一、根据首字母或所给汉语意思填单词。 1. the two sides had a fierce d____________ before they reached an agreement. 2. the________________(环境)pollution here is very serious, which the government should not take no notice of. 3. frankly speaking, i did it out of my ______________(愿意). 4.there are a variety of gases in the _________________(大气). 5. they were talking across the garden f__________. 6. too much work and too little rest often _______(导致) to illness.