摘要: D prevent表示阻止,care表示介意,defend表示保护.防卫,protect表示使不受侵犯.保护.也可指防御风雨.寒冷.疾病等.我们有时带墨镜是为了保护眼睛不受太阳光的侵害.

网址:http://m.1010jiajiao.com/timu3_id_3134679[举报]

阅读下列短文,然后从各题所给的四个选项(A、B、C和D)中,选出最佳选项。

  Why do men die earlier than women?The latest research makes it known that the reason could be that men's hearts go into rapid decline when they reach middle age.

  The largest study of the effects of ageing on the heart has found that women's longevity may he linked to the fact that their hearts do not lose their pumping power with age.

  “We have found that the power of the male heart falls by 20~25 percent between 18 and 70 years of age,”said the head of the study,David Goldspink of Liverpool John Moores University in the UK.

  “Within the heart there are millions of cells that enable it to beat.Between the age of 20 and 70,one-third of those cells die and are not replaced in men,”said Goldspink.“This is part of the ageing process.”

  What surprises scientists is that the female heart sees very little loss of these cells.A healthy 70-year-old woman's heart could perform almost as well as a 20-year-old one's.

  “This gender difference might just explain why women live longer than men,”said Goldspink.

  They studied more than 250 healthy men and women between the ages of 18 and 80,focusing on healthy persons to remove the confusing influence of disease.

  The team has yet to find why ageing takes a greater loss on the male heart,said Goldspink.

  The good news is that men can improve the health of their heart with regular exercise.Goldspink stressed that women also need regular exercise to prevent their leg muscles becoming smaller and weaker as they age.

(1)

The underlined word “longevity”in the second paragraph probably refers to ________

[  ]

A.

health

B.

long life

C.

ageing

D.

effect

(2)

The text mainly talks about ________

[  ]

A.

men's heart cells

B.

women's ageing process

C.

the gender difference

D.

hearts and long life

(3)

According to the text,the UK scientists have known that ________

[  ]

A.

women have more cells than men when they are born

B.

women can replace the cells that enable the heart to beat

C.

the female heart loses few of the cells with age

D.

women never lose their pumping power with age

(4)

If you want to live longer,you should ________

[  ]

A.

enable your heart to beat much faster

B.

find out the reason for ageing

C.

exercise regularly to keep your heart healthy

D.

prevent your cells from being lost

(5)

We can know from the passage that ________

[  ]

A.

the reason why ageing takes a greater loss on the male heart has been found out

B.

scientists are on the way to finding out why the male heart loses more of the cells

C.

the team has done something to prevent the male from suffering the greater loss

D.

women over 70 could lose more heart cells than those at the age of 20

查看习题详情和答案>>

 

WELCOME

Welcome to Windsor Castle, the oldest and largest occupied castle in the world. Windsor is one of the official residences(住所) of the Queen, who sometimes stays here.

 

Audio tours

Free audio tours are available on leaving the Admission Centre at the start of your visit. There is a descriptive audio tour for blind and poor-sighted visitors.

Guided tours

Visitors can explore the history of the Castle through a tour of the Precincts with an expert guide. Tours depart(出发,起程)at regular intervals(每隔一定时间/距离)throughout the day from the Courtyard and finish at the entrance to the State Apartments.

Visitors with children

For those visiting with children, a special family tour and various activities are offered during school holidays and at weekends. Please note that, for safety reasons, pushchairs are not permitted in the State Apartments. However, baby carriers are available to borrow.

St George's Chapel

Visitors arriving at the Castle after 15:00 from march to October are advised to visit St George's Chapel first, before it closes.

Shopping

Shops offer a wide range of souvenirs designed for the Royal Collection, including books, postcards, china, jewellery, and children's toys. Please ask at the Middle Ward shop about our home delivery service(送货服务).

Refreshments

Bottled water can be purchased from the Courtyard and Middle Ward shops. From April to September ice cream is also available. Visitors wishing to leave the Castle for refreshments in the town may obtain re-entry permits from the castle shops. Eating and drinking are not permitted in the State Apartments or St George's Chapel.

Photography and mobile phones

Non-commercial photography and filming are welcomed in the Castle. Photography, video recording and filming are not permitted inside the State Apartments or St George's Chapel. Mobile phones must be switched off inside the State Apartments and St George's Chapel in consideration of other visitors.

Security

As Winter Castle is a working royal palace, visitors and their belongings should get through airport-style security checks. For safety and security reasons a one-way system operates along the visitor route.[来源:]

 

1.A visitor can apply for a free audio tour ___________.

A. in the Courtyard              B. in the State Apartments

C. at the Admission Center        D. at St George's Chapel

2.What is specially offered to visitors with kids?

A. A security guard    B. A pushchair    C. A free toy      D. A baby carrier

3.Who can get re-entry permits?

 A. Visitors wishing to eat outside the Castle

 B. Visitors buying gifts in the castle shops

 C. Visitors buying water from the Courtyard

 D. Visitors eating outside St George's Chapel

4.Why are visitors required to turn off their mobile phones?

 A. To ensure the safety of others

 B. To ensure the security of the Castle

 C. To prevent them from disturbing others

 D. To prevent the use of the built-in cameras

5.In the last part, a "working royal palace" refers to one_____.

 A. still being constructed            B. still used by the royal family

 C. where the Queen usually works     D. where works of art are on show

 

查看习题详情和答案>>

完形填空

  Everyone will laugh at you if you don't know about Pele, the most famous football player in Brazil. Because of his great devotion to the 1 of football, he is always 2 as the “King” by football fans worldwide.

  Pele 3 his genius for football in his 4 . When he was thirteen, 5 perfect skills he 6 Santos, a very important football 7 in Brazil.

  In 1958, Pele was 8 to play for Brazil in the Sixth World Cup Competition. 9 he was sixteen, he was the best player 10 the field. 11 to Pele, Brazil 12 the world championship for the first 13 .

  Pele played for Brazil in the World Cup Competitions from 1958 to 1970.

  In one famous match, the fans were 14 the exciting 15 when Pele would score his thousandth goal when the refree(裁判) gave Santons a penalty(点球) 16 . Pele walked up to 17 it. The opposing goalkeeper had no 18 with the hard and accurate 19 . Pele had scored his thousandth goal! The crowds cheered, “Pele, Pele…” That is a record which is as valuable in sports as a thousand goals.

  Pele was always 20 to the spirit of the sport as a professional player. He always played a fair game and behaved modestly with a cheerful smile.

  He is held in high respect, and now he is the Minister of Physical Education in Brazil.

1.

[  ]

A.reason
B.cause
C.event
D.affair

2.

[  ]

A.honored
B.thought
C.looked
D.said

3.

[  ]

A.gave
B.expressed
C.showed
D.asked

4.

[  ]

A.home
B.school
C.family
D.childhood

5.

[  ]

A.in
B.for
C.to
D.with

6.

[  ]

A.became
B.joined
C.turned
D.changed

7.

[  ]

A.factory
B.club
C.cinema
D.ground

8.

[  ]

A.waiting
B.eager
C.anxious
D.chosen

9.

[  ]

A.But
B.Therefore
C.So
D.Although

10.

[  ]

A.in
B.on
C.by
D.for

11.

[  ]

A.Thanks
B.Reported
C.Helping
D.Getting

12.

[  ]

A.defeated
B.beat
C.struck
D.won

13.

[  ]

A.day
B.time
C.present
D.place

14.

[  ]

A.asking
B.awaiting
C.paying
D.looking

15.

[  ]

A.man
B.player
C.moment
D.gift

16.

[  ]

A.throw
B.pull
C.draw
D.kick

17.

[  ]

A.take
B.pick
C.throw
D.prevent

18.

[  ]

A.chance
B.time
C.promise
D.idea

19.

[  ]

A.shot
B.aim
C.plan
D.thought

20.

[  ]

A.likely
B.faithful
C.great
D.respective
查看习题详情和答案>>

Speeding off in a stolen car, the thief thinks he has got a great catch. But he is in for an unwelcome surprise. The car is fitted with a remote immobiliser (锁止器), and a radio signal from a control centre miles away will ensure that once the thief switches the engine off, he will not be able to start it again.

The idea goes like this. A control box fitted to the car contains a mini-cellphone, a micro- processor and memory, and a GPS (全球定位系统) satellite positioning receiver. If the car is stolen, a coded cellphone signal will tell the control centre to block the vehicle's engine management system and prevent the engine being restarted.

In the UK, a set of technical fixes is already making life harder for car thieves. 'The pattern of vehicle crime has changed,’ says Martyn Randall, a security expert. He says it would only take him a few minutes to teach a person how to steal a car, using a bare minimum of tools. But only if the car is more than 10 years old.

Modern cars are far tougher to steal, as their engine management computer won't allow them to start unless they receive a unique ID code beamed out by the ignition (点火) key. In the UK, technologies like this have helped achieve a 31% drop in vehicle-related crime since 1997.

But determined criminals are still managing to find other ways to steal cars, often by getting hold of the owner's keys. And key theft is responsible for 40% of the thefts of vehicles fitted with a tracking system.

If the car travels 100 metres without the driver confirming their ID, the system will send a signal to an operations centre that it has been stolen. The hundred metres minimum avoids false alarms due to inaccuracies in the GPS signal.

Staff at the centre will then contact the owner to confirm that the car really is missing, and keep police informed of the vehicle's movements via the car's GPS unit.

66. What's the function of the remote immobilizer fitted to a car?

A .To allow the car to lock automatically when stolen.

B. To prevent the car thief from restarting it once it stops.

C. To help the police make a surprise attack on the car thief.

D. To prevent car theft by sending a radio signal to the car owner.

67. By saying 'The pattern of vehicle crime has changed' (Lines 1-2. Para. 3). Martyn Randall suggests that ____.

A. self-prepared tools are no longer enough for car theft

B. the thief has to make use of computer technology

C. it takes a longer time for the car thief to do the stealing

D. the thief has lost interest in stealing cars over 10 years old

68. What is essential in making a modern car tougher to steal?

A. A GPS satellite positioning receiver.       B. A unique ID card.   

C. A special cellphone signal.                D. A coded ignition key.

69. Why does the tracking system set a 100-metre minimum before sending an alarm to the operations centre?

A. To give the driver time to contact the operations centre.

B. To allow for possible errors in the GPS system.

C. To keep police informed of the car's movements.

D. To leave time for the operations centre to give an alarm.

70. What will the operations centre do first after receiving an alarm?

A. Start the tracking system.         B. Locate the missing car.

C. Contact the car owner.          D. Block the car engine

 

查看习题详情和答案>>


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

查看习题详情和答案>>

违法和不良信息举报电话:027-86699610 举报邮箱:58377363@163.com

精英家教网