当前位置:初中试题 > 英语试题 > 科普环保类 > We have always been warned of the dangers of forest fires. They cause _____ 85 _...
题目
题型:不详难度:来源:
We have always been warned of the dangers of forest fires. They cause _____ 85 _____ to a forest. They kill many plants and animals in an eco-system, which is a group of living things and their environment. But have you ever heard of a forest fire that can be _____86_____  for a forest? People start some of the fires with a special reason to actually do good to the eco-system.
In fact, fires are a natural part of any eco-system. Without fires, the oldest and largest trees would stop sunlight from reaching the forest floor. Fires can _____87_____ some of these old trees. When the trees die, they provide something good for the earth. New trees can grow strong and healthy in their place.
Some trees even need fires to grow. These trees hold their seeds (种子) inside. Heat from a fire allows the coat of the seeds to open up. Then the seeds fall to the ground and have the _____88____ to grow/
Scientist, who know about nature’s needs, start some of these fires, called controlled burns. A fire is started and kept under control. This way, the fire does not spread out of the area or _____89_____ a after forest fires, they can go hungry _____90_____ their food has been damaged in the fire. Small, controlled fires mean than animals will not have to move far to find food. After some time, small plants begin to grow. Animals return soon after the plants return. This _____91_____  makes an eco-system.
So the next time you hear about a forest fire, think about the good as well as the bad. It may take a new eco-system a while to return, but it will likely come back stronger and healthier than ever.
小题1:
A.illnessB.difficultyC.damageD.flood
小题2:
A.helpfulB.powerfulC.harmfulD.awful
小题3:
A.take the place ofB. get ready forC. be bad forD.get rid of
小题4:
A.timeB.waterC.chanceD.skill
小题5:
A.discoverB.coverC.butD.waste
小题6:
A.becauseB.althoughC.butD.so
小题7:
A.almostB.againC.neverD.even

答案

小题1:C
小题1:A
小题1:D
小题1:C
小题1:B
小题1:C
小题1:B
解析
【主旨大意】
文章指出森林火灾并不像人们想象的那样一无是处,有时候,可控范围内的火灾不仅无害而且还具有积极意义。比如,可控制的火灾可以使森林里的老树、死树烧掉,使阳光能够照射到地面;火灾烧掉了一些种子外层包裹的厚厚的皮,并让种子有机会得以在地面上生根发芽。
小题1:该句意为“森林火灾会对森林引起毁坏”,damage名词,意为“毁坏、损害”,flood名词,意为“洪水”;illness意为“疾病”选项C意为“困难”,故由句意答案选C;
小题1:由后边的那句话可以知道“有时候森林火灾对森林系统还是有帮助的”,故答案选A;
小题1:该句意为“森林火灾可以烧掉一些老树”,get rid of意为“去掉,除去”,故选D;而选项A为“取代,代替……”,选项B是“为……做好准备”,选项C为“对……有害处”,A、B、C均不符合题意;
小题1:此处是指经过火烧之后,有些种子厚厚的包衣被烧掉了,并掉到了地上,他们才有了生根发芽的机会。”故选C;A、B、D均不符合汉语意思;
小题1:句意为“通过这种方式,森林火灾不会传播到别的地区或者燃烧一大片森林。”cover本意为“涉及,覆盖”,此处是指不会造成大面积的森林被烧掉;选项A意为“揭露,发现”,选项D为“浪费”,都不符合题意;
小题1:此处是指森林大火过后,即使动物能够生存,他们也要经历饥饿的折磨,“因为森林中的食物被大火破坏了”,故答案选C;
小题1:此处讲一段时间之后,小的植物开始生长。动物在植物生长之后也重新回来了。“这又形成了一个(新的)食物链”,故答案选again,选项A、C、D均不符合句意 ;
核心考点
试题【We have always been warned of the dangers of forest fires. They cause _____ 85 _】;主要考察你对科普环保类等知识点的理解。[详细]
举一反三
One day at the end of the class, a wise teacher told each of her students to   1  a plastic bag and a bag of potatoes to school.
The next day she told her students: “From today on, for every person you don"t like in your lives, you can choose a potato, write the person"s name and the date   2  it and then put it in the plastic bag.” Day after day, some of the students" bags were very   3 . They were then told to carry this bag with them everywhere they went for a week. They would put it inside their quilts  , on the seats when sitting in a car or on a bus , and next to their desks at school. The days carrying the bag around with them   5  students get to know what a weight they were carrying in their minds. They had to pay attention to it all the time   6  they wouldn"t forget it. As time passed by, the potatoes went bad and   7  nasty(恶心). They all tired to get rid of them.
Too often we think of tolerance(宽容)as a gift to   8  people, and it clearly is for ourselves! If we choose to keep our sadness and hatred(仇恨)in our   9 , we will have to
carry them around all our lives.
Do you think you have got   10  from the wise teacher and what she asked her students
to do?
小题1:
A.takeB.bringC.putD.show
小题2:
A.inB.atC.onD.with
小题3:
A.heaveB.strongC.lightD.big
小题4:
A.in the morningB.in the afternoonC.during the dayD.at night
小题5:
A.keptB.madeC.askedD.allowed
小题6:
A.as soon asB.sinceC.so thatD.until
小题7:
A.soundedB.tastedC.smeltD.felt
小题8:
A.anotherB.otherC.the otherD.others
小题9:
A.handsB.eyesC.stomachsD.hearts
小题10:
A.anythingB.nothingC.somebodyD.Anybody

题型:不详难度:| 查看答案
For years scientists have been arguing about whether nature or nurture (后天) decides what people will be like. Is it nature— what people are (41) with— that decides what they will be like? (42) is it nurture —what(43) to people when they are born —that decides what they will be like?
Scientists have been studying twins to (44) if they can find the answer, because twins start out with the (45) DNA. Sometimes twins don’t live together at birth and grow up in different (46) and different places— so the nature is the same for both, but the nurture is different.
When scientists (47) these twins in their later life, they some times find some surprising (48).
Jim Springer and Jim Lewis were adopted(收养)by two different families at birth. They first met each other again thirty-nine years (49) and discovered they had a lot in (50). Both had been (51) twice. Their first wives were both named Linda and their second wives were both named Betty!
Each twin had a son — one called his son James Alan and the (52) called his son James Alan, too. Their children each had a dog called “Toy”. They even arrived at their first (53) in the same color of car.
So far twin (54) seem to show that both nature and nurture are important. What we have from birth, and how and where we live help to build (55) we are.
小题1:
A.bornB.grownC.taughtD.made
小题2:
A.SoB.AndC.IfD.Or
小题3:
A.pretendsB.happensC.fallsD.depends
小题4:
A.hearB.winC.seeD.plan
小题5:
A.niceB.sameC.fullD.free
小题6:
A.familiesB.citiesC.countriesD.nations
小题7:
A.believeB.suggestC.receiveD.compare
小题8:
A.numbersB.discoveriesC.resultsD.decisions
小题9:
A.agoB.laterC.forwardD.behind
小题10:
A.commonB.factC.dangerD.trouble
小题11:
A.mentionedB.marriedC.succeededD.interviewed
小题12:
A.eitherB.elseC.otherD.only
小题13:
A.competitionB.educationC.purposeD.meeting
小题14:
A.studiesB.moviesC.challengesD.mysteries
小题15:
A.whatB.whenC.whereD.who

题型:不详难度:| 查看答案
The expression “down to earth” means being open and honest. It is easy to get on with some one who is down to earth. A down-to-earth person is the opposite of someone who acts important or proud.
Down-to-earth people could be important members of society. But they do not consider themselves to be better than others who are less important. A person who is filed with his own importance and pride is said to have his nose in the air.
Americans use another expression that is similar in some ways to down to earth. The expression is both feet on the ground. Someone with both feet on the ground is a person with a good understanding of reality(现实). He may have dreams, but he does not allow them to have influence on his understanding of what is real.
The opposite kind of person is one who has his head in the clouds. Someone with his head in the clouds is a person whose mind is not on what is happening in real life. Such a person may be called a day-dreamer.
When we have both our feet on the ground, and when we are down to earth, we do not have our noses in the air. We act honestly and openly to others. Our lives are like the ground below us— solid(牢固的) and strong.
小题1:A down-to-earth person could be_____________.
A.social and proudB.good and oppositeC.real and importantD.strong and changeable
小题2:The expression “has one’s nose in the air” means_____________.
A.眉飞色舞B.目中无人C.瞻前顾后D.春风得意
小题3:This passage mainly talks about_____________.
A.the use of some expressionsB.dreams and achievements
C.the lifestyle of honest peopleD.honesty and understanding
小题4:If you want to understand what is real in life, you have to_____________.
A.get along with other people easilyB.learn from those who are down to earth
C.be a good dreamer with quick mindD.have both your feet on the ground
小题5:If you only consider your own importance, __________.
A.you’ll think you are better than others
B.your life will be like the solid and strong ground
C.you’ll be hated by down-to-earth people
D.your life will be filed with love

题型:不详难度:| 查看答案
A. they should spend sometime
B. the students are not expected
C. they had so many choices
D. many of them told me
E. many of them expressed disappointment
In my spoken English class, I asked the students about their university life. To my surprise, 小题1:. After their highly controlled(控制) high school lives, they were having difficulty getting used to (习惯) the free time in the university. When I asked them to describe their high school lives, 小题2:they got up at six in the morning and studied until ten or even later at night. Most of this time was spent doing lots of homework.
When they entered the university, in my opinion,小题3:to spend all their waking hours studying. They should also take an active part in social activities. They should learn to divide their time outside of class between sport sand clubs. What’s more, 小题4:watching TV and chatting with their roommates. But what surprised me most was that many of them did not seem happy because小题5:. They felt that they should be doing something else what ever they were doing. That’s why they were not happy.
To those students, my advice is: Get used to it and learn to make decisions for yourselves.
题型:不详难度:| 查看答案
We live in the computer age. People use computers to do much of their work. But few people know how to look after them. Remember the following when you use your computer:
1.Keep your computer in a cool, dry room. Too much or too little heat is bad for computers. Damp(潮湿) is also bad for them.
2.Do not let people smoke near your computer. Smoke of all kinds is very bad for many parts of a computer.
3.Do not eat or drink when you are near your computer. Pieces of food and a little water in the keyboard are also bad for a computer.
4.Keep your screen clean and do not have it too bright. They are bad for your eyes. Make sure the screen is not too far from or too near your eyes. Some people use different glasses to protect their eyes when they use a computer.
小题1:Computers can          people to do a lot of work.
A.useB.help C.makeD.take
小题2:Few people know how to          their computers.
A.look at B.try out C.look forD.take care of
小题3:A computer works well at a temperature of         .
A.0℃B.-5℃C.20℃D.35℃
小题4:Smoke is not good for many parts of a computer, is it?
A.Yes,it is.B.No,it isn"t.C.Yes,a little.D.Not at all.
小题5:A dirty screen or a very bright screen is    for your eyes.
A.badB.goodC.usefulD.helpful

题型:不详难度:| 查看答案
版权所有 CopyRight © 2012-2019 超级试练试题库 All Rights Reserved.