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3.There are many reasons why fast food has become so popular all over the world.Some think that fast food is such a hugely profitable business-and obviously people enjoy eating it,but the popularity of fast food has increased as our lifestyles have changed over the years.
The social landscape has changed immeasurably since fast food appeared in the second half of (lie 20th century.Back then,mums mostly stayed at home with the kids.Dads went to work,and they all got a healthy home-cooked meal at the end of the day.The lifestyle was slower.In this age,some mums still stay at home,but many are out at work,and some are single parents.If both parents are at work,they are often content just to throw something into the oven or the microwave,because after a hard and busy day,people don't have the time to create a meal-or at least they think they don't.
Fast food isn't just limited to eating out and ordering in-it'S now so easy to get a ready meal from the supermarket.You can pick up any kind of food you can think of at most supermarkets-Chinese,Italian,Japanese or Thai.There are healthy lifestyle options,but most people,unless they are on a specific diet,tend to be seduced(引诱)by the images they see on the packaging,and the description of the meal inside.
The proportion of single households has increased greatly since fast food was invented.While families might make an effort to eat together and eat fresh,home-cooked food,the single lifestyle doesn't often allow for this.Many people who live alone simply can't be bothered to make a big effort to cook for themselves.Some don't know how to.
It will take a major shift in lifestyle and cooking ability to lessen the hold that junk food has over the population and replace it with good home cooking.

68.According to the author,what's the most probable reason why fast food has become so popular?A
A.People's lifestyles have changed.
B.Fast food makes people's life easy and convenient.
C.Businessmen can make big profit from selling fast food.
D.People don,t have the time to create a meal after a hard and busy day at work.
69.What was the life like in the first half of the 20th century?D
A.Fast food was somewhere to be found. B.People knew a little about fast food.
C.Things were cheap but life was hard. D.Most family ate a mum-cooked meal at home.
70.What might be the author's attitude towards the future of"home-cooked food"?B
A.Negative. B.Optimistic. C.Uncertain. D.Not mentioned.

分析 本文主要讲述了我们生活方式的变化对快餐店飞速发展的影响.

解答 ADB
68   A   细节题. 根据文章第一 段but the popularity of fast food has increased as our lifestyles have changed over the years.可知由于我们生活方式这几年的变化导致快餐店的飞速发展.故选A.
69   D   细节题. 根据文章第二 段lie 20th century.Back then,mums mostly stayed at home with the kids.Dads went to work,and they all got a healthy home-cooked meal at the end of the day. 可知在20世纪上半世纪大多数家庭都在家里吃母亲做的饭,故选D.
70     B  细节题. 根据文章最后一段It will take a major shift in lifestyle and cooking ability to lessen the hold that junk food has over the population and replace it with good home cooking 可知如果想转变垃圾食品代替家庭食品的趋势,那需要生活方式的转变和做饭能力的提升,故选B.

点评 做阅读理解时要快速的浏览全文,把握文章主旨大意,带着问题回到原文,寻找细节或概括相应的答案,最后要理清作者写作思路.

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B.Florida workers could be trained to make shoes.
C.we should fully use our absolute advantage in our advantaged field.
D.our comparative advantage is equal to our absolute one as to making fortunes.
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B.He needn't do it by himself for his riches..
C.He would rather do something more valuable.
D.Changing oil is beyond his ability.
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B.You must work hard to improve your absolute advantage to be the best worker.
C.If other's absolute advantage is larger,your comparative advantage is smaller.
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75.This article can be entitled"A".
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B.The Advantage of Absolute Advantage
C.Absolute Advantage-the secret to make different talents
D.Comparative Advantage-the way to achieve outstanding results.

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科目:高中英语 来源: 题型:阅读理解

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To understand better why the northern Rocky Mountains region has been hit especially hard by wildfires,scientists from the University of Arizona in Tucson looked at weather,snow,and fire records from 1970 to 2003.^
Their study showed that,between 1987 and 2003,fires burned an area 6.5 times larger than the area burned between 1970 and 1986.The fire season also started earlier-,and its average length increased by 78 days.
Warmer spring and summer temperatures appear to be part of the explanation for this change.The average temperature in the study's more recent period was 0.871 higher than it was in the earlier period.And this trend is likely to continue.Experts predict that average summer temperatures may rise between 2¾and 5¾by the year 2050 in western North America.‘
Hie timing of snowmelt appears to be another cause of the fire boom.When snow melts early in the season,forests become drier through the summer and catch fire and burn more easily.Western snow packs now typically melt a week to a month earlier than they did 50 years ago,according to recent studies.
Some people have blamed the growing fire risk on policies that allow bush and branches to build up on forest floors.But clearing bush by itself won't help much if changes in climate are largely responsible for increasingly severe forest fires.
43.The main purpose of studying the records from 1970 to 2003 was toD.
A.find out solutions to forest fires
B.prevent wildfires from happening frequently-
C.know more about the climate changes in the past decades
D.find out the causes of wildfires in the northern Rocky Mountains region
44.Scientists fix>m the University of Arizona found out the following EXCEPTD
A.western snow packs melt earlier than they did 50 years ago
B.fires burned larger area between 1987.and 2003 than between 1970 and 1986
C.the fire season between 1987 and 2003 was longer than that between 1970 and 1986
D.the average summer temperature will be I9C and 5¾higher by 2050 than it is now
45.Which of the following statements will Scientists from the University of Arizona agree to?C
A.More wildfires lead to the trend of global warming.
B.Hot summers have nothing to do with the increasing wildfires.
C.The earlier snow melts,the more probably forest fires will happen.
46.Clearing bush will help control the increasingly severe forest fires.What is the main idea the author aims to express in the passage?C
A.The damages caused by wildfires.
B.The results of a study on wild fires.
C.The causes of fires in the United States.
D.The changes in climate in the western United States.

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科目:高中英语 来源: 题型:阅读理解

12.To help make up for sleep lost during marathon night flights,migrating(迁徙) birds take hundreds of power nap(小睡) during the day,each lasting a few seconds.
Every autumn,Swainson's thrushes(画眉) fly up to 3,000miles from their breeding grounds in northern Canada and Alaska to winter in Central and South America.Come spring,the birds make the long trip back.
The birds fly mostly at night and often for long hours at a time,leaving little time for sleep.So to get through these tiresome periods,thrushes,during autumn and spring when the birds are normally migrating,change their sleep patterns,staying awake at night and resting during day.But instead of sleeping for a long period at a time,the birds took several naps a day,each one lasting only 9seconds on average.
The thrushes also mixed up their shut-eye sessions with two other forms of sleep.In one,called unilateral eye closure,or UEC,the birds rested one eye and one half of their brains while their other eye and half brain remained open and active,protecting them from danger.
The birds also occasionally slipped into another state,one that any college student who has ever been stuck in a boring lecture can relate to.Called drownsiness(睡意),this state is characterized by a partial shutting of both eyes that still allows for some visual processing.
"In terms of quality,drowsiness may be less useful than normal sleep,but it may also be safer."said Fuchs.
What's interesting is that even animals should make up for sleep loss.That a need for sleep cannot be lost even in these birds means the importance of sleep for many,if not all,animals,not to mention human.

29.What would be the best title for the text?D
A.Migrating Birds Travel for Long Hours
B.Migrating Need Help
C.How Birds Migrate during Autumn
D.Migrating Birds Take Many Daily Power Naps
30.According to the text,when having drowsiness,the thrushesC.
A.will rest one eye and the other active
B.will often sleep during day
C.will still be careful with the possible dangers
D.will not see anything in front of them
31.What can we learn from the text?A
A.Sleep is important for human being.
B.Animals need sleep to rest.
C.Migrating birds need sleep only during day.
D.College students often have drowsiness in fall.

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科目:高中英语 来源: 题型:阅读理解

13.A glass a day keeps obesity at bay.Alcohol has always been thought to cause weight gain because of its high sugar content,but new research suggests a glass a day could form part of a diet.Looking at past studies they found that,while heavy drinkers do put o weight,those who drink in moderation can actually lose weight.
A spokesman for the research team at Navarro University in Spain says,"Light to moderate alcohol intake,especially of wine,may be more likely to protect against,rather than promote,weight gain."The Inter national Scientific Forum on Alcohol reviewed the findings and agreed with most of the conclusions,particularly that current data do not clearly indicate if moderate drinking increases weight.
Boston University's Dr.Harvey Finkel found that the biologic mechanisms (生物学机制) relating alcohol to changes in body weight are not properly understood.His team pointed out the strong protective effects of moderate drinking on the risk of getting conditions like diabetes (糖尿病),which related to increasing obesity.Some studies suggest that even very obese people may be at lower risk of diabetes if they are moderate drinkers.
The group says alcohol provides calories that are quickly absorbed into the body and are not stores in fat,and that this process could explain the differences in its effects from those of other foods.They agree that future research should be directed towards assessing the roles of different types of alcoholic drinks,taking,into consideration drinking patterns and including the past tendency of participants to gain weight.
For now there is little evidence that consuming smfill to moderate amounts of alcohol on a regular basis increases one's risk of becoming obese.What's more,a study three years ago suggested that resveratrol,a compound present in grapes and red wine,destroy fat cells.
24.Who is the passage intended for?B
A.Those who produce wine.
B.Those who have drinking habit.
C.Those who sell alcohol      
D.Those who wish to quit drinking.
25.What does the phrase"in moderation"in the first paragraph refer to?C
A.Excitedly.B.Carefully.C.Properly.D.Frequently.
26.What can we learn from the passage?D
A.Current data clearly show that moderate drinking increase weight.
B.Resveratrol is proved to increase the risk of becoming fat.
C.The specific roles of different types of alcoholic drinks are very clear.
D.The research found moderate drinking has a strong protective effect.
27.What is most likely to be discussed in the paragraph that follows?D
A.How to do some easy experiments.
B.How to reduce the calories contained in wine.
C.How to make wine in a healthy way.
D.How to prove the finding mentioned above.

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