20．Many of us were raised with the saying"Waste not，want not．"None of us，（76）hhowever，can completely avoid waste in our lives．
Any kind of waste is thoughtless．Whether we waste our potential talents，our own time，our limited natural（77）resources（資源），our money，or other people's time，each of us can become more aware and careful．The smallest good habits can make a big （78）ddifference．It's a good feeling to know in our hearts we are doing our（79）hbestin a world that is in serious trouble．By focusing on（80）saving（節(jié)�。﹐il，water，paper，food，and clothing，we are playing a part （81）in cutting down on waste．
We must keep reminding （82）ourselves（自己）that it is easier to get into something （83）than it is to get out of it．Actually，severe damage（84）ddoneto our land is fairly recent in the history of our evolution．It's time for us to（85）sayno to waste so that our grandchildren's children will be able to develop well．We can't solve all the problems of waste，but we can encourage mindfulness．
Waste not！

分析 本文是一篇議論文．很多人都知道"勤儉節(jié)約，吃穿不愁"然而幾乎沒有人能夠做到不浪費(fèi)．小習(xí)慣會(huì)產(chǎn)生很大的影響和作用，我們一定要注意自己微小的習(xí)慣，避免浪費(fèi)．通過聚焦節(jié)省石油、水、紙、等方面，我們在減少浪費(fèi)方面起了很大的作用．我們時(shí)刻要提醒自己形成浪費(fèi)的習(xí)慣要不戒掉這個(gè)習(xí)慣要容易得多．它對(duì)我們的環(huán)境造成了很大程度的破壞，該是我們對(duì)浪費(fèi)說不的時(shí)候了．

解答 76．however  考查副詞．根據(jù)句義可知上下文之間是轉(zhuǎn)折關(guān)系，所以使用副詞However表示轉(zhuǎn)折，前后都需要使用符合隔開．故填however．
77．resources  考查名詞．通常使用復(fù)數(shù)形式resources，表示具體的資源，在本句中作為動(dòng)詞waste的賓語．故填resources．
78．difference 考查名詞．固定搭配make adifference 起作用，有影響；根據(jù)句意可知，小習(xí)慣會(huì)產(chǎn)生很大的作用和影響，所以我們一定要注意自己的一些微小的習(xí)慣，以避免浪費(fèi)．故填difference．
79．best  考查固定搭配．doone's best 全力以赴，努力，盡最大的努力．故填best．
80．saving  考查動(dòng)名詞．動(dòng)詞短語focus on聚焦于…；其中的on是介詞，后面要接動(dòng)名詞或者名詞作賓語．句義：通過聚焦節(jié)省石油，水，紙等，我們在減少浪費(fèi)方面起著很大的作用．故填saving．
81．in    考察固定搭配．play a part in…在…中起作用；本句告訴我們，通過節(jié)約，我們可以在減少浪費(fèi)方面起很大作用．故填in．
82．ourselves   考查反身代詞．本句中的反身代詞ourselves在句中作為remind的賓語，起強(qiáng)調(diào)作用．我們一定要提醒我們自己形成浪費(fèi)的習(xí)慣要比戒除這個(gè)習(xí)慣更容易．故填ourselves．
83．than 考查連詞． 本句前面有形容詞比較級(jí)easier，說明應(yīng)該使用than與之對(duì)應(yīng)．我們一定要提醒我們自己形成浪費(fèi)的習(xí)慣要比戒除這個(gè)習(xí)慣更容易．故填than．
84．done  考查固定搭配 do damage to…破壞…；本句把名詞damage提前，后面的過去分詞短語done to ourland作為定語修飾名詞damage．故填done．
85．say   考查固定搭配say no to…對(duì)…說不…．；句義：是我們對(duì)浪費(fèi)說不的時(shí)候了．故填say．

點(diǎn)評(píng) 解答此類題目應(yīng)先瀏覽全文，概括大意，再根據(jù)句子間的提示以及括號(hào)內(nèi)的漢語提示或首字母提示，依據(jù)語法規(guī)則和行為邏輯來推測并填寫合適的詞語．

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