【正文】
after 15. into III. 16. do harm to 17. instead of 18. make a difference to 19. as well as possible 20. find out IV. 21. Though / Although。 1. 雖然我們年紀(jì)小,我們?nèi)匀荒転楸Wo(hù)環(huán)境做一些事情 _______ we are young, we can still ________ _________ to protect the environ ment. 2. 懷特一家在扔垃圾之前總是要將它們分類。 The Whites always sort the waste before _________ _________ _________. 3. 在你買新東西之前,想一想是否真的有必要。 In order to save resources, we should look after our things ______ ______ they can last a long time. 5. 用陶瓷杯比用紙杯好,因?yàn)樗梢灾貜?fù)使用。 1. Even the simplest everyday activities can _________(減少 ) pollu