In the dark forests ________ some large enough to hold several English towns.

   A. stand many lakes                                    B. lie many lakes

   C. many lakes lie                    D. many lakes stand

【详解】本题考查倒装结构，完全倒装。同时stand 和lie的区别。stand是突出的，lie是平躺的，湖不可能是突出的，所以此题应该选择lie。

代词：人称、物主、反/自身、指示、相互、疑问、不定代词

 As they were classmates, ________ was no wonder that they should do the work in the same way

  A) This            B) That           C) There         D) It

D
　　In the atmosphere,carbon dioxide actd rather like a one-way mirror or the glass in the roof of a greenhouse which allows the sun's rays to enter but prevents the heat from excaping.
　　According to a weather expert's prediction,the atmosphere will be 3 warmer in the year 2050 than it is today, if man continues to burn luels at the present rate. If this warming up took place,the ice caps in the poles would begin to melt,thus raising sea level several meters and severely flooding coastal cities.Also，the increase in atmospheric temperature would lead to great changes in the climate of the northern hemisphere(半球),psooicbly resulting in an alteration of earth's chief food growing zones.
　　In the past,concern about a man - made warming of the earth has concentrated on the Arctic because the Antarctic is much colder and has a much thicker ice sheet.But the weather experts are now paying more attention to West Antarctic,which may be affected by a warming on the scale that will possibly take place in the next fifty years from on burning of fuels.
　　Satellite pictures showthat large areas of Antarctic ice are already disappearing.The evidence available suggests that a warming has taken place.This fits the theory that carbon dioxide warms the earth.
　　However,most of the fuel is burnt in the northern hemisphere,where temperatures seem to be falling.Scientists conclude,therefore,that up to now natural influences on the weather have exceeded those caused by man.The question is:Which natural cause has most effect on the weather?
　　One possibility is the variable behavior of the sun.Astronomers at one research station have studied the hot spots and cold spots(that is,the relatively less hot spots) on the sun. As the sun rotates(旋转),every 27.5 days,it presents hotter or colder faces to the earth,and different aspects to different parts of the earth.This seems to have a considerable effect on the distribution of the earth's atmospheric pressure,and consequently on wind circulation.The sun is also variable over a long term:its heat output goes up and down in cycles,the latest trend being downward.
　　Scientists are now finding mutual relations between models of solar weather interactions and the actual climate over many thousands of years ,including the last Ice Age.The problem is that the models are predicting that the world should be entering a new Ice Age and it is not.
　　One way of solving this theoretical difficulty is to assume a delay of thousands of years while the solar effects overcome the inertia(不活动，惰性) of the earth's climate.If this is right,the warming effect of carbon dioxide might thus be serving as a useful counter balance to the sun's diminishing heat.
　　68.It can be concluded that a concentration of carbon dioxide in the atmosphere would ___.
　　　A.mean a warming - up im the Arctic
　　　B.raise the temperature of the earth's surface
　　　C.prevent the sun's rays from reaching the earth's surface
　　　D.account for great changes in the climate in the northern hemiphere
　　69.Although the fuel consumption is greater in the northern hemisphere,temperatures there seem to be falling.This is _______.
　　　A.mainly because the levels of carbon dioxide are rising
　　　B.partly due to variations in the output of solar energy
　　　C.possibly because the ice caps in the poles are melting
　　　D.exclusively due to the effect of the inertia of the earth's climate
　　70.On the basis of their models,scientists are of the opinion that ________.
　　　A.the climate of the world should be becoming cooler
　　　B.the new Ice Age will be delayed by the greenhouse effect
　　　C.the man - made warming effect helps to increase the solar effects
　　　D.it will take thousands of years for the inertia of the earth's climate to take effect

EAT YOUR VEGETABLES.　Wash your hands.　Always say "please"　and　"thank you　".We are full of advice for our children,　but when it comes to money,　we often have little to say.　As a result,　our children may grow up with clean hands and good manners,　but without any idea how to　manage their money.Here are some basics that will help guide them their entire lives：
Show them the future.　If your 13-year-old girl were to save $1.000,invest(投资)it at 8% and add $100 every month,　by the time she's 65,she would have $980,983!zxxk
Be careful of credit(信用).Credit cards can help you buy necessary things and build a credit history,　but they must be used responsibly,　which means paying off your debt in time.　Explain to your children that when you buy something using a credit card,　you can easily end up paying two or three times what you would have paid if you used cash.
Teach patience.　Suppose your child wants a new bicycle that costs $150.Rather than paying the cash,　give him some regular pocket money and explain that by putting aside,say,$15 each week,　he will be able to buy it for himself in only ten weeks.
Provide incentive.　Tell your children the importance of saving.　"For every dollar he or she agrees to save and invest rather than spend,　you agree to add another dollar to the pot,　"says Cathy Pareto,　expert in money planning.
Explain your values.　Values and money are deeply intertwined(缠结在一起),　says 　Eilleen 　Gallo,　co-author of The Financially Intelligent Parent.　When your child demands that you buy something,　explain why you really don't want to buy it.　"You might say, 'I'd rather save that money for your education,'"　advises Gallo.　Every time you spend or don't spend money,　you have a chance to share your values.
【小题1】The writer gives some basics to help ____ in a proper way.