Unit 11 Lets Protect The Environment 预习导学预习本单元要求大家掌握的词汇、短语及句型：单词（课文中要求大家掌握的四会词汇） possible, pollute, garbage, prevent, litter, reason, surface, river, suggest, safe, at least, face, natural, factory, cause, abroad, realize, land, stream, supply, careless, rubbish, produce, level, greatly, surprising, climate, cap, disturb, importance短语：（根据课文中上下文的意思，将下列短语翻译成中文）1) global warming2) destroy the land3) throw into streams4) be littered with5) pour into6) more and more7) prevent heat from escaping8) a certain amount of heat 9) go into outer space10) so that11) the surface temperature of the earth12) have many side effects13) plant more trees14) take in15) be used as16) as little as possible17) make use of solar energy18) wind power19) some new sources of energy20) start environmental groups21) the importance of protecting the earth根据自己的词汇知识,对下列各词进行扩展：global _ (名词形式 )certain _ (副词形式 )face _(形容词形式)power _(形容词形式)environmental _（名词形式）important _ (名词形式)- 2 -用心 爱心 专心