案
小题1:D
小题2:C
小题3:D
小题4:A
解析
小题1: D
解析 细节理解题。根据文章第二段可知,A项数字错误;B项地理位置描述欠精确;C项应该把more than去掉。
小题2: C
解析 细节理解题。根据第四段第三、四句可知,水、风以及冰川都对山貌的变化起到了一定作用,而这些都是自然力。
小题3: D
解析 细节理解题。由第五段第一句可知,这些土地同时受联邦政府和州政府的保护。
小题4: A
解析 主旨大意题。最后一段提到农场和森林绵延数公里,并没有提到grassland,因此B项错误;文中提到的历史事件是发生在美国内战时期,而非独立战争时期,所以C项错误;D项文中没有提到;只有A项内容与本段的主旨句第一句相符。
核心考点
试题【One of the most popular activities enjoyed by Americans is spending time in fore】;主要考察你对题材分类等知识点的理解。[详细]
举一反三
It’s a message that many a mom and dad have tried to impress upon many a youngster (and some notsoyoungsters) who spend perhaps a bit too much time with game controllers in hand.
But the 40yearold Langteau isn’t a parent.He’s a veteran (老手) of the video game industry—one who played producer on three “Medal of Honor” games and cofounded his own game development company.
Langteau has just published a children’s books called Sofa Boy,which tells the story of a kid who spends too much time sitting on the couch with controller clutched in hand and the rather terrible consequences that follow.
It’s a fairy tale plucked straight from Langteau’s own experiences as a lad with a fondness for video games and his own bouts with a bit of game addiction.But first,Langteau would like to make one thing clear,“I’m not saying that you shouldn’t play video games.I think video games are great.I think they do great things for kids.”Instead,Langteau says his book is all about a little something called moderation (克制).
“It’s about being well rounded,” he says.“Just like with anything else,we all need to make sure that there’s a variety in what we do.”
Video gamers can be rather badtempered when it comes to accepting criticism about their favorite entertainment.And understandably so.After all,most people who go around talking about the dangers of playing video games tend to be outsiders—people who don’t play video games and certainly don’t understand that they can be a valuable and healthy form of entertainment.
But Langteau and Sofa Boy seem to be in a unique position to deliver a message of gaming moderation that the young game masses might actually listen to.After all,this is a man who understands what it means to be a kid with a passion for games.His early experience has taught him a lesson.
小题1:Scott Langteau published Sofa Boy to________.
A.share his great skills on games |
B.warn kids against game addiction |
C.tell about his fairy tale as a kid |
D.deliver a message for video games |
A.The book implies the writer’s own story. |
B.The book describes a veteran of games. |
C.The boy in the book wins a medal in games. |
D.The boy in the book is not a video game addict. |
A.Langteau advises the young to play games within limits |
B.Langteau advises the young not to play games |
C.playing video games ruins the future of kids |
D.playing video games doesn’t benefit kids |
A.games do great good to kids |
B.gamers are usually fat and round |
C.games should be viewed from all sides |
D.gamers are to blame for their behaviors |
I was even more surprised to learn that my son is normal.“Teenagers with cellphones each send and receive 2,272 text messages a month on average,” Nielsen Mobile says.
Some experts regret that all that keyboard jabber is making our kids stupid,unable to read nonverbal cues such as facial expressions,gestures,posture and other silent signals of mood and attitude.Unlike phones,text messaging doesn’t even allow transmission of tone of voice or pauses,says Mark Bauerlein,author of a book called The Dumbest Generation:How the Digital Age Stupefies Young Americans and Jeopardizes Our Future.
Beyond that,though,I’m not sure I see as much harm as critics of this trend.I’ve posted before on how I initially tried to control my kids’ texting.But over time,I have seen my son suffer no apparent ill effects,and he gains a big benefit,of easy,continuing contact with others.
I don’t think texting make kids stupid.It may make them annoying,when they try to text and talk to you at the same time.And it may make them distracted,when buzzing text messages interrupt efforts to noodle out a math problem or finish reading for school.
But I don’t see texting harming teens’ability to communicate.My son is as accustomed to nonverbal cues as any older members of our family.I have found him more engaged and easier to communicate with from a great distance,because he is constantly available via text message and responds with faithfulness and speed.
小题1:What does the underlined word “distracted” in the fifth paragraph mean?
A.Confused. | B.Absentminded. |
C.Comfortable. | D.Badtempered. |
A.For Teens,Texting Instead of Talking |
B.For Parents,Caring Much for Their Kids |
C.Advantages and Disadvantages of Texting |
D.The Effect of Communication |
A.objective | B.opposed |
C.supportive | D.doubtful |
A.It is normal for a teen to send or receive 60 text messages a day. |
B.Texting is a very popular way of communication among teens. |
C.When texting,teens never mind talking with others. |
D.The writer limited his son to send or receive text messages at first. |
People in California love to talk about “zeroemissions vehicles”,but_people_in_California_seem_to_be_clueless_about_where_electricity_comes_from.Power plants mostly use fire to make it.Aside from the new folks who have their roofs covered with solar cells,we get our electricity from generators.Generators are fueled by something—usually coal,oil,but also by heat generated in nuclear power plants.There are a few wind farms and geothermal(地热的) plants as well,but by far we get electricity mainly by burning something.
In other words,those “zeroemissions” cars are likely coalburning cars.It’s just because the coal is burned somewhere else that it looks clean.It is not.It’s as if the California Greens are covering their eyes—“If I can’t see it,it’s not happening.” Gasoline is an incredibly efficient way to power a vehicle;a gallon of gas has a lot of energy in it.But when you take that gas(or another fuel) and first use it to make electricity,you waste a nice part of that energy,mostly in the form of wasted heat—at the generator,through the transmission(传送) lines,etc.
A gallon of gas may propel your car 25 miles.But the electricity you get from that gallon of gas won’t get you nearly as far—so electric cars burn more fuel than gaspowered ones.If our electricity came mostly from nukes;or geothermal,or hydro,or solar,or wind,then an electric car truly would be clean.But for political,technical,and economic reasons,we don’t use much of those energy sources.
In addition,electric cars’ batteries which are poisonous for a long time will eventually end up in a landfill.And finally,when cars are the polluters,the pollution is spread across all the roads.When it’s a power plant,though,all the junk is in one place.Nature is very good at cleaning up when things are too concentrated,but it takes a lot longer when all the garbage is in one spot.
小题1:What does the underlined part mean in Paragraph 2?
A.People see the California Greens everywhere. |
B.People in California love to talk about zeroemissions vehicles. |
C.People in California love to have their roofs covered with solar cells. |
D.People in California have no idea that so far electricity mainly comes from burning coal,oil,etc. |
A.Electric cars are not clean at all. |
B.Electric cars are better than gasolinepowered ones. |
C.People cast doubts on electric cars’ batteries. |
D.Gasoline is an efficient way to power a vehicle. |
A.not less than 25 miles |
B.as far as 50 miles |
C.as far as 25 miles |
D.not more than 25 miles |
A.being green is good and should be encouraged in communication |
B.electric cars are not clean in that we get electricity mainly by burning something |
C.zeroemissions vehicles should be chosen to protect our environment |
D.electric cars are now the dominant vehicle compared with gasolinepowered cousins |
Vaccines battle diseases caused by bacteria and viruses.A weakened form of the germ (病菌) is introduced into the body.The body makes special substances called antibodies (抗体) to fight the germs.If the actual germs were to attack,the antibodies would fight.Because there are many kinds of flu viruses,scientists must create a new vaccine formula (处方) each year.Researchers must make a prediction.
It is like forecasting the weather.Sometimes they are right on,and sometimes they are off.But even when the vaccine does not closely match circulating flu types,it can make the illness less serious.
“The flu vaccine is not as effective as the polio (小儿麻痹症) vaccine or the measles vaccine,” says Dr.William Schaffner of Vanderbilt University School of Medicine.“It’s not a great vaccine,but it is in fact quite a good vaccine.”
But a flu vaccine doesn’t work for everyone.There are certain people who should be careful about taking it,because the vaccine is produced in eggs.Those who are allergic (过敏的) to eggs should not take it.If you have a fever,you should wait until you recover.
Some people are afraid that they might get the flu from the flu shot.Scientists say that it is not possible,because the viruses in the flu shot are inactivated.But some minor side effects such as lowgrade fever and body ache could occur.If they do,they begin soon after the shot and usually last only one to two days.
Did you know?Smallpox was the first disease people tried to prevent by putting a virus into a healthy person.In 1796,English scientist Edward Jenner placed some infected material under a boy’s skin.
小题1:The underlined word “vaccine” (in Para.1) refers to________.
A.virus used for fighting against disease |
B.antibody to fight the germs |
C.formula to fight against disease |
D.germ to be injected into the body |
A.is as effective as the polio and the measles vaccines |
B.is worse,compared with the polio and the measles vaccines |
C.does help to make illness less serious |
D.is quite good because it works for everyone |
A.those who are not allergic to eggs can take the flu vaccine |
B.not all the flu vaccines are effective for everyone |
C.you should go to a doctor if you have a fever after taking the flu vaccine |
D.it is possible that some people might get the flu from the flu shot |
A.they’ll be allergic to eggs |
B.their bodies will ache for 5 days |
C.they probably have a low fever |
D.they won’t catch a flu ever after |
For home stuff,being organized means having a place to put your things and putting them back as you go.It means hanging your coat up instead of dropping it on the floor or throwing it on a chair.It means keeping your schoolbag,your shoes,and your clean underwear in the same places so you always know where to find them.
Planning is part of being organized,too.Planning means deciding what you will do and when you will do it.Calendars,lists,and schedules can help you plan.You can buy or draw a calendar and keep it near your workplace.Making a schedule or a “todo” list for yourself is a good idea.Looking at your list helps you keep track of what you need to do.Add new things as you get assignments,and check off things when you’ve done them.Use your list to help you decide which thing is the most important to work on first.
It takes some extra efforts to organize yourself and your stuff.But once you’re organized,you feel great.The less time you spend hunting around for things or panicking about homework,the more time you have for better things,like reading a good book or playing.
小题1:According to the first paragraph,“being organized” probably means “________”.
A.looking for something with others here and there |
B.doing something according to the plan made ahead of time |
C.getting together every now and then |
D.telling you what you have to do every day |
A.leave all the things as they are |
B.hang your coat on a chair |
C.know where your clean underwear is |
D.ask your mom where your shoes are |
a.Deciding what you have to do and when.
b.Finding a notebook where you can write down your “todo” list.
c.Getting rid of the things that have been done in the list.
d.Making a “todo” list for yourself.
A.b,a,d,c | B.a,d,c,b |
C.c,b,a,d | D.d,c,b,a |
A.Planning Is Part of Being Organized |
B.A Good Beginning Is Half Done |
C.Being Organized—an Important Skill |
D.Where There Is a Will There Is a Way |
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