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So, to summarise before we continue, we now have our key answer...
所以，在我們繼續(xù)之前，先總結(jié)一下，我們現(xiàn)在有了關(guān)鍵答案...
studying this subject is important because without geographical knowledge, we would know very little about our surroundings and we wouldn't be able to identify all the problems that relate to them.
學(xué)習(xí)這門(mén)學(xué)科很重要，因?yàn)槿绻麤](méi)有地理知識(shí)，我們對(duì)周?chē)h(huán)境的了解就會(huì)很少，我們就無(wú)法識(shí)別與之相關(guān)的所有問(wèn)題。
So, by definition, we wouldn't be in an informed position to work out how to solve any of them.
所以，根據(jù)定義，我們不可能知道如何解決這些問(wèn)題。
Okay, now for some practicalities. What do geographers actually do?
好了，現(xiàn)在來(lái)看一些實(shí)際問(wèn)題。地理學(xué)家實(shí)際上是做什么的？
Well, we collect data to begin with! You'll be doing a lot of that on your first field trip!
首先，我們要收集數(shù)據(jù)！在你的第一次實(shí)地考察中，你會(huì)做很多這樣的事情！
How do we do this? There are several means.
我們?cè)撛趺醋瞿兀坑泻脦追N方法。
We might, for example, conduct a census -- count a population in a given area perhaps.
例如，我們可能會(huì)進(jìn)行一次人口普查--對(duì)某一特定地區(qū)的人口進(jìn)行統(tǒng)計(jì)。
We also need images of the earth's surface which we can produce by means of computer-generation technology or with the help of satellite relays.
我們還需要地球表面的圖像，我們可以通過(guò)計(jì)算機(jī)生成技術(shù)或衛(wèi)星中繼的幫助來(lái)生成這些圖像。
We've come a very long way from the early exploration of the world by sailing ships when geographers only had pens and paper at their disposal.
從早期用帆船探索世界到現(xiàn)在，我們已經(jīng)走了很長(zhǎng)一段路，那時(shí)地理學(xué)家只能使用筆和紙。
After we've gathered our information, we must analyse it!
在我們收集了信息之后，我們必須分析它！
We need to look for patterns, most commonly those of causes and consequences.
我們需要尋找模式，最常見(jiàn)的是因果關(guān)系。
This kind of information helps us to predict and resolve problems that could affect the world we live in.
這類(lèi)信息幫助我們預(yù)測(cè)和解決可能影響我們生活的世界的問(wèn)題。
