原文：
There are now over 700 million motor vehicles in the world — and the number is rising by more than 40 million each year.
结构分析：
主句结构：
👉 There are + now + over 700 million motor vehicles + in the world
There are：存在句（there be 句型）
now：时间状语
over 700 million motor vehicles：主语补足语（真正主语）
in the world：地点状语
→ 句型： There be 句型（表示存在）
并列句结构：
第二部分用 and 连接：
👉 the number is rising by more than 40 million each year
the number：主语
is rising：谓语（现在进行时）
by more than 40 million each year：方式/程度状语
翻译：
现在世界上已有超过7亿辆机动车——而且这个数字每年还在以超过4000万辆的速度增长。
🅑 句2
原文：
The average distance driven by car users is growing too — from 8 km a day per person in western Europe in 1965 to 25 km a day in 1995.
结构分析：
主句：
👉 The average distance driven by car users is growing too
The average distance：主语
driven by car users：过去分词短语作定语（= the average distance which is driven by car users）
is growing：谓语（现在进行时）
too：副词，表示“也在增长”
介词短语 from ... to ... 表示变化范围：
👉 from 8 km a day per person in western Europe in 1965 to 25 km a day in 1995
翻译：
汽车使用者的平均行驶距离也在增长——从1965年西欧每人每天8公里上升到1995年的25公里。
🅒 句3
原文：
This dependence on motor vehicles has given rise to major problems, including environmental pollution, depletion of oil resources, traffic congestion and safety.
结构分析：
主句：
👉 This dependence on motor vehicles has given rise to major problems
This dependence on motor vehicles：主语（“对机动车的依赖”）
has given rise to：谓语动词短语（意为“引起，导致”）
major problems：宾语
补充说明（including...）：
👉 including environmental pollution, depletion of oil resources, traffic congestion and safety
including：介词（“包括”）
后面是列举的四个问题名词短语
翻译：
这种对机动车的依赖引发了重大问题，包括环境污染、石油资源枯竭、交通拥堵以及安全问题。
🧩 总结结构：
句序 主体结构 核心语法类型 关键词
① There are... 存在句 (There be) + 并列句 now, over 700 million, rising
② The average distance... 主系表句（be + growing）+ 定语从句化简 driven by..., from...to...
③ This dependence... 主谓宾句 + 介词补语（including...） has given rise to, including