14．Have you ever had trouble sleeping in a new place?Lots of people do．And now researchers from Brow——青夏教育精英家教网——

Have you ever had trouble sleeping in a new place？
Lots of people do．And now researchers from Brown University in Rhode Island think they know why．They found that one-half of the brain"remains more awake"than the otherhalf when people are trying to sleep in a new place．
The sleep findings were reported in Current Biology by Brown University．In their report，the researchers said many people report they have a harder time sleeping the first night at a hotel or other places outside their home．They call it"first-night influence"．"In Japan they say，"If you change your bed，you can't sleep，'"said Yuka Sasaki，one of the report's writers．"You don't sleep very well in a new place．We all know about it．"
The researchers measured brain waves （测量脑波） for 35volunteers over two nights in a laboratory．The two nights were a week apart （间隔）．They found during the first night the left half of the brain was more active than the right half．This was during the first deep-sleep period，the researchers said．
Sasaki said a lot of questions remain．
Researchers did not keep measuring brain waves all night long．So，they don't know if the left half keeps"watch"all night，or whether it"works in shifts （轮换） with the right half later in the night"．They also do not know why the brain activity，at least during the first period of deep sleep，is always on the left half．
For some，this research may be calming．It is good to know that our brain is"looking out for us"in a new place．But it may not help with sleep．That brain activity，at least according to this new research，makes it harder to get the sleep people need to wake up well rested in the morning．

根据材料内容选择最佳答案，并将其标号填入题前括号内．
51．How many times did the researchers measure brain waves for 35volunteers？B
A．Once．
B．Twice．
C．Three times．
D．Four times．
52．The researchers foundD during the first deep-sleep period．
A．the brain waves remained the same
B．the brain activity helped with sleep
C．the right half of the brain kept"watch"
D．the left half of the brain was more active
53．Which of the following is one of the questions that remain？C
A．Whether the new bed keeps you from sleeping．
B．How you have trouble sleeping in a new place．
C．Why the brain activity is always on the left half．
D．What people can do when they can't sleep well．
54．The underlined word"calming"has the closest meaning to"A"．
A．pleasing
B．different
C．serious
D．strange
55．What is the text mainly about？D
A．What we will have to do to sleep well．
B．How researchers measure brain waves．
C．Who doesn't sleep well in a new place．
D．Why it's harder to sleep in a new place．

13．It was dark outside the car window that it was hard to see anything．
"Can I have a carrot，Mum？"Riley asked．
"I don't have any carrots，"her mum said．"If I eat one now，it might help me see in the dark．"
    Would eating a carrot really help Riley？What is special about carrots？A clue to what makes a carrot special is its color．Carrots are orange because they store beta-carotene（β胡萝素）．Beta-carotene is a way to talk about vitamin A （维生素A）．Your eyes need vitamin A．It helps them work．
    When light hits your eyes，very small parts inside turn the light into messages．The messages go to your brain（脑），and then you know what you're looking at．Your eyes can only turn light into messages when it has a special chemical（化学物质），that's where vitamin A comes in．Your eyes use vitamin A to make the special chemical．Every time your eyes change light into messages，a little bit of the chemical is used up．By the end of the day，you're looked at hundreds of things．That uses up a lot of the chemical．Your eyes need to make more．
    What should you eat if you don't like carrots？Don't worry．Other fruits and vegetables have vitamin A，too．The secret is in their color．Most orange or red fruits store some beta-carotene，or vitamin A．Sweet potatoes，red peppers，mangoes（芒果） are a few that have the same orange secret．Can you think of any more？

61．Riley wanted a carrot because she thoughtC．
A she liked it
B．she was thirsty
C．it could help her see in the dark
D．it was sweet and delicious
62．The underlined word"clue"here in Chinese means"D"．
A．告知
B．线路
C．方法
D．线索
63．How can Vitamin A help your eyes work？D
A The special chemical can stop your eyes from using up Vitamin A
B．Vitamin A can stop your eyes from using up the special chemical．
C．The special chemical is used to make Vitamin A the light is turned into messages with．
D．Vitamin A is used to make the special chemical the light is urned into messages with．
64．Which one is NOT true according to the passage？B
A．Carrots are orange because they store beta-carotene or vitamin A．
B．Any food which is orange or red must have some Vitamin A．
C．Most fruits that are orange or red store some beta-carotene or Vitamin A．
D．Sweet potatoes，red peppers，and mangoes have the same orange secret．
65．The passage mainly tell us thatC．
A．we can't see clearly in the dark unless we eat any carrots every ay
B．we can't see clearly unless we eat any orange or red food everyday
C．we should eat some food with Vitamin A so that we can see clearly
D．we should eat some fruit with beta-carotene so that we can see in the dark．

12．Someday in the future we may not need to have money in our pockets．Is life easier when people don't need to carry any money at all？Is money heavy to carry？Is it safe to carry money？Maybe in the future each of us will have only one small credit card（信用卡）．We will use it instead of money to buy all the things．
Of course we may still have some of the same problems with cards we now have with money．For example，we lose money from time to time．Maybe we will lose the cards．Maybe someone will take the cards．Someone may even make a card that looks like our cards．Since we can't buy anything without our cards，the credit cards may be no better than money．
Is there something easier to use than credit cards？Each of us has a thumbprint（拇指指纹）．No two thumbprints are the same．Maybe someday the government will keep people's thumbprints with a number．When you want to buy something，you will put your thumb on a machine or a computer．Each store or business will posses one．Everyone's thumbprints will be in the computer．It will be difficult to lose our thumbprints!It will be difficult for someone to steal it or to make one like it．

56．The writer probably agrees that credit cards areB to carry than money．
A．heavier
B．easier
C．more difficult
57．What may be a problem with credit cards in the future？A
A．We may lose the cards from time to time．
B．We won't be able to make enough cards．
C．We may not know how to use the cards．
58．Someday the government may keep people's thumbprints with aC．
A．sign
B．note
C．number
59．The underlined word"posses"probably means"B"in English．
A．lend
B．have
C．sell
60．In the writer's opinion，it'll be the best way to buy things withC in the future．
A．money
B．credit cards
C．thumbprints．

11．Today is June 1^st．It'sChildren's （child） Day．they are very happy．

10．Ask theteacher（老师） for it．

9．-How do you spell"ring"？
-___________．（　　）

8．-Thank you very much．
-_______________________．（　　）

7．Korea iswidely （广泛地） known for its delicious food．

To：Jenny@126．com From：Liming@yahoo．com．cn
Subject：Autumn!Date：29/09/8：00p．m．

Hello，Jenny!
Today is the Mid-Autumn Festival．We will watch the moon tonight，and look for Chang'e and Wu Gang．We usually eat mooncakes．They are round，like the moon．
National Day is also in autumn，on October 1^st．My mother and father are usually free for seven days!We will do many things together．I like going to the National Day celebration．
But the best thing in autumn is my birthday．It's in October．I will be fifteen years old．Goodbye．
Yours，
Li Ming

To：Liming@yahoo．com．cn From：Jenny@126．com
Subject：!Date：29/09/9：12p．m．

Dear Li Ming，
Thank you for your e-mail!I love autumn too．In Canada，we have an autumn holiday called Thanksgiving Day．Family members always celebrate it together．I will go to my grandmother and grandfather's house．My uncles，aunts and their children will be there too．
Canadian Thanksgiving Day is in early October．In America，Thanksgiving Day is in late November．
Have a good time on your birthday，Li Ming!On my birthday，I have a cake with candles．Everyone sings the song"Happy birthday"．Then I blow out the candles!Will you have a cake for your birthday？
Your friend，
Jenny
95．When is Li Ming's birthday？D
A．On September 29th
B．In September
C．Before September 29th
D．After September 29th
96．Americans celebrate Thanksgiving DayA．
A．in late November
B．in early November
C．in late October
D．in early October
97．-What do Canadians usually do on Thanksgiving Day？-They usuallyB．
A．eat cakes
B．stay together
C．watch the moon
D．sing a song
98．The subject（主题）of Jenny's e-mail is"C"．
A．Your birthday
B．My birthday
C．Thanksgiving Day
D．National Day
99．What must Li Ming and Jenny use when they write to each other？D
A．Pens   B．Paper   C．Telephones  D．Computers．

News Reports Star Evening Friday June 18，2005

1．A children's park in the train
Swiss Railway has created a children's corner in some trains．The young travelers can play on slides that look like dinosaurs，read books，listen to the music，or paint．The problem is that adults might worry about the safety of their kids．

2．Bush's family dog is put to sleep
President Bush's dog Spot has died．It lived with the family for 15years．It had given the Bushes great pleasure though it had many health troubles before its death．

3．Mending fences
African countries are building bridges and mending fences to set up the largest animal reserve in the world．This will help the wildlife to go freely across countries．

4．The writer
A famous writer named Stanley Willams writes children's books．His books are about warning children to stay away from drugs，guns，and bad people．Williams has won two literature prizes．But he is a four-time murderer on death row in California's prison．

48．According to the first piece of news，the children cannotA on the train．
A．play with dinosaurs
B．read books
C．listen to the music
D．paint pictures
49．From the third piece of news，we know thatD．
A．animals in Africa are free
B．each African country has a safari park．
C．bridges and fences are not needed in Africa
D．Africa will have the largest animal reserve in the world
50．Which of the following is NOT true？D
A．Stanley Williams is not only a writer but also a murderer．
B．African countries are building fences to stop wild animals going around．
C．The dog lived with the Bush family for fifteen years．
D．All the trains in Switzerland don't have children's parks．

0 117732 117740 117746 117750 117756 117758 117762 117768 117770 117776 117782 117786 117788 117792 117798 117800 117806 117810 117812 117816 117818 117822 117824 117826 117827 117828 117830 117831 117832 117834 117836 117840 117842 117846 117848 117852 117858 117860 117866 117870 117872 117876 117882 117888 117890 117896 117900 117902 117908 117912 117918 117926 159627