B
 A new study has found no evidence that sunscreen, commonly used to reduce the risk of skin cancer, actually increases the risk.
 Research from the University of Iowa based their findings on a review of 18 earlier studies that looked at the association between sunscreen use and melanoma (黑素瘤). They said that they found flaws in studies that had reported associations between sunscreen use and higher risk of melanoma.
 Most health experts believe that by protecting the skin from the harmful effects of the sun, sunscreen helps prevent skin cancer, which is increasing in incidence (發(fā)生率) faster than any other cancer in the United States.
 But questions have been raised about sunscreen and whether it may have the opposite effect by allowing people to remain exposed to the sun longer without burning.
 The researchers said that among the problems with some earlier studies is that they often failed to take into account that those people most at risk for skin cancer---are more likely to use sunscreen. As a result, it may appear that sunscreen users get cancer more often.
 The studies, which generally relied on volunteers to recall their sunscreen use, were also unable to prove how well the products had been applied, said the new study.
60.The underlined word “flaws” in the 2nd paragraph most probably means _________.
A.evidences         B.facts         C.faults         D.failures
61.People with fair skin and freckles ________.
A.seldom use sunscreen               B.a(chǎn)re more in danger of skin cancer
C.can be free from the harm of the sun       D.often expose themselves to the sun
62.We can learn from the passage that _________.
A.sunscreen users get skin cancer more often
B.the volunteers have proved the effect of the sunscreen
C.the new study has based on the experiences of volunteers
D.the number of skin cancer patients is increasing in America
63.Which of the following is the best title of the passage?
A.Sunscreen to Prevent Skin Cancer       B.Sunscreen to Increase Skin Cancer
C.Skin Cancer Caused by Sunscreen       D.Skin Cancer Caused by Freckles


60--63   CBDA  

解析

練習冊系列答案
相關習題

科目:高中英語 來源:啟東中學作業(yè)本  高二英語(下) 題型:050

閱讀理解

  Taravura is as beautiful as it sounds. It is everything a Pacific city should be. You might have imagined a seafront lined with palm trees, sea-washed beaches as white as the waves, a busy port trading in all the products of the South Seas; you might have dreamed about houses made of dried grass standing among tall trees, brightly painted wooden churches, and open-air markets full of happy, friendly people, dressed as colorfully as the flowers and the fruits they sell. If you have ever thought that you might find all these things in one place, you were thinking of Taravura.

  Taravura is all things to all men. It is a capital city, with international hotels that will give you the warmest welcome you have ever received; with streets of buildings old and new, and of stores big and small; with shops full of bargains, and parks and gardens full of things to see and do. Government House and the President's Palace are there.

  The international airport has regular and direct flghts to and from cities all over South-East Asia, Australia and the South Pacific. Yet Taravura does not feel big: few of its buildings are higher than the trees; none of its streets is so full of traffic that it is difficult to cross, even at the busiest times of the day; and from all parts of the city you can see either Mount Bari and its brothers, the Endi Mountains, to the north, or the sky-blue sea to the south. Nowhere in Taravura are you very far from nature.

  But do not be deceived into thinking that because Taravura is small among capital cities, you will have done everything worth doing within a day. Taravura is a mine of golden opportunities. St. Cecilia's Cathedral, for example, contains many pieces of local art-work; and Komati Museum has a collection of paintings by South Pacific artists that is without equal in the world. For those who enjoy watching sports and games, you can be sure that somewhere in the city there is a national or an international team playing football, cricket or basketball; and for those who would rather play than watch, Taravura offers plenty of opportunities to try your hand at any sport.

  Until you have been to Taravura, you have not visited the city of your dreamstruly a heaven on earth.

1.“Taravura is all things to all men,” means ________.

[  ]

A.there is nothing that you will not find there

B.everyone will find something there to suit him

C.there are as many things to do as there are men

D.the men will do anything you wish them to do

2.Taravura “does not feel big” in spite of the fact that ________.

[  ]

A.it is a capital city with an airport and international hotels

B.its streets are full of traffic at all times of the day

C.few of its buildings are higher than the trees

D.its buildings are old and new, its stores big and small

3.Nowhere in Taravura are you very far from nature in that

[  ]

A.the open-air markets are full of flowers and fruit

B.the houses are made of grass and the churches of wood

C.there are mountains on one side and sea on the other

D.there are parks and gardens full of things to see and do

4.“Taravura is a mine of golden opportunities” means that

[  ]

A.St. Cecilia's Cathedral is a local piece of gold art-work

B.there are many things made of gold in the Cathedral and the museum

C.there are all sorts of things to do in the city

D.Taravura is a very wealthy city in many ways

查看答案和解析>>

科目:高中英語 來源:必修三全優(yōu)指導北師英語 北師版 題型:001

聽力(共兩節(jié),滿分30分)

第一節(jié)(共5小題;每小題1.5分,滿分7.5分)

聽下面5段對話。每段對話后有一個小題,從題后所給的A、B、C三個選項中選出最佳選項。聽完每段對話后,你都有10秒鐘的時間來回答有關小題和閱讀下一小題。每段對話僅讀一遍。

W:Did you all enjoy the film yesterday?

M:John was the only one who didn’t.

1.Who enjoyed the film yesterday?

A.John.

B.All except John.

C.Everyone, including John.

M:Aren’t you going to apologize for breaking that window?

W:Why should I?I didn’t throw the ball.

2.Who broke the window?

A.The boy.

B.The girl.

C.Someone else.

W:Have you moved into your new house yet?

M:Yes, already.

W:How do you like it?

M:It’s small but quiet.

3.What are they talking about?

A.A new house.

B.A new friend.

C.A new garden.

W:I’m returning the book you lent me.

M:That isn’t my book.

W:It’s not?That’s funny.It must belong to your brother then.

M:Should I give it to him?

W:Thanks.Here you are.

4.Who is the owner of the book?

A.The man himself.

B.The man’s brother.

C.The woman’s brother.

M:The study with all those bookshelves would be very useful.

W:And here is the kitchen with a large table and a fridge as well.

5.Where does the conversation most probably take place?

A.In a house.

B.In a park.

C.In a library.

第二節(jié)(共15小題;每小題1.5分,滿分22.5分)

聽下面5段對話或獨白。每段對話或獨白后有幾個小題,從題后所給的A、B、C三個選項中選出最佳選項。聽每段對話或獨白前,你有時間閱讀各個小題,每小題5秒鐘;聽完后,各小題給出5秒的作答時間。每段對話或獨白讀兩遍。

聽第6段材料,回答第6~8題。

W:Sir!Please take me to the airport as quickly as possible.

M:OK!I will drive as fast as I can.When is your flight?

W:9∶30.

M:Don’t worry.We will be there on time.

W:You see, it takes quite a long time to pass the customs.

M:I know.Is this the first time you are travelling by air?

W:Yes, and this is the first time for me to go abroad.

M:No wonder you look a little nervous.Are you going alone?

W:No, five other teachers will go together with me.

6.What’s the relationship between the two speakers?

A.Passenger and taxi driver.

B.Husband and wife.

C.Newly-made friends.

7.What time does the plane take off?

A.At 9∶13.

B.At 9∶30.

C.At 9∶20.

8.Why is the woman in such a hurry?

A.She is going to see five teachers off at the airport.

B.It’s almost time for her plane to take off.

C.It’s her first time to take a plane and she is a little nervous.

聽第7段材料,回答第9~10題。

W:Do you have a plan for your holidays?

M:Yes, I’ll go back to my hometown.

W:To see your grandparents?

M:Yes, and also to do some farming.

W:You mean you know how to farm?

M:Yes.I did that every summer during holidays.

W:I didn’t know that a city boy can do farm work.Can I go there with you?I’d like to learn to do some farming.

M:Sure, my grandparents would be very happy to see you.

W:Are you sure?

9.What are the speakers mainly talking about?

A.Farming.

B.Holiday plans.

C.Grandparents.

10.Where did the man grow up?

A.In the country.

B.At the seaside.

C.In the city.

聽第8段材料,回答第11~13題。

W:Why did you sell the car?

M:It was giving me too much trouble.I was spending so much money on it that I was…er…spending more money than it was worth.Unfortunately, of course, when you actually sell the car, you’ve already, spent the money on it, so you lose both ways.

W:What was wrong with your old car?

M:The engine needed a lot of repairs and the wheels were giving trouble now and then.When I set off on a journey, it gave me a sort of feeling that I might not get to the other end.So I decided to change it.

W:Is the new car good?

M:Yes.It’s newer, more comfortable, and it hasn’t given me any trouble at all.When I set off, I’m quite sure that I’ll be able to get to the other end safely.

11.What did the man do about his old car?

A.He sold it.

B.He repaired the engine.

C.He gave it to his friend as a present.

12.How did the man feel about his old car?

A.It would go far safely.

B.It was in pretty good condition.

C.He shouldn’t have spent money having it repaired.

13.How does the man feel about his new car?

A.We are not sure.

B.It’s even worse than the old one.

C.It’s much better than the old one.

聽第9段材料,回答14~16題。

M:Excuse me, Miss Smith, I cannot come to class tomorrow.

W:You missed two classes last week.You’ve missed a lot of lessons already.I think you should work a little harder to make up for them.

M:Yes, I will, Miss Smith.

W:Well, now, why can’t you attend my class tomorrow?

M:My grandfather is seriously ill and my family is going to visit him in the hospital tomorrow.

W:It seems to be an excuse.All right, you are excused.By the way, which hospital has your grandfather been in?

M:Which hospital? Er-er…h(huán)e is in St.George’s Hospital.

W:St.George’s Hospital? That’s interesting.It has been closed for repair for the past two months.Tony Banks, you’re trying to cut my class again.You’re coming to my class tomorrow and staying after class for extra work.

14.What can we learn about the boy?

A.His grandfather is seriously ill.

B.He is tired of learning.

C.He is a good student.

15.What makes that woman know the boy is lying?

A.The fact that the hospital has been closed for 2 months.

B.The fact that the boy has cut classes before.

C.She met the boy’s grandfather only minutes ago.

16.What does the teacher decide to do?

A.Give the boy permission to see his grandfather.

B.Punish the boy by having him stay for extra work after class.

C.Go to the hospital to see the boy’s grandfather

17.How might the boy feel in the end?

A.Happy.

B.Moved.

C.Disappointed.

聽第10段材料,回答第18~20題。

  It was about two o’clock in the morning, and…and suddenly I woke up, I heard a noise.I got out of bed and went slowly downstairs.There was a light in the living room.I listened very carefully.I could hear two men speaking quietly.

  “Burglars!” I thought.“Two of them!”Well, I was really frightened, so I went back upstairs, and immediately phoned they police from my bedroom.The police arrived quickly.They opened the front door with a special key and went into the living room.Then they came upstairs.“It’s all right now, sir, ”they explained.“We turned the television off for you!”

18.What did the speaker think had happened when he woke up?

A.The house was on fire.

B.Some guests had arrived.

C.The house was broken into.

19.Why didn’t the speaker get into the living room?

A.Because it was too dark there.

B.Because he was afraid.

C.Because the police were there.

20.What did the police find out?

A.The speaker had forgotten to turn off the TV before going to bed.

B.Two burglars (夜賊)were trying to steal valuable things.

C.Someone had opened the door with a special key.

查看答案和解析>>

科目:高中英語 來源:河北省邢臺一中2011-2012學年高二下學期第四次月考英語試題 題型:001

聽力(共兩節(jié),滿分30分)

第一節(jié) 聽下面5段對話。每段對話后有一個小題,從題中所給的A、B、C三個選項中選出最佳選項。聽完每段對話后,你都有10秒鐘的時間來回答有關小題和閱讀下一題。每段對話僅讀一遍。

1.What i s Jack' s occupation now?

A.A secretary.

B.A noveli st.

C.A new spaperman.

2.Where doe s thi s conver sation mo st likely take place?

A.In a lab.

B.In a clinic.

C.In a dining hall.

3.How old i s Jane?

A.19.

B.27.

C.35.

4.How often doe s the man go to vi sit hi s teacher?

A.At lea st once a year.

B.Once every two year s.

C.Twice a month.

5.How did the woman feel about the Engli sh program?

A.It' s intere sting.

B.It' s difficult.

C.It' s important.

第二節(jié)(共15小題:每小題15分,滿分22.5分)

請聽下面5段對話。每段對話后有幾個小題,從題中所給出的A、B、C三個選項種選出最佳選項。聽每段對話前,你將有時間閱讀各個小題,每小題5秒鐘;聽完后,各小題給出5秒鐘的作答時間。每段對話讀兩遍。

聽第6段材料,回答第6、7題.

6.How doe s the man seem to feel after thi s job interview?

A.Anxiou s.

B.Hopeful.

C.De sperate.

7.How many interviewee s were able to go to the second interview?

A.4.

B.12.

C.16.

聽第7段材料,回答第8、9題。

8.How much will the man pay?

A.15 yuan.

B.55 yuan.

C.50 yuan.

9.How long doe s the Cheaper way take?

A.At lea st two week s.

B.At lea st ten day s.

C.It' s lea st ten week s.

聽第8段材料,回答第10至12題。

10.Why doe s the man refu se the fir st flat?

A.It' s too smal1.

B.It' s too expen sive.

C.It' s not on the top floor.

11.Why doe s the woman let the man look at the second flat fir st?

A.He i s clean and quiet.

B.He i s kind and polite.

C.He i s poor and hone st.

12.How much will the man pay before moving in?

A.$100.

B.$50.

C.$30.

聽第9段材料,回答第13至16題。

13.What i s Tom doing?

A.Li stening to Engli sh song s.

B.Surfing the Internet.

C.Preparing for a te st.

14.How doe s the woman find studying Engli sh?

A.Intere sting.

B.Boring.

C.Difficult.

15.What doe s the woman sugge st the man do?

A.Play more game s online.

B.Talk with friend s online more often.

C.Learn We stern culture online.

16.What will the woman do next?

A.Go to school.

B.Take an exam.

C.Review le s son s.

聽第10段材料,回答第17至20題。

17.Who i s the speaker talking to?

A.People showing intere st in the theater.

B.People working in the building.

C.People vi siting the univer sity.

18.What i s the video showing today?

A.The teacher s of the univer sity.

B.The hi story of the theater.

C.The building s in the city.

19.How soon will people meet again?

A.In an hour and a half.

B.In half an hour.

C.In an hour.

20.What i s the purpo se of the speaker' s talk?

A.To tell people the rule s they should follow.

B.To give people a brief introduction.

C.To show people the direction.

查看答案和解析>>

科目:高中英語 來源:黑龍江省綏棱縣第一中學2012屆高三上學期11月月考英語試題 題型:050

閱讀下列短文,從每題所給的四個選項(A、B、C和D)中,選出最佳選項。

  What's in the news? Here are some articles from the Winfield Daily News.

  Engaged to be married

  Mr.a(chǎn)nd Mrs.Eduardo Silva of Bogota, Colombia, are happy to announce that engagement of their daughter Cristina Ana Silva to Gino Antonio Leone.Miss Silva is studying art history at Winfield Community College and Mr.Leone is working at the Roma Restaurant.The wedding will take place at St.Mark's Church in Winfield on October 5th.The reception(接待)will be at the Roma.

  Black History Month

  Winfield Public Library is please to announce a special program to celebrate Black History Month.The well-known actor Albert Eaton will perform a one-man show named MLK:His life and Times.In the show, Eaton recreates(重現(xiàn))the life and times of the late civil rights leader Martin Luther King, Jr., through music and drama.Performances are at 3∶30 and 7∶30, Thursday through Saturday.Admission free.Telephone:5365400.

  Benjamins have a daughter

  Mr.a(chǎn)nd Mrs.Leon Benjamin are proud to announce the birth of their first child, Andrea Jean.She was born at Winfield Hospital on June 9 at 11∶10 PM.

  SPORTS

  High School-Parents Beat Students

  The parents’ football team beat the students 4 to 2 in a wild and exciting match yesterday at Winfield Stadium.It was the first win for the parents since the yearly event started five years ago.Adela Logan led the parents to victory with three goals.Her son, Bob Logan, scored the only two goals for the losing team, it was both a happy and a sad day for the Logan family!

  College-Winfield Community College Senior Wins State Tournament

  Ginny Lewis took the title away from defending state tennis winner, Susan Murray, yesterday in three straight sets, 6-1, 6-3, 6-4.This was the first time a Winfield student has played in the state finals.Ginny brought home a trophy(獎杯)and a $1000 prize for her studies at college.

(1)

What is the Benjiamins' announcement about?

[  ]

A.

Their engagement.

B.

A new-born Baby.

C.

Black History Month.

D.

A newly married couple.

(2)

Who's going to perform at Winfield Public Library?

[  ]

A.

Albert Eaton

B.

Eduardo Silva

C.

Adela Logan

D.

Martin Luther King Jr.

(3)

What do we know about the high school football game?

[  ]

A.

It was held very five years.

B.

It had a parent team for the first time.

C.

The parents team won by 2 goals.

D.

The Logans were very happy after the game.

(4)

Why is Ginny Lewis in the newspaper?

[  ]

A.

She fought to the state final again.

B.

She lost one of the 3 sets in the game.

C.

She failed to get a college scholarship.

D.

She won a game against Susan Murray.

查看答案和解析>>

科目:高中英語 來源:廣西桂林中學2012屆高三11月月考英語試題 題型:050

閱讀理解

  What's in the news? Here are some articles from the Winfield Daily News.

  Engaged to be married

  Mr.a(chǎn)nd Mrs.Eduardo Silva of Bogota, Colombia, are happy to announce that engagement of their daughter Cristina Ana Silva to Gino Antonio Leone.Miss Silva is studying art history at Winfield Community College and Mr.Leone is working at the Roma Restaurant.The wedding will take place at St.Mark's Church in Winfield on October 5th.The reception(接待)will be at the Roma.

  Black History Month

  Winfield Public Library is please to announce a special program to celebrate Black History Month.The well-known actor Albert Eaton will perform a one-man show named MLKHis life and Times.In the show, Eaton recreates(重現(xiàn))the life and times of the late civil rights leader Martin Luther King, Jr., through music and drama.Performances are at 3∶30 and 7∶30, Thursday through Saturday.Admission free.Telephone:5365400.

  Benjamins have a daughter

  Mr.a(chǎn)nd Mrs.Leon Benjamin are proud to announce the birth of their first child, Andrea Jean.She was born at Winfield Hospital on June 9 at 11∶10 PM.

  SPORTS

  High School-Parents Beat Students

  The parents' football team beat the students 4 to 2 in a wild and exciting match yesterday at Winfield Stadium.It was the first win for the parents since the yearly event started five years ago.Adela Logan led the parents to victory with three goals.Her son, Bob Logan, scored the only two goals for the losing team, it was both a happy and a sad day for the Logan family!

  College-Winfield Community College Senior Wins State Tournament

  Ginny Lewis took the title away from defending state tennis winner, Susan Murray, yesterday in three straight sets, 6-1, 6-3, 6-4.This was the first time a Winfield student has played in the state finals.Ginny brought home a trophy(獎杯)and a $1000 prize for her studies at college.

(1)

What is the Benjiamins' announcement about?

[  ]

A.

Their engagement.

B.

A new-born Baby.

C.

Black History Month.

D.

A newly married couple.

(2)

Who's going to perform at Winfield Public Library?

[  ]

A.

Albert Eaton

B.

Eduardo Silva

C.

Adela Logan

D.

Martin Luther King Jr.

(3)

What do we know about the high school football game?

[  ]

A.

It was held very five years.

B.

It had a parent team for the first time.

C.

The parents team won by 2 goals.

D.

The Logans were very happy after the game.

(4)

Why is Ginny Lewis in the newspaper?

[  ]

A.

She fought to the state final again.

B.

She lost one of the 3 sets in the game.

C.

She failed to get a college scholarship.

D.

She won a game against Susan Murray.

查看答案和解析>>

同步練習冊答案