18．Do you want to know something about children in Africa?What do they do for fun every day?Find out——青夏教育精英家教网—

18．Do you want to know something about children in Africa（非洲）？What do they do for fun every day？Find out here：
Education
School is expensive for many African children．Lots of families don't have money to buy school uniforms or exercise books even though they don't have to pay for school．
For those who can go to school，they have a lot to learn．Some take two language classes：English or French，and their first language．There are also some other subjects．Chorestake up much of children's time after school．They have to get water and firewood for the family every day．Also there's cleaning，washing and helping Mum with the meal．
Daily fun
Sports are very popular there．Children can make goals with twigs （嫩树枝）and their own footballs with plastic and bits of string （绳子）．They play in the country and the streets of old towns．There're many football teams for teenagers in Africa．
Internet
It's really expensive to get on the Internet．To surf the net for 20hours costs over 600yuan．This is more than the average （平均的） monthly pay per person．
Egypt and South Africa are the top two users of the Internet in Africa．All of the capital cities there can get on the Internet．
62．The article is mainly aboutD．
A．education in Africa        B．children's school life in Africa
C．the Internet in Africa       D．children's daily life in Africa
63．The underlined word"Chores"probably meansB．
A．网上冲浪       B．家务杂活     C．体育活动      D．家庭作业
64．Where can the children play football？D
A．in the country
B．in the street
C．in the football field
D．A & B
65．Which one is True according to the passage？C
A．basketball is popular among children
B．children in Africa have to pay for school
C．people may get higher pay in Egypt and South Africa than in others
D．some children in Africa have to take two foreign language classes．

17．Many animals hide（躲藏） to stay alive．They hide in many ways．Some animals hide in leaves； some animals hide in snow．Usually their colors or shapes（形状） help protect them．It's hard to see an Arctic bear in snow．Its white fur helps protect it．Chameleons（变色龙） can hide by changing colors．Their skin turns the same color as what is around them．Some chameleons can change colors in five minutes．
Many animals try to look bigger than they are to stay alive．Some animals can make other animals think they are very big．If they look very big，animals that are looking for food will run away．Bears can walk on two legs．They look very，very scary（可怕的）．Some animals will run away from them．
Many animals try to stay around other animals．This helps them stay alive．Zebras stay close together so that they can help each other look out of danger．Seeing many stripes（条纹） at once can also confuse（使混乱） animals that want to eat them．Some birds stay in a circle，each toward a different direction．In this way they can also help each other stay alive by looking around for animals that may want to eat one of them．
71．Animals have ways to stay alive．Which animal try to look bigger than they are to stay alive in the passage？D
A．Zebras．B．Chameleons．C．Birds．D．Bears．
72．Why do animals hide？D
A．Because they like to play hide-and-seek．
B．Because they are shy．
C．Because they want to catch other．
D．Because they want to protect themselves．
73．How do Chameleons hide？A
A．They change colors．B．They change shapes．
C．They hide in snow．D．They hide in leaves．
74．How do zebras hide？C
A．Become good friends．
B．Talk to each other．
C．Help each other look out for danger．
D．Eat and play together．
75．Why do animals try to look bigger than they are？A
A．They want other animals to run away from them．
B．They want other animals to follow them．
C．They want other animals to see them．
D．They want other animals to like them．

16．We each have memory （记忆力）．That's why we still remember things after a long time．Some people have very good memories and they can easily learn many things in a short time，but some people can only remember things when they say or do them again and again．Many of the great men of the world have surprising memories．
A good memory is a great help in learning a language．Everybody learns his mother language when he is a small child．He learns the sounds，remember them and then he learns to speak．Some children are living with their parents in foreign countries．They can learn two languages easily because they hear，remember and speak two languages every day．In school it is not so easy to learn a foreign language because the students have so little time for it，and they are busy with other subjects，too．
But your memory will become better and better when you do more and more exercises．

61．Why can some people easily learn many things in a short time？D
A．They always sleep very well．
B．They often eat good food and fish．
C．They read a lot of books．
D．They have very good memories．
62．When does everyone learn his mother language？B
A．At the age of six．
B．When he is a small child．
C．After he goes to school．
D．When he can read and write．
63．What does a child need to do before he can speak？C
A．He must read and write．
B．He must chat with others．
C．He must hear and remember the sounds．
D．He must think hard and listen to much music．
64．What can you do if you want your memory become better？B
A．You must eat a lot of food，especially lots of fish．
B．You must keep practicing it．
C．You must say or do things only once．
D．You must become a great man．
65．Why can a Chinese learn English easily if he is in England？A
A．Because he must speak English every day．
B．Because he will have a good memory in England，not in China．
C．Because his father is an English man．
D．Because his English teacher is better in England．

15．Time is in the year 2095．It is reported that a comet（彗星） is rushing towards the Earth．Most of it will miss our earth，but two pieces will probably hit the southern half of our planet．
On 15July，a piece about four kilometers wide enters the Earth's atmosphere（大气层） with a massive（巨大的） explosion（爆炸）．About half of the piece is destroyed but the remaining part hits the South Atlantic at 200times the speed of sound．A hole is made in the sea bed．Huge waves spread outwards from the hole．The wall of water，a kilometer high，rushes towards southern Africa at 800kilometers an hour．Cities on the African coast are totally destroyed and millions of people are drowned（淹死）．
Before the waves arrive in South America，the second piece of the comet hits Argentina．Earthquakes and volcanoes（火山爆发）  are set off in the AndesMountains（安第斯山脉）．The shock waves move north into California and all around the Pacific Ocean．The cities of Los Angeles，San Francisco and Tokyo are completely destroyed by earthquakes．Millions of people in the southern half of the earth are already dead，but the north won't escape it for long．Because of the explosions，the sun is hidden by clouds of dust（灰尘），temperatures around the world fall to almost zero．Crops are destroyed．The sun won't be seen again for many years．Wars break out as countries fight for food．A year later，no more than 10million people remain alive．
Could it really happen？In fact，it has already happened more than once in the history of the Earth．The dinosaurs were on the Earth for over 160million years．Then 65million years ago they suddenly disappeared．Many scientists believe that the Earth was hit by a piece of object in space．The dinosaurs couldn't live through the cold climate that followed and they died out．Will we meet the same end？

42．When the first piece hits the South Atlantic，it causesD．
A．an earthquake
B．volcanoes
C．an Earth explosion
D．huge waves
43．Why can't the northern half of the Earth escape the disaster for long？D
A．Because the land is covered-with water．．
B．Because wars break out among countries for living space．
C．Because people there cannot live at the temperature of zero．
D．Because crops are destroyed，so people have little food to eat．
44．By giving the example of dinosaurs，the writer tries to proveC．
A．the human beings will die out
B．animals could not live in the cold climate
C．the Earth could be hit by other objects in space
D．what happened 65million years ago was an invented story
45．Which of the following can be the best title of this passage？B
A．A history discovery
B．An event of imagination
C．A research on space
D．A scientific adventure．

14．"Friends are the family you choose"Do you know why？A new study by Yale University and the University of California San Diego can give us some reasons．
Scientists studied the genes（基因） of almost 2，000 people．Some of these people were friends，others were simply strangers．Scientists found that friends had more genes in common than strangers．
Pairs of friends had similar genes as people do with a distant relative（远亲）．This is about the human genome（人类基因组）．Although l% may not sound like much to geneticists（遗传学），it is an important number．
Most people don't even know who their distant relatives are，yet we are somehow able to choose people who are like our relatives as friends．"Nicholas Christakis，a social scientist at university told Live Science．
This might be because similar genes make people visit similar places，or similar genes mean people will have similar skills．
The most common gene that friends have is the"olfactory"gene．It affects （影响） a person's sense of smell．Imagine that you and someone else both like the smell of trees．You may often visit a park．Therefore，you may likely meet that other person and become friends．
As a result of the study，scientists set an interesting test called the"friendship source"．The test can tell whether two people could be friends by studying their genes．
Do you want to know who will be your friends with the help of the test？

31．According to the passage，how many people may not sound like much to geneticists among 2，000 people？B
A.10．
B.20．
C.100．
D.200．
32．According to the study，scientists found that friends hadA．
A．more genes in common than strangers
B．fewer genes in common than strangers
C．fewer genes in common than distant relatives
D．more genes in common than distant relatives
33．What's the meaning of"olfactory"in the passage？C
A．听觉的
B．视觉的
C．嗅觉的
D．触觉的．

13．People use money to buy food，books and hundreds of other things they need．When they work，they usually get paid in money．
Most of the money used today is made of metal or paper．But in the time long ago，people used to use all kinds of things as money．One of the first kinds of money was shells（贝壳）．
In China，cloth and knives were used as money．Elephant tusks（牙），monkey tail and salt were used in some parts of the world．Rice was also a kind of money used by the people in some islands（岛）．Some animals were used as money，too．
The first copper coins（硬币） were made in China．They were round and had a square hole in the center．Different countries have used different metals for their money．Later，some countries began to make coins of gold and silver （银）．But gold and silver were heavy to carry when people needed a lot of coins to buy something expensive．The Chinese were the first to use paper money．The first paper money looked more like a note from one person to another than the paper money used today．
Money has had an interesting story from the days of shell money till today．
71．People usually use moneyB
A．to buy gold
B．to get something they want
C．to buy shells
D．to buy something expensive
72．Long，long ago people all over the world usedDas money．
A．the same metal
B．the same paper
C．the different metals
D．all kinds of things
73．In the past，the ancient（古代的） Chinese used to have cloth and knivesB
A．as a tool    B．as money   C．as a gift   D．as a kind of goods
74．Cwas also a kind of money used by the people on some islands．
A．Gold  B．Animals C．Rice  D．Knives
75．The first paper moneyC
A．looked like the same as the paper money used today
B．looked interesting
C．looked like a note
D．had a square hole in the center．

12．We have always been interested in the moon.2，000years ago，people already knew it moves around the earth and where it would be in the sky at different times of the year．At that time，everything about the moon was learned by watching it carefully in the sky．
When scientists could use telescopes to study the moon more closely，their ideas began to change．They could see the moon was made of rocks．Most scientists thought moon rocks would be different from those on the earth．This was because they believed the moon had once been a planet that had been caught in the earth's gravity millions of years earlier．
In 1969，moon rocks were finally brought to the earth and studied．Much to their surprise，scientists found that，except for water，the moon and the earth were made of the same things．Once again new ideas were needed for this new information．
After years of study，most scientists now think that the moon was once part of the earth．They believe very early in its history，maybe 4billion years ago，something about the size of Mars hit the earth．This sent billions of rocks into space around our planet．These rocks slowly joined together and after many years became the moon．
In the future，even though our ideas about the moon may change again，we will still be interested in it．

61.2，000years ago people already knewD．
A．the earth moved around the moon
B．the moon and the earth were made of the same things
C．the moon was made of rocks
D．the moon moves around the earth
62．Before 1969most scientists thought the moon wasC．
A．part of the earth billions of years earlier
B．older than the earth
C．a planet caught by the earth's gravity
D．made of the same things as the earth
63．After years of study，most scientists now thinkB．
A．the earth was once part of the moon
B．the moon was once part of the earth
C．something about the size of Mars will hit earth in the near future
D．a lot of rocks will slowly join together to become the other moon
64．The writer wants to tell us in this passageB．
A．why people are interested in the moon
B．how ideas about the moon have changed over time
C．where the moon came from in the past
D．the people have finally learned the truth about the moon
65．From this passage we can learn thatC．
A．scientists in the past were not clever
B．scientists are so clever that they know everything
C．new information brings new ideas
D．we now know everything about the moon．

11．Besides calling 120，here is what you should do when no one is around to help．

	If you get lost，you may stay where you can be seen clearly and try your best to have a rest．In a wide open area，make a colorful cross out of rocks to show where you stay．
	When you choke （噎住） at home，make a sudden hit against the back of the chair．If you can't breathe after six tries，call 120．Leave the telephone open until help arrives．
	If you get hurt，use your hand or a scarf，or any dry cloth you can find，and push down on the wound （伤口） until the blood stops running．Don't put the cloth around your leg tightly，or you may lose your foot．
	When a fire happens，you must move close to the floor．Cover your mouth and nose with a wet towel （毛巾），make you wet from head to foot if possible and find a safe place outside．

44．If you get lost in a wide open area，you shouldB．
A．call out for help
B．make a cross out of rocks
C．phone the police
D．draw a map
45．If you choke at home，you shouldD．
A．lie on the ground
B．jump up and down
C．shout loudly
D．make a sudden hit against the back of the chair
46．You move close to the floor in a fire to keep away fromA．
A．smoke     B．light     C．noise     D．rain
47．C can help to deal with a wound．
A．A wet towel    B．A chair     C．A dry scarf        D．Some rocks．

10．Can we live without salt？No，salt is very important to us，we need salt in our food．Animals need it，too．Do you know how to get salt？Most of the salt in our country comes from the sea．People dig very big pools and let sea water in．When the sun dries up the water，people can get salt from the ground．The salt is white，clean and beautiful．
There are a lot of salt wells（井）in Sichuan．A salt well is much like a water well．People bring the well water up to the ground and then dry it in big jars over fire．In this way，they get salt．
We can also get salt from salt mines（矿）．A salt mine may be found under the ground．Some years ago，people in Jiangxi found a big salt mine and soon opened it．People there don't need salt from other places any more．
In the northwest of our country，there are many salt lakes．Some of these lakes are very big．The salt even in a big lake will be enough for our people for centuries．

54．We get most of the salt fromC．
A．salt lakes
B．salt wells
C．sea water
D．salt mines
55．Not long ago，a big salt mine was founded and openedB．
A．in Sichuan
B．in Jiangxi
C．in the northwest of our country
D．under the sea
56．Which statement is NOT TRUE according to the passage？D
A．People in Sichuan get salt from salt wells．
B．Salt is white，clean and beautiful．
C．People in Jiangxi get salt from salt mines
D．There are many salt lakes in Fujian．
57．What is this article mainly about？B
A．The importance of salt．
B．Some ways to get salt．
C．The features of salt．
D．The history of salt．

9．Hong Kong has changed a lot over the years．（改为同义句）
Therehavebeen a lot of changes in Hong Kong over the years．

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