以along with, together with, with, as well as, accompanied by, rather than, but, except, 连接的两个主语，其谓语的单复数以第一个主语为主。

几名乘客和司机受伤。Several passengers, together with the driver, were hurt,

表示时间，重量，长度，价格等的复数名词，作主语从整体来看时，谓语动词用单数。

五十年不算长。Fifty years is not a long time,

非谓语动词，从句或其他短语作主语，谓语动词用单数形式。

早睡早起有益健康。Early to bed and early to rise is healthful,

如果主语是由and,连接的两个单数名词，但前面有each, every, no, 等词修饰时，谓语用单数。

这个地区的每个男孩和女孩都被教读和写。Every boy and girl in this region is taught to read and write,

意义一致的原则指谓语动词的单复数取决于主语所表达的概念，而不取决于表面的语法标志，主要表现为某些集体名词后可跟动词单数或复数。如果这些集体名词指整体概念时，谓语动词用单数；指具体成员时用复数。

地球上的人口增长非常快。The population of the earth is increasing very fast,

集体名词： family, class, audience, committee, crowd, crew, group, party, population, team, public, council, village,等。

以either  or, or, neither nor,和not only,but also,连接的两个主语，其谓语的单复数形式应与离谓语最近的主语保持一致。

不是你就是他必须和我一起去。Either you or he has to go there with me,

由there,或here,引起的主语，而又不止是一个时，采取就近原则。

这里有一支笔，几个信封和一些纸给你。Here is a pen, a few envelopes and some paper for you,

巴西坚果Brazil nut,

睡莲water lily,

相应地，转而in turn,

使分解（为），使变化（成）break down,

给 带来起色，注入活力breathe life into,

由于，因为due to,

逐渐增加，扩大build up,

想岀,想到come up with,

需要;呼吁;要求;接（人）call for,

突然记起（或想到）spring to mind,

摆脱，丢弃，扔掉get rid of,

使发生（或存在）give rise to,

由于on account of,

战胜自然的胜利our human victories over nature,

报复takes one's revenge on,

一部纪实剧本a documentary script,

 电视节目打印单a TV show transcript,

  制作一个小册子make a booklet,

 环境问题environmental problems,

 人类the human race,

对  有害do harm to,

 削减;减少使用;砍倒（树木）cut down,

 发出警报sound the alarm,

 因为  而感谢be thankful for,

 合作work together,

 保护环境protect the environment,

充满  be full of,

 自然奇观natural wonders,

   的家园，的栖息地。home to,

 这个湖作为许多鸟类的栖息地而闻名。The lake is noted as a home to many birds,

 种类繁多的野生动物a wide range of wildlife,

 根据  判断judging from,

天然宝藏，自然宝藏a natural treasure,

 一望无际的绿色海洋a huge sea of green,

 在  中起重要作用play a significant role in,

 保持地球生态系统的良好平衡maintain the fine balance of the Earth's ecosystem,

 横穿八个国家cross into eight countries,

   的面积an area of,

 平方公里square kilometres,

   大小的一半half the size of,

 在长度上in length,

 扬子江，长江the Yangtze River,

 十分之一one in ten,

为  所熟悉be known to somebody,

 躺下lie down,

 种类繁多的野生动物an unbelievable variety of wildlife,

 在底部at the bottom,

 根系，根系统a system of roots,

 在地下beneath the ground,

 大量的树叶垃圾the mass of leaf litter,

 高耸的古代硬木the towering ancient hardwoods,

 大量的a significant number of,

 食物链food chain,

 以  为食feed on,

 至少at least,

 一小批  a tiny army of,

把  还给  return,  to,

 固定碳fix carbon,

 以  知名，被认为是， 称为be known as,

   的一个主要危险one major danger to,

 不可代替的动植物these irreplaceable plants and animals,

 养牛业cattle farming,

 处于灭绝的危险中，濒临灭绝in danger of extinction,

 留下一个问题be left with a question,

 有能力做某事afford to do something,

营养不良be poor in nutrients,

营养物;营养素 滋养的nutrient,

营养;滋养;营养的补给 营养(作用);滋养nutrition,

 一则，其一for one thing,

 雨季the rainy season,

 水平面，水平线the water level,

 离开，外出，消失go away,

 拿走，夺走；带走，抓走；从 中减去，从 中扣除;take away,

 再则，其次，另一方面for another thing,

 收留，收容；欺骗，使上当；理解，领会，领悟，看清，看明白；摄入，吸收；收入，进账take in,

 结果as a result,

 锁好，把 关入lock up,

 否定前缀negative prefixes,

 填写表格fill in the table,

 不知道have no idea,

 进行比较make comparisons,

 更好地理解gain a better understanding,

 三倍大three times as large as,

 失去了，丢了；失踪，迷路；流失be lost,

 省略；排除，不包括leave out,

 全球变暖global warming,

 主要问题a major problem,

 温室气体greenhouse gases,

 极端天气事件extreme weather events,

 问题的解决办法solutions to these problems,

 环境问题的首席专家leading experts on environmental issues,

 解决问题solve these problems,

 现代技术modern technology,

 生活方式的变革a change of lifestyle,

 开始get started,

 避免做某事avoid doing something,

 简短的应答in short responses,

 在  开始的时候at the beginning of,

 非正式演讲informal speech,

拍  的照片take photos of,

 尽一切努力，尽力，竭尽全力make every effort,

远离keep away from,

森林清理活动a forest clean-up activity,

参加，参与take part in,

致力于，献身于Be devoted to doing something,

最初，起初，开始时at first,

如果 怎么办what if,

在  的入口处at the entrance to,

阻止  stop,  from,

把  分成divide,  into,