Unit 22 Warm-up & Lessons 1-2

　　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. They claim that in the last 50 years, gases pumped into the Earth's atmosphere by the factories and vehicles have been speeding up the process of global warming and affecting our climate. (P6)

【分析】本句是一个主从复合句。主句是They claim，that引导的从句作claim的宾语。在宾语从句中，主语是gases，have been speeding up与affecting（affecting前省略了have been）是并列谓语；pumped into ... vehicles是过去分词短语作定语，修饰________。

【句意】他们声称，在过去的五十年间，工厂和汽车排放入大气层中的气体一直在加速全球变暖的进程，影响着我们的气候。

【仿写】我们承认，最近被媒体报道的这件事一直在减缓现行制度的改革过程，对我们的决定产生了重大的影响。

We admitted that the fact ______________________ recently ______________________ the process of reforming the present system and ______________________ our decision.

2. Without these naturally occurring gases, the sun's rays would bounce back into space leaving the Earth cold and impossible to live on. (P6)

【分析】本句是一个简单句。句子的主干部分是：the sun's rays would bounce back into space；谓语用would bounce back ...表示假设的条件可能对________产生的影响。leaving the Earth cold and impossible to live on是"动词-ing形式+宾语+宾语补足语"作结果状语，leave意为"使......处于某种状态"。Without these naturally