题目内容

6.The hospital obviously needs to balance thebudget(预算) each year.

分析 很明显,这家医院每年都需要平衡它的预算.

解答 答案:budget.考查名词.balance the budget表示"平衡预算",即收支平衡.

点评 考查名词.budget的用法:
1:budget用作名词的基本意思是"预算",指计划着怎样花钱.
budget的用法2:也可指政府一年一度的财政预算,还可指一项计划中的"预算额,经费".
budget的用法例句:
1.Buying budget-priced furniture needn't mean compromising on quality or style.买价钱经济的家具并不意味着就要牺牲质量和样式.
2.The Budget does expose the lies ministers were telling a year ago.预算案无疑揭穿了部长们一年前所说的谎话

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1.Have you ever noticed the colour of the water in a river or stream after a heavy rainfall?What do you think caused this change in colour?It is soil that has been washed into the river from the riverbank or from t}le nearby fields.
Components of Soil
Soil is made up of a number of layers(层),each having its own distinctive colour and texture.The upper layer is known as the litter.It acts like a blanket.limiting temperature changes and reducing water loss.The topsoil layer is made up of small particles of rock mixed with rotten plant and animal matter called humus(腐殖质),which is black and gives the topsoil its dark colour.This layer is usually rich in nutrients,oxygen,and water.Below the topsoil is the subsoil,a layer that contains more stones mixed with only small amounts of organic matter.This layer is lighter in colour because of the lack of humus.Beneath the soil lies a layer of bedrock.
Soil forms from the bottom up.Over time bedrock is attacked by rain,wind,frost,and snow.It is gradually broken down into smaller particles in a process called weathering.Plants begin to grow,and rotten materials enrich the topsoil.Most of the soil in Eastern Canada.for example.Was formed from weathered rock that was exposed when the ice disappeared l2,000years ago.
Water Beneath the Soil
Surface water collects and flows above the ground in lakes.ponds.and rivers.Once in the soil or rock,it is called groundwater.Gravity pulls groundwater through the soil in a process called percolation(渗透).Eventually the water reaches a layer called the water table.Under this is bedrock through which water cannot percolate.
As water percolates downward,it dissolves organic matter and minerals from the soil and carries them to deeper layers.This causes a serious problem because plants require these nutrients for growth.
Soil pH
Soil can be acidic.neutral.or basic.The pH of the soil is determined by the nature of the rock
from which it was formed.and by the nature of the plants that grow and rot in it.
The acidity of rain and snow can lower the pH of the groundwater that enters the soil.By burning fossil fuels such as coal,oil and gasoline,humans have been contributing to higher levels of acidity in many soils.When fossil fuels are burned.gases are released into the air and then fall back to earth as acid rain.Acid soil increases出e problem of carrying nutrients to lower soil levels.As nutrients are removed,soil is less fertile.Plants grow more slowly in acidic soil,and also become easily attacked by diseases.
67.The layer of soil that provides necessary nutrients for plant growth is called.B
A.1itter    
B.topsoil    
C.humus     
D.subsoil
68.According to the text.which of the following is NOT true?B
A.Soil forms from weathered rock on the earth surface.
B.The deeper layer of soil is darker in colour than the surface soil.
C.Air pollution is partially responsible for acid soil.
D.Groundwater tends to carry away nutrients for plant growth.
69.We can infer from the passage that the water table liesC.
A.between the topsoil layer and the subsoil layer
B.in the subsoil layer above bedrock
C.between the subsoil layer and bedrock
D.in the bedrock layer beneath the subsoil
70.The underlined word"dissolve"is used to express the idea that organic matter and minerals from soil areD.
A.rushed away into the river
B.cleaned and purified by water
C.destroyed and carried away by water
D.mixed with water and become part of it.
18.These days,there are very few wild animals left in the UK.The wolves have gone.The bears have been hunted to extinction.Fortunately,there are a few badgers(獾)---Oh,well,actually,not for long as the British government has just decided to kill them too!But why?
Badgers are fascinating creatures.The black and white mammals live underground in"setts",which they dig out of the earth.They are extremely brave,fighting off larger animals such as bears and wolves.The problem is that some badgers carry"Bovine Tuberculosis"( BTB ),an infectious disease caused by the bacterium Mycobacterium Bovis ( M.Bovis ) which can cause TB in some other animals,including cattle.
For farmers,this is a serious issue.In 1998in the UK,almost 6,000cows were killed to control the disease.And in 2010,more than 30,000animals were destroyed.It's expensive too.Bovine TB costs the UK about£100million per year.And some believe that the disease could end up costing the economy£9billion over the next 40years if nothing is done about it.
Experts say that badgers are responsible for about 50% of the infected cattle.So,after much debate,the government has agreed to a badger cull(杀戮).This will mean about 30,000of the innocent creatures will be wiped out to fight the disease.Environment Secretary Caroline Spelman admitted that there was"great strength of feeling"about it,but said,"I believe this is the right way forward."
Of course,many are against the measure,including conservationists and animal rights activists.They claim that killing the badgers in controlled zones wouldn't work because badgers from neighboring areas would simply move into the empty setts and become infected too.Furthermore,they believe that the way cattle are raised intensively,and transported around to lots of different farms during their lives is probably the biggest cause of the spread of the disease.
Most ordinary people are against the measure too.A survey suggests about two-thirds are against killing the badgers,with majorities against killing them regardless of age,region and gender.One of the alternatives to the cull involves using vaccine(疫苗) on badgers.However,this costs an average of£2,250per year per square kilometer.Trapping and shooting badgers costs£2,500per year,but shooting free-running badgers only costs about£200per year ( per square kilometer ).ks5u
So,with that in mind,it's easy to see how the government arrived at their decision.Money talks!
25.Why does the government want to kill the badgers?B
A.Because there is no other choice to cut the spread of the disease.
B.Because badgers carry TB,a disease which can infect other animals.
C.Because they almost wiped out an entire population of cattle.
D.Because it might be an effective way to fight TB at the least expense.
26.Which of the following statements is TRUE?C
A.Some people object to culling because it costs much more to trap and shoot badgers.
B.In the following four decades,£9billion will be spent on TB.
C.Based on the survey,people of different age groups,regions and both genders are against killing the badgers.
D.Caroline Spelman thought badgers should be culled despite people's strong reaction.
27.Who is strongly for the killing the badgers according the passage?A
A.The government           
B.Most ordinary people
C.Conservationists           
D.Animal rights activists.
7.Sitting for more than three hours a day can decrease a person's life expectancy(预期寿命)by two years,even if her or she is physically active and gets rid of (摆脱)dangerous habit like smoking,according to a study.Watching TV for more than two hours a day can worsen that problem,decreasing life expectancy by another 1.4 years.
The analysis comes just two years after Australian researchers found that people who said they watched TV for more than four hours a day were 46% more likely to die of any cause than people who said they spent less than two hours a day watching TV.Those watching TV more than four hours a day were also 80% more likely to die of cardiovascular (心血管的) disease."Long-sitting behavior is something we need to take note of beyond telling people to get 30 minutes of activity a day,"said Peter T.Katzmarzyk,one of the lead researchers.But while the evidence of illnesses is increasing,it remains difficult for many people to find time to get on their feet,especially if they do desk jobs.
"Try to stand as much as you can,"Dr Katzmarzyk said."Typically when you are on the telephone you can stand and use the speakerphone.Instead of e-mailing someone in the office,just get up and so to talk to them."However,Dr Katzmarzyk added,standing shouldn't be alternative to exercising,but an alternative to sitting."Several studies show that when you're sitting,your leg muscles are completely inactive,"he said."When you're sitting and completely inactive,this is when you run into trouble managing blood sugar."
25.What is the main idea of the first paragraph?C
A.Watching TV too long can worsen our mental health.
B.We should be active and give up smoking.
C.Sitting for too long a time can shorten one's life.
D.Smoking too much can be harmful to health.
26.The  researchers draw the conclusion of the effect of long-sitting behavior byA.
A.making comparisons(比较)          
B.listing figures
C.giving examples                   
D.classifying facts
27.What does  Dr Katzmarzyk think of long-sitting behavior?B
A.It warns  people to exercise 30 minutes a day.
B.It's a bad behavior worth considering seriously.
C.It can lead to death at once.
D.It is good for desk job workers.
28.According to Dr Katzmarzyk,if you are sitting all the time,you mayD.
A.phone your friends and talk about your problem
B.put on weight quickly and become more  inactive 
C.want to have more sugar for your meals
D.find it hard to keep your blood sugar proper.

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