not only broaden your horizon but also can make you confiden

根据他的介绍,我们可以扩大我们的研究到几个我们过去一直忽略的领域.
broaden into = 扩大...到
a few areas = 几个领域

把字典用起来,现在高中生用的那本字典上面有,通过例句了解

B

考查状语从句的连词。While=though，句意：尽管旅游可以拓宽你的视野，但是我我并不认为把太多的钱和时间花在上面是一个好主意。

oaden扩大（视野）,变宽（道路）
widen拓宽（道路,范围）,拉大（差距）
这两几乎没差别
expand 扩展,扩大（是个个方向的）
extend延伸（是水平范围的）

In order to broaden my horizon and enhance my future prospects,I am determined to go to Australia to further my study.First of all,I would like to introduce you some information about my education backgroud and detailed preparation.I am planning to accomplish my secondary school education in Australia and then to continue my college education there.
I have learnt it from the Internet that Australia welcomes students from all over the world to complete their secondary and post secondary education there under its perfect study system.I believe that after a few years' study in Australia,my view will be broadened and my practical ability will be improved.And my culture background will be enriched by a mixture of chinese and western culture.I have been admitted by the XXX college,and have been placed into Grade 10 for the coming school year of next month.It(这里it指代什么?) has benefited the success and development of students from around the world for over 20 years.
My parents are more than willing to pay all the tuition fees and living expense for me,and they have financial ability to support my oversea study,so I don't have to worry about my financial support.

我们怎样开拓自己的眼界呢?

the dated ideas
eg.同时要克服阻碍农村文化建设的落后的、陈旧的思想观念,克服根深蒂固的小农意识和小生产文化心理结构,以为社会主义新农村建设和农村文化建设提供文化心理的支撑.
At the same time,we must overcome the （dated ideas ）of the countryside cultural construction and conquer the rooted small producers' consciousness and the mental structure of the small production in order to provide the cultural mental support for the new socialistic countryside construction and the cultural construction of countryside.

Knowledge may be acquired through many ways. One way of getting knowledge is from travelling Another way is by conversation, especially one with a great man. A person may also become knowledgeable through other ways such as listening to the radio or watching television. The best way to acquire knowledge, however, is through reading.Ruz英语作文网
Reading as a means of obtaining knowledge has a number of advantages over many other ways. To begin with, it is the most consistent way of getting knowledge. One can read regularly but few people can travel in the same way. Secondly, reading can ensure a thorough grasp of what you are interested in. This is hardly so when one is listening to the radio or watching TV. Finally, reading is the most flexible of all the ways to obtain knowledge. For example, one can always read for ten minutes before going to bed, but it is not always possible for him to converse with others at such a late hour.

People who like traveling have their reasons.They maintain that traveling can help them expand their scope of knowlege,especialy in the geographical and historial sense.They also think that touring willgive them more chances toenjoy different kinds of food and experience new things that would otherwise never have access to.But those who dislike traveling also have some reasons.
Traveling,in my opinion,does more good than harm.Most impotant,it broaden our mind.we can get in touch with other civilizations,cultures,customs economic methods and ideas.
Throught history,most travel was undertaken because of necessity--not for pleasure.People traveled to satisfy basic needs for survival.They searched for food and shelter or fled from enemies.Many people traveled in search of a better life.Perhaps they were searching for gold,silver,and other treasures that would make them rich. This is not to say that no one ever traveled just for the fun of it.In ancient times,for example,wealthy romans made excursions to Greece to take part in the Olympic Games,theatrical productions,and festivals.Of course,some people were motivated travel just out of curiosity.They wanted to find out what lay beyond the horizon or around the band in the road.Also travel for the purpose of conducting trade--in other words,business travel--has been going on for centuries.Traders could not only make money but also learn to speake several languages and be introduced to China's culture.
So,traveling is a matter both exciting and abundant.It do broden our mind,and draw new ideas to us guided by others'

主要是为了强调友谊的作用

开拓眼界.开拓视野broaden,expand one's horizons
打开眼界widen one’s horizon
巴黎的服装广告使他大开眼界.The advertisements of costume in Paris
broadened his outlook.
这真使我开眼界.What an eye-opener it’s been for me!
开眼界,拓宽视野.Widen one’s field of vision.
电视真使人大开眼界.Television is a real eye-opener.
旅游使他大开眼界.Travel has greatly broadened his horizons.
这让我大开眼界.This has really opened my eyes.

复数,作视野讲通常用复数,跟剪刀一样

开阔我们的思维

sharpen-sharp
strengthen-strength
liken-like
widen-wide
loosen-loose
enable-able
encourage-courage
enact-act
enchain-chain
encounter-counter
endanger-danger
还有很多很多.

they's改为thei

Approaching,Confidence,Conquest,Graduation,Broad,Impression,Seniority,Shifter,Surveyor,
Obscured,Access,Extension,Explorer,Interactional,opportunist,Restrict,Projector,Registered,
change
Application,behave,Avoidance,Bored,High,Ignorance,Negation,Cultural,Security,Tendency, Aspection,Participant,Hesitation,Inquire,Intendant,Recommendable,Investigation,Undertaker,
Resourceful,Economic