19. It is very important to dream, so hold on to your dreams; one day they may just come true.

有梦想是非常重要的，因此要坚持你的梦想；有一天他们就有可能会变成现实．

Hold　on　此处为＂坚定＂的意思．

How long can they hold on?

You must　 hold on to your ideas.

语法知识

动词不定式　动词不定式可以充当除谓语之外的任外的任何句子成分。

18.on the other hand, students dream of very different things.另一方面，学生的许多梦想也有许多不同的情况；

on　the　other　hand　另一方面．　

On the other hand, it　 may not be bad for us to fail in the match.

17.and quite a few said they dream of going to the moon one day.有相当多的人说他们梦想着有一天能到月球上去．

Quite a few 意为　＂相当多的，颇多的＂后接可数名词复数．　Frank has quite a few friends there.

16.many students said they would like to be volunteers at the 2008 Olympics, maybe working as translators or tour guides.

许多学生说他们想要做2008年奥运会的自愿者，也许做翻译或导游工作．

Maybe　也许，可能　通常放在句首，也可以放在句尾，和单词＂may＂的汉语意思相同，但是用法不同．May　是情态动词，后接动词原形be．意为，也许是，可能是．

Maybe he is in the office.= he may be in the office.

Maybe they are visitors from America.= They may be visitors from America.

15.It seems some students would like to start work as soon as possible, so that they can help provide better lives for their parents.

一些学生好象想尽快的参加工作，以便他们能帮助父母过上更好的生活．

(1)Seem　似乎，好象　与形式主语连用时，后接that　从句，that　可以省略．

It seems that he is ill. 他好象病了．

其后可以接形容词做表语．

He seems happy today.他今天似乎很高兴．

其后也可以接动词不定式．

He seems to be very　angry．他似乎很生气．

(2)So　that　以便，为了

引导目的状语从句，从句中常用will，would，can，could，may，might　，be　able　to，want等词．

The boy did his homework hurriedly so that he wouldn’t like to miss the football match.

为了不错过这场球赛，那男孩匆匆地写完了作业．　

14.Here are some of the findings of a survey about hopes and dreams, in which thousands of students across china took part .

这里有一些全中国参与这项活动的数千万名学生的愿望和梦想的调查结果.

(1)　　 in which …一句为非限定性定语从句.in 与从句中的took part 构成短语 “参与,参加,”in 不能省略.

This is an old house, in which my grandparents lived for nearly 30 years.

这是一所老房子，我的祖父母在这里已住了将近30年了．

(2)thousands of 表模糊的数字，后接可数名词复数，此类用法还有hundreds of, millions of, billions of 等．

Thousand of years have passed.

3. Jack saw many students playing on the playground through the window.

2. The balloon is flying on and on through the clouds.

1. The deer is going through the forest.

3. Can you swim across the river ?

　“through”，意为“从中间穿过”。例如：