(1) This account of the wonderful land beyond the Rocky Mountains gave him the idea to move there.落矶山脉上这片美丽土地的描述，使他产生了移居到那儿的想法。
account n.描述 the account of the person
拓展： account n. 1>(c) 帐目 2>（关于事件、人物等的）报道，叙述，描写。3>(u)理由4>(u)好处；利益；利润 find one’s account in-在――中得到好处
vi.(与for连用)说出――的用途；是――的原因。
vt.(+宾＋宾补) We account him honest.我们认为他诚实。
（2）It was not easy to decide what to take and what to leave behind.
决定什么带走什么留下是不容易的。
leave behind（v.+ad.=vt.）不带走，忘了带，留下
Don’t leave me behind.带我一起走
拓展：leave alone别动，让独自呆着 Leave that mad dog alone.别去惹那条疯狗。
leave for 动身到（某处）He left (home) for the station a few minutes ago.几分钟前他（离开家）去车站了。（leave for后的地方是要去的地方，目的地；而leave后的地方是要离开的地方，出发地。）
leave off停止，中断，脱掉
leave out漏掉，忘掉，省略
（3）In the spring we continued our journey westward. 春天，我们继续向西旅行。
westward ad.向西 a.西方的 go in a westward direction 向西走 n.西方，西部 lie to the westward 位于西部
（4）The journey through the mountains and desert in the central part of the continent was the most trying part.通过大陆中央的山脉和沙漠的旅程是最艰难的。
trying a.难受的；难堪的；费劲的；恼人的
a trying situation尴尬的局面；难处的境况
（5）We took the road around the lake and after traveling a short time came to the Salt Lake Desert.我们走绕着湖的路，走了一会儿，来到了盐湖沙漠。
take 走，行走 take over a hill越过小山
（6）The animals dragged their legs, too weak to pull their burden, and their tongues hung out in desperate need of water.这些动物拖着他们的腿，太虚弱了而不能拉动负担，他们的舌头由于极度缺少水而在外搭了着。
hand out挂出； desperate极度渴望的
详解：desperate adj.1>令人绝望的，危急的 in a desperate state 在绝境中 2>（因绝望而）孤注一掷，拼死的 make a desperate effort 找命的努力 3>极度渴望的be desperate for――极度想要―― 4>极端的；（气候）险要的a desperate fool大傻瓜
（7）For many weeks we had been accustomed to seeing horses and oxen, suffering from heat, thirst, and starvation.许多个星期，我们习惯于看到马、牛受热、渴和饥饿之苦。
be accustomed to (+n.或V-ing形式)习惯于（比be used to 正式）。
I’m not accustomed to getting up so early.我不习惯于这么早起床。
get/become accustomed to (+n.或V-ing)习惯于――
You will soon get accustomed to the job.你将会很快习惯这个工作的。
suffer from(v.+prep.=vt.)受――之苦；患――
She often suffers from headaches.她常头痛。
suffer from floods遭受洪水
（8）A young man in our group suggested that I stay behind with the children, and wait for help.我们队伍中的一个年青人建议我和后面的孩子们呆在一起，等待帮助。
suggest建议,后面的从句谓语动词用should+动词原形，其中should可以省略。
I suggest that we (should) get up early tomorrow.
拓展：suggest doing He suggested working hard.
advise 建议
+that 从句，从句中谓语动词用(should)+动词原形
advise doing
advise sb. to do sth.
suggest后面不能接不定式。
(9)When we saw the valley with fat cattle and horses, we thought we had reached the promised land.当我们看到牛肥马壮的山谷时，我们知道我们到了一个有指望的土地。
promise有希望，有――可能. This year promises a good harvest.今年有丰收的希望。
promised过去分词作定语，有希望的。
(10)Our days of hardship had come to an end.我们苦难的日子结束了。
come to an end告终，结束 This play comes to an end.
拓展：bring to an end 使结束
in the end最后，终于
make and end of 把――结束
end (up) with以――告终
Language study P50 Exercise 2.
Keys:1> burden 2>pond 3>starvation 4>desperate 5>anxiety 6>come to an end.
Exercise 3
Keys:1>had come to an end
2>came to an agreement
3>came to a conclusion
4>coming to a complete stop
5>came to a decision
6>came to a better understanding