Unit 2 The environment單元復習學案
9.school children must be taught how to deal with dangerous________.
a.states b.conditions
c.situations d.positions
解析：選c。句意：學生必須接受如何應付危險情況的教育。state狀態，狀況，情況。condition(居住、工作或做事情的)環境，條件。
6.advise v. 勸告，建議
(回歸課本p38)...and advises people on the importance of protecting this great river.
...并且建議人們意識到保護這條大河的重要性。
歸納拓展
例句探源
①my teacher advised me to keep a diary.
老師建議我寫日記。
②i advise waiting till proper time.
我建議等到適當的時候。
③could you advise on how to improve my english?
你能就如何提高英語水平給我提些建議嗎？
④(朗文p31)they gave me some advice about buying a house.
他們給我提供了一些買房子的好建議。
10.完成句子
(1)建議乘客看管好自己的提包。
passengers are advised________ ________ ________ ________ ________unattended.
答案：not to leave their bags
(2)我勸你什么都不要給新聞界講。
i ________you________saying anything to the press.
答案：advise；against
(3)他就稅收問題為我們提供咨詢。
he advises us________tax matters.
答案：on
(4)你能不能給我點買車的建議？
can you________/________ ________ ________ ________about buying a car?
答案：give/offer me some advice
7.decrease vi.& n.
(回歸課本p35)this is one of the cheapest and most effective ways of decreasing desertification.
這是減少沙漠化最便宜也是最有效的方法之一。
歸納拓展
decrease to減少到
decrease by減少了
on the decrease在減少
例句探源
①(朗文p525)some illnesses cause a decrease in appetite.
有些疾病會使人食欲下降。
②(牛津p520)the price of wheat has decreased by 15%.
小麥價格降低了15%。
11.(XX年高考浙江卷)over the past decades，sea ice________in the arctic as a result of global warming.
a.had decreased b.decreased
c.has been decreasing d.is decreasing
解析：選c。句意：在過去的幾十年間，由于全球氣候變暖，北極的冰在不斷減少。“over/in/during/for the past＋時間段”作狀語時，主句的謂語動詞用現在完成時。
12. (XX年湖北省八校高三聯考) if their marketing plans succeed，they________their sales by 20 percent.
a.will increase b.have been increasing
c.have increased d.would be increasing
解析：選a。句意：如果他們的市場運作計劃成功，他們的銷售額將會提高20%。根據句意，if從句用一般現在時表將來，主句用將來時。
8.effort n. 努力；艱難的嘗試
(回歸課本p38)we believe that the efforts of the chinese government and the chinese people to protect this muchloved river will be appreciated for years to come by future generations.