occurring gases是条件状语，相当于If there were not these naturally occurring gases，表示与________事实相反的假设。

【句意】如果没有这些自然产生的气体，太阳的光线将会反射回太空中去，地球将处于寒冷之中，不适合生存。

【仿写】如果没有充分的证据，他们就不可能证实他们的猜疑，这个男孩所说的话将很难被采信。

______________________， they can't confirm their suspicions， _______________________.

答案

1.【分析】gases

【仿写】reported by the media; has been slowing down; having a great influence on

2.【分析】现在；现在

【仿写】Without enough evidence; leaving what the boy said hard to believe

Unit 22 Lesson 3 & Communication Workshop

　　请和你的同学一起认真分析下列句子，并补全所缺内容。这种学习方式能逐步提高你理解长难句的能力。

1. People in agricultural areas, without any means to earn their living, move to the cities, and then construct shabby homes from whatever materials they can find on poor clay soil. (P10-P11)

【分析】本句是一个主从复合句。People是主语，move和construct是并列谓语动词；without any means to earn their living是介词短语作原因状语；whatever