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单选题
Walnut trees ______ environment stresses such as drought by producing significant amounts of a substance similar to aspirin.
A
turn to
B
confirm to
C
contribute to
D
respond to
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更多 “单选题Walnut trees ______ environment stresses such as drought by producing significant amounts of a substance similar to aspirin.A turn toB confirm toC contribute toD respond to” 相关考题
考题
In fact, the panic is __________. As the map shows, the drought has been confined to the south and east of Britain.
A.overheardB.overchargedC.overdoneD.overtime
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_____________ we plant, _________________our city will be.A. The more trees, the beautiful B. The less trees, the more beautifulC. The more trees, the more beautiful D. The less trees, the beautiful
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Last year we had no rain for weeks _________, so there was a serious drought.
A.in endB.on endC.at endD.by end
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D.My family and I lived across the street from Southway Park since I was four years old. Then just last year they city put a chain link fence around the park and started bulldozing (用推土机推平) the trees and grass to make way for a new apartment complex. When I saw the fence and bulldozers, I asked myself, “Why don’t they just leave it alone?”Looking back, I think what sentenced the part to oblivion (别遗忘) was the drought (旱灾) we had about four years ago. Up until then, Southway Park was a nice green park with plenty of trees and a public swimming pool. My friends and I rollerskated on the sidewalks, climbed the tress, and swam in the pool all the years I was growing up. The park was almost like my own yard. Then the summer I was fifteen the drought came and things changed.There had been almost no rain at all that year. The city stopped watering the park grass. Within a few weeks I found myself living across the street from a huge brown desert. Leaves fell off the part tress, and pretty soon the trees started dying, too. Next, the part swimming pool was closed. The city cut down on the work force that kept the park, and pretty soon it just got too ugly and dirty to enjoy anymore.As the drought lasted into the fall, the part got worse every month. The rubbish piled up or blew across the brown grass. Soon the only people in the park were beggars and other people down on their luck. People said drugs were being sold or traded there now. The part had gotten scary, and my mother told us kids not to go there anymore.The drought finally ended and things seemed to get back to normal, that is, everything but the park. It had gotten into such bad shape that the city just let it stay that way. Then about six months ago I heard that the city was going to “redevelop” certain worn-out areas of the city. It turned out that the city had planned to get rid of the park, sell the land and let someone build rows of apartment buildings on it.The chain-link fencing and bulldozers did their work. Now we live across the street from six rows of apartment building. Each of them is three units high and stretches a block in each direction. The neighborhood has changed without the park. The streets I used to play in are jammed with cars now. Things will never be the same again. Sometimes I wonder, though, what changes another drought would make in the way things are today.53. How did the writer feel when he saw the fence and bulldozers?A. Scared.B. Confused.C. Upset.D. Curious.
考题
4．— Did you have anyone ______the trees?—Yes，l had the trees ______．A． to water ;waterB． to water; wateredC． water ; to be wateredD． water; watered
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“The biggest threat to our environment today is the way we, as human beings, see out environment” does not imply that ().A、everything in the ecosystem is part of one complete wholeB、most people hold a wrong view on the environmentC、everything affects and is affected by its environmentD、people are not conscious of the importance of trees
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We shall glad to receive your offer for walnut meat, shipment, during September/October for transshipment at Hongkong.()
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The local government is worried that the drought in this region every year may lead to many people to be forced to leave their homes.()
考题
The classroom teaching environment consists of classroom environment and__________.A.social environment
B.communication environment
C.practice environment
D.game environment
考题
Walnut trees __________ environment stresses such as drought by producing significant amountsof a substance similar to aspirin.
A.turn to
B.confirm to
C.contribute to
D.respond to
考题
共用题干
Forests for CitiesYou are standing in a beautiful forest in Japan. The air is clean and smells like plants and flowers.There are 175 different kinds of trees,and 60 kinds of birds live here.______(1) You are downtown in the city of Nara,Japan,in Kasugayama Forest,the oldest urban forest in the world.It was started more than a thousand years ago,and today it's very popular with tourists and artists.Cities around the world are working to protect their urban forests. Some urban forests are parks,and some are just streets with a lot of trees.But all urban forests have many good effects on the environment.______(2)They also stop the noise from heavy traffic.They even make the weather better because they make the air 3-5 degrees cooler,and they stop strong winds. Urban forests also have many good effects on people. They make the city more beautiful. In a crowded area,they give people a place to relax and spend time in nature.______(3)In some countries,people are starting new urban forests. In England,there are now 1.3 million trees in an urban forest called Thames Chase,east of London. It was started in 1990, and it has grown very fast.Walking and bicycle clubs use the forest,and there are programs for children and artists.______(4)Some older cities don't have space for a big urban forest,but planting trees on the streets makes the city better. Scientists found that commuters（通勤人员）feel more relaxed when they can see trees.Trees are even good for business.______(5)In the future,urban forests will become even more important as our cities grow bigger. In the megacities（超大城 市）of tomorrow,people will need more green space to live a comfortable life. Planting trees today will make our lives better in the future.______(4)A: People spend more time at shopping centers that have trees.B: In hot countries,urban forests are cooi places for walking and other healthy exercises.C: But you are not in rural area.D: Trees take pollution out of the air.E: In 2033,it will have 5 million trees.F: It has many kinds of birds in the country.
考题
Forests give us shade,quiet and one of the larder callenges in the fight against climate change.Even as we humans count on forests to soak up a good share of the carbon dioxide we produce,we are threatening their ability to do so.The climate change we are hastening could one day leave us with forests that emit more carbon than they absorb.Thankfully,there is a way out of this trap-but it involves striking a subtle balance.Helping forests flourish as valuable“carbon sinks”long into the future may require reducing their capacity to absorb carbon now.California is leading the way,as it does on so many climate efforts,in figuring out the details.The state’s proposed Forest Carbon Plan aims to double efforts to thin out young trees and clear brush in parts of the forest.This temporarily lowers carbon-carrying capacity.But the remaining trees draw a greater share of the available moisture,so they grow and thrive,restoring the forest’s capacity to pull carbon from the air.Healthy trees are also better able to fend off insects.The landscape is rendered less easily burnable.Even in the event of a fine,fewer trees are consumed.The need for such planning is increasingly urgent.Already,since 2010,drought and insects have killed over 100 million trees in California,most of them in 2016 alone,and wildfires have burned hundreds of thousands of acres.California plans to treat 35,000 acres of forest a year by 2020,and 60,000 by 2030-financed from the proceeds of the state’s emissions-permit auctions.That’s only a small share of the total acreage that could benefit,about half a million acres in all,so it will be vital to prioritize areas at greatest risk of fire or drought.The strategy also aims to ensure that carbon in woody material removed from the forests is locked away in the form of solid lumber or burned as biofuel in vehicles that would otherwise run on fossil fuels.New research on transportation biofuels is already under way.State governments are well accustomed to managing forests,but traditionally they’ve focused on wildlife,watersheds and opportunities for recreation.Only recently have they come to see the vital part forests will have to play in storing carbon.California’s plan,which is expected to be finalized by the governor next year,should serve as a model.California’s Forest Carbon Plan endeavors to_______.《》（）A.cultivate more drought-resistant trees
B.reduce the density of some of its forests
C.find more effective ways to kill insects
D.restore its forests quickly after wildfires
考题
单选题The purpose of a preventer as it is used on a conventional yard and stay cargo rig is to（）.A
allow greater than normal loads to be handled by the gearB
act as an inboard guy in the event the inboard guy parts during cargo handlingC
assist the outboard guy in supporting stresses during cargo handlingD
prevent the inboard guy from parting due to stresses during cargo handling
考题
单选题What did the researchers learn from the second step?A
The trees in the new forest were in different size.B
The insects in the new forest had a different taste.C
Tamarins could get used to the new environment.D
Above 80% of tamarins survived.
考题
单选题According to the passage, we know ______.A
graffiti can make the buildings look coolB
the person who collects rubbish cart get a giftC
we can plant trees to improve the environment
考题
单选题What does the author tell us in this passage?A
How trees help prevent droughts and floods.B
The relationship between trees and man.C
How an empire fell to pieces in ancient times.D
A story of trees.
考题
单选题The deck beam brackets of a transversely framed vessel resist（）.A
hogging stressesB
sagging stressesC
racking stressesD
shearing stresses
考题
单选题Why do forests in many parts of the world slowly disappear?A
New trees are not looked after properly.B
Many trees have been cut down by man.C
Man has not paid enough attention to planting trees.D
All of the above.
考题
单选题A
The lifecycle of trees.B
The number of trees.C
The intensity of solar burning.D
The quality of air.
考题
单选题Structural stress levels in a ship are the sum of loading stresses and stresses due to（）.A
environmental loadsB
variable loadsC
ballast loadingD
mooring loads
考题
单选题The crankshaft receives and transmits the full working power of the engine and is subjected to fluctuating （）.A
bending stresses弯曲应力B
torsion stresses扭转应力C
shear stresses剪应力D
All of the above
考题
单选题Apparently the long drought has retarded the trees' growth in this area.A
slowed down B
retained C
propelled D
fed
考题
单选题Walnut trees ______ environment stresses such as drought by producing significant amounts of a substance similar to aspirin.A
turn toB
confirm toC
contribute toD
respond to
考题
单选题Prolonged and unseasonable frosts produce frost rings in deciduous trees, which grow in moderate climates. Frost rings do not appear in any of the fossilized deciduous trees that have been found in Antarctica. Hence, it is unlikely that such frosts occurred in Antarctica at the time the fossilized trees lived. Which of the following is an assumption on which the argument depends?A
There are fossilized nondeciduous trees from Antarctica that bear frost rings.B
Deciduous trees are more likely to bear frost rings than are other tree varieties.C
The process of fossilization does not completely obscure frost rings in deciduous trees.D
Present-day deciduous trees are more sensitive to changes in temperature than were the deciduous trees of ancient Antarctica.E
Prolonged and unseasonable frosts that might have occurred in Antarctica when the now-fossilized trees were still living did not always produce frost rings in deciduous trees.
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