Ice-climb in London

    The huge ice skating area at Somerset House has been drawing crowds each winter for years, but last November an ice wall was added for the first time, bringing even more danger and excitement. Standing more than 26 feet high is along line of pure ice, featuring three climbing faces of varying difficulty using crampons(防滑鞋)，ice picks. and ropes. Using it costs about ￡40 (020 7854600；www. somersethouseicednk. org. uk). It is open from late November to the end of January.

    Hang-gliding(悬挂式滑翔)in Rio De Janeiro

    According to the hang-gliders of Rio, once you ' ve swooped (俯冲)over the city's streets，gazing at the Sugar Loaf, and the city of Niteroion, the other side of Guanabara Bay, you will understand why birds are peaceful animals. Accept the romantic idea on a 30-minute cycling flight from the 525-meter Pedra Bonita in the Sao Conrado mountain down to the Sao Conrado beach. It costs around￡55.

    Contact Air Adventures (021 98439006；www. rio-hanggliding, com).

    Sky-walk in Sydney

    This experience takes having a look at a nice view to the whole other level, as you are suspended more than 850 feet (260m)above street level，controlled to a glass viewing platform of Sydney Tower. It's the city's highest building. After a thorough briefing and being fitted with protective sky suits , sky-walkers make their way along two-purpose-built walkways and platforms, which have transparent floor，while a guide points out landmarks. Night time sky-walks. are also available. It costs ￡46.

    Mountain-boarding in Leeds

    Riders roll down hills and fly off jumps, doing tricks. A number of special mountain-board parks have been opened around the country (see www. ridethehill. com). But the Leeds body of the Boarding Society practice at least twice a week in the city in locations that include Roundhay Park. Those with their own boards are welcomed to join them. Contact the society at www. scua. info. Alternatively, beginners can get lessons in Halifax at the Another World(014 22 245196; www mountainboarding.co.uk)mountain-board center for ￡8 an hour with equipment.

64. The purpose of the above ads is to ______.

    A. offer some ways to experience extreme sports

    B. help readers have different excitement during their holidays

    C. introduce the most exciting sports around the world

    D. introduce the latest sports in the world

65. Which of the following is open at night？

A. Ice-climb in London.                   B. Hang-gliding in Rio De Janeiro.

C. Sky-walk in Sydney.                   D. Mountain-boarding in Leeds.

66. What kind of feeling would you have if you went hang-gliding in Rio De Janeiro?

    A. Flying peacefully like a bird.              B. jumping quickly like a sportsman. .

    C. Flying over the city like a pilot.            D. Flying like a romantic actor.

67. You have never tried dangerous sport, then you can get on____ to find some training information.

    A. www. ridethehill. com                   B. www. riohanggliding. com

    C. www. scuz. info                        D. www. mountainboarding, co. uk

If you are afraid of the dark，it’s not a big deal．It’s perfectly normal to feel afraid After all，animals do too. “Fear matters，”says Karen Warkentin，an ecologist．“It’s a good thing，” she adds, “because fear makes you do things that keep you alive.”
Like kids，many animals experience fear and they respond to the feeling in variety of ways．A frightened turtle pulls its head and legs inside its shell．A  small fish will swim away when a big，hungry fish approaches．
Some animals respond to fear in ways you might not expect．The first example is that the fear of being eaten can scare some frogs right out of their eggs. Warkentin made the surprising discovery while studying red—eyed tree frogs in Costa Rica.
In this species，female frogs attach jellylike clumps（果冻一样的块状物）of their eggs to the undersides of leaves．The leaves hang on branches that dangle（悬挂）over ponds．After they hatch from the eggs，the tadpoles（蝌蚪）then fall into the water，where they eventually grow into adult frogs.
Tree frog eggs usually grow for 6 days before hatching．If they sense that a hungry snake is about to attack，however，they can hatch up to 2 days ahead of schedule. As the snakes are unable to swim，by falling into the water early，the tadpoles can escape.
If hatching early helps protect red—eyed tree frogs from snakes，you might wonder why their eggs don’t always hatch sooner．It turns out that hatching early brings its own danger．Once tadpoles land in the water，hungry fish and other animals like to eat them too．Staying in their eggs for a full 6 days，then，allows frog embryos（胚胎）to grow big and strong．This extra growth improves their chances of surviving in the water．
【小题1】It can be inferred from the passage that fears      .

If you are afraid of the dark，it’s not a big deal．It’s perfectly normal to feel afraid After all，animals do too. “Fear matters，”says Karen Warkentin，an ecologist．“It’s a good thing，” she adds, “because fear makes you do things that keep you alive.”

Like kids，many animals experience fear and they respond to the feeling in variety of ways．A frightened turtle pulls its head and legs inside its shell．A  small fish will swim away when a big，hungry fish approaches．

Some animals respond to fear in ways you might not expect．The first example is that the fear of being eaten can scare some frogs right out of their eggs. Warkentin made the surprising discovery while studying red—eyed tree frogs in Costa Rica.

In this species，female frogs attach jellylike clumps（果冻一样的块状物）of their eggs to the undersides of leaves．The leaves hang on branches that dangle（悬挂）over ponds．After they hatch from the eggs，the tadpoles（蝌蚪）then fall into the water，where they eventually grow into adult frogs.

Tree frog eggs usually grow for 6 days before hatching．If they sense that a hungry snake is about to attack，however，they can hatch up to 2 days ahead of schedule. As the snakes are unable to swim，by falling into the water early，the tadpoles can escape.

If hatching early helps protect red—eyed tree frogs from snakes，you might wonder why their eggs don’t always hatch sooner．It turns out that hatching early brings its own danger．Once tadpoles land in the water，hungry fish and other animals like to eat them too．Staying in their eggs for a full 6 days，then，allows frog embryos（胚胎）to grow big and strong．This extra growth improves their chances of surviving in the water．

1.It can be inferred from the passage that fears      .

A．help animals grow bigger and stronger

B．are less common among young animals

C．help animals move a lot to fit the environment

D．are more or less important in order for animals to survive

2.We are told in the passage that tree frogs        .

A．face danger both inside their eggs and in the water

B．will grow fast if they fall into the water later

C．are surprisingly clever when inside their eggs

D．stay in their eggs longer if they are frightened

3.Why do the tadpoles hatch up to 2 days ahead of the schedule？Because

A．They like falling into the water early

B．They want to grow into adult frog

C． They sense a hungry snake is about to attack

D．Frog embryos can grow strong

4.What is the best title of the passage ？

A．What is Fear                           B．Why do we feel afraid

C．You feel afraid，animals do too             D．Fear is a good thing

5.What do you think would be discussed in the following paragraph?

A．Further explanations as to why tree frogs hatch ahead of schedule．

B．How the unborn frogs know when a snake is about to attack them．

C．Another example of animals that responds to fear in an unexpected way．

D．How tree frogs improve their chances of survival before falling into the water.