人口population,

  为  做准备 prepare for,

 get ready for,

 too much + 不可数名词   太多的

too many + 可数名词复数

 太much too,

 太重much too heavy,

too heavy,

正在增长的人口 growing population,

 increasing population,

  五分之一  one fifth of,  

 五分之二two fifths of,

等一下 hang on a minute,

wait a minute,

wait a moment,

 It is clear that +句子   很清楚、很明显

  一个8岁大的女孩 an eight-year-old girl,

处于危险中 in danger,

危险的dangerous,

安全的 safe,

兴奋去做某事 be excited to do something,

  使、让某人做某事 make somebody do something,

  let somebody do something,

have somebody do something,

没有地方可住 have no place to live in,

寻找（过程）    look for,

找到（结果）find,

查清（通过研究找出结果）find out,

 惊奇的去做某事 be surprised to do something,

 有兴趣的去做某事 be interested to do something,

 兴奋的去做某事 be excited to do something,

 越来越少  不可数名词less and less,

越来越少  可数名词fewer and fewer,

越来越多  可数、不可数名词more and more,

定一个计划    make a plan,

 足够  去做某事 enough to do something,

返回 go back,

 return,

 such as,例如  没有逗号，后面一般加名词或者短语

for example一般有逗号，后面一般加句子

 不再   not,   any more,

 关闭；关停close down,

 解决问题 solve a problem,

中国人口大约是十三亿七千万。 The population of China is about One point three seven billion,

北京是一个拥有众多人口的大城市。 Beijing is a huge city with a big population,

 人口增长问题在许多国家都是一个大问题。 Population increase is a big problem in many countries,

 那样会造成很多问题，例如交通拥堵和噪声太多。 That causes a lot of problems, such as too much traffic and noise,

 我简直无法相信！ I can't believe!,

乘公共汽车去那里需要花一个小时。 It takes an hour to get there by bus,

显然，汤姆需要更多的学校。 It is clear that Tom needs more school,

中国的人口是多少？ What's the population of China?,

那几乎是世界人口的五分之一。 That's almost one fifth of the world's population,

等等！我要把这点也记下来！ Hang on a minute! I'll write that down too!,