In order to know a foreign language thoroughly,four things are neccessary.Firstly,we must understand the language when we hear ______31________ spoken..Secondly,we must be able to speak it correctly with confidence and without hesitation._____32_______,we must be able to read the language,and fourthly,we must be able to write it.We must be able to make sentences that are grammatically correct.
There is no easy way to success _____33_______ language learning._____34________ good memory is of great help,but it is not enough only _____35________(memorize)rules from a grammar book.It is not much use learning by heart long list of words and ______36_________meaning,studying the dictionary and so on.We must learn by using the language._______37_______we are satisfied with only a few rules we have memorized,we are not really learning the languang.“Learn through use”is a good piece of _____38______(advise)for those ______39______are studying a new language.Practice is important.We must practise speaking and ____40____(write)the language whenever we can.
31.it 32.Thirdly 33.in 34.A 35.to memorize
36.their 37.If 38.advice 39.who 40.writing
At one point along an open highway,I came to a crossroads with a traffic light.I was alone on the road by now,but 31 I drove up to the light,it turned red,and I braked to a halt.I look left,right,and behind me.Nothing.32 a car,no suggestion of headlights,but there I sat,33(wait)the light to change,the only human being for at least a mile in any direction.
I started wondering 34 I refused to run the light.I was not afraid of 35(catch)by the police,because there was obviously no cop anywhere around and 36 certainly would have been no danger in going 37 it.Much later that night,the 38 question of why I’d stopped for that light came 39 to me.I think I stopped because it’s part of a contract(合同)we all have with each other.It’s not only the law,but it’s an agreement we have,and we trust each other to honor 40:we don’t go through red lights.Like most of us,I’m more ready to be stopped from doing something bad by the social agreement that disapproves of it than by any law against it.
31.as/when 32.Not 33.waiting 34.why 35.being caught
36.there 37.through 38.same 39.back 40.it
Nowadays,millions 31 lonely singles are now going online instead.32 World Wide Web is quickly becoming the world’s most popular matchmaker(媒人).
Singles are flocking(涌向)to the Internet 33(main)because their busy lifestyles leave them little time to look for a significant other.Using dating sites(约会网址)is quick and convenient.Many singles say the regular dating scene 34(just lead)them from one bad experience to 35 and are ready to try something else.Dating sites also make 36 easy to avoid someone 37 you are not interested in.In the real world,38,ignoring someone you don’t like can be difficult.
Despite all the advantages,online dating also presents its own set of problems.People aren’t always those who they declare to be in their online 39(describe).Safety is another concern.You are just 40(like)to find a criminal online as you are Mr.Or Miss Right.
31.of 32.The 33.mainly 34.has just led 35.another 36.it
37.who/whom 38.however 39.description 40.likely
Polar bears are suffering in a 31(warm)world than ever before.
Polar bears live in environments too cold for most animals.32 much of the year,they live and hunt on the frozen Arctic sea ice.Nature has prepared 33 for the cold conditions.But nothing has prepared the bears for the danger that 34(threat)the only home they know.
The polar bears’world is melting.Studies show that the polar ice has reduced by 9.8%every 10 years 35 1978.Now about 20,000 to 25,000 polar bears live in the Arctic.Polar bears depend on the sea ice for their 36(survive).“The sea ice is more than just this platform that the bears walk over,”says Andrew Derocher,37 scientist who studies North American polar bear populations.“38 it,they can’t exist.”
Some melting and refreezing of the polar ice is natural.39 in a warmer world,these cycles speed up,and bears have less time to hunt.Normally,they have three months in the spring when they gain more weight.The extra fat is used later,40 the bears are not actively hunting.