學(xué)案：unit-4-natural-disasters-表達(dá)作文巧升格-【含解析】(完整版)
【正文】 of person who works hard and you39。ll receive more things to be thankful for!So how39。time parents nervously try to warn their children off touching dirt，which might be responsible for the spread of the contrary，Mary Ruebush，an American immunologist(免疫學(xué)家)，encourages children to play in the dirt to build up a strong immune the latter(后者) position is gaining some ground.______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________[參考范文]People have mixed opinions towards dirt on our skin.(要點(diǎn)1)For a long time in history，people of some European countries，such as France，believed that dirt protected people from getting ill.(要點(diǎn)2)However，people began to change their attitudes to dirt about 200 years have been told that washing dirt off our body can keep us healthy.(要點(diǎn)3)．Some scientists believe that exposure to some dirt may help our immune system，though.(要點(diǎn)4)。，避免重復(fù)使用you must/should...。s main purpose is to “make people happy”. So next time you a
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