PeriodThreeGrammar&WritingPartOneGrammarⅠ.用所给词的正确形式填空1．Scientistshavetriedmanywaysto_solve(solve)thisproblemandinChina，amasscampaignhasbeenstartedto_help(help)solveit.2．Thewindissometimesstrongenoughto_move(move)sanddunes.3．Thestormssometimescontinuealldayandtrafficmovesveryslowlybecausethethickdustmakesitdifficultto_see(see)．4．Weatherexpertsadvisepeoplenotto_go(go)out.5．Itisdifficultto_breathe(breathe)andthedustmakesmeill.Soifyouwantto_go(go)out，you’dbetterwearamask.6．To_prevent(prevent)itcomingnearer，thegovernmentisplantingtrees.Ⅱ.完成句子1．Heaskedto_be_senttoworkinthecountryside.他要求被派往农村工作。2．Seeinghisfatherwasasleep，he_tried_not_to_make_any_noise.看到父亲睡着了，他尽量不弄出任何声响来。3．Sheappearsto_be_much_youngerthanherage.她看起来比实际年龄年轻多了。4．Hearingthatshewasadmittedtoafamouscollege，shecan’t_help_jumping.当听到她被一所著名大学录取时，她情不自禁地跳了起来。5．Themeetingto_be_heldtomorrowisabouthowtocontrolthepollution.明天举行的会议是关于如何控制污染的。动词不定式和but＋不定式一、动词不定式的时态和语态形式语态时态主动被动一般式todotobedone进行式tobedoing完成式tohavedonetohavebeendone1.动词不定式的一般式：表示与主动词处于同一时间层面或动作发生于主动词之后。Heseems_to_understandwhatIsaid.他似乎明白我说的话。2．动词不定式的进行式：表示与主动词同时发生且动作正在进行。Thetwocheatspretended_to_be_workinghard.那两个骗子假装在努力工作。3．动词不定式的完成式：表示不定式动作发生于主动词之前。Sheseems_to_have_seenthisfilm.她似乎已看过这部影片。4．动词不定式的被动语态：表示与逻辑主语之间的被动关系。Sheaskedto_be_treatedequally.她要求被公平对待。[题组训练1](1)完成句子①Don’tpretend_to_know(假装懂)whatyoudon’tknow.②WhenIcamein，hehappened_to_be_reading(恰好在读书)．③Sheseemed_to_have_forgotten(似乎忘掉了)thewholething.④Thebikeneedsto_be_repaired(修理)．⑤I’msorryto_have_brought(带来)yousomuchtrouble.(2)高考变式①Groupactivitieswillbeorganizedafterclassto_help(help)childrendevelopteamspirit.(2014·重庆，11)②Heisthoughtto_have_acted(act)foolishly.Nowhehasnoonebuthimselftoblameforlosingthejob.(2014·江西，34)③Therearestillmanyproblemsto_be_solved(solve)beforewearereadyforalongstayontheMoon.(2014·北京，28)二、动词不定式的句法功能不定式的句法功能是作主语、表语、宾语、宾语补足语、主语补足语、定语、目的状语和结果状语。To_live_in_ChinaisMr.Smith’sdream.(主语)生活在中国是史密斯先生的梦想。Yourjobisto_wash_dishes.(表语)你的工作是刷盘子。Shepromisedto_givehimachance.(宾语)她答应给他一个机会。Theteachertoldhisstudentsto_pay_attention_totheirpronunciation.(宾语补足语)老师告诉学生们要注意发音。Iwasaskedto_helphimwithhislessons.(主语补足语)我被请求帮他学功课。Haveyougotapencilto_draw_pictures_with？(定语)你有绘图的铅笔吗？SomescientistswenttoGermanyto_attend_a_medical_conference.(目的状语)一些科学家去德国参加医学大会。Hewastooexcitedto_say_anything.(结果状语)他兴奋得说不出话来。[题组训练2](1)写出下列句子中不定式(短语)所作的成分①Toloveandtobelovedisthegreatesthappinessonecanseek.主语②Ican’taffordtobuythehouse.宾语③HisjobistoteachEnglish.表语④Ibelievehimtobehonest.宾补⑤Heworkedhardtopasstheexam.目的状语(2)高考变式①To_free(free)ourselvesfromthephysicalandmentaltensions，weeachneeddeepthoughtandinnerquietness.(2014·湖南，35)②To_work_out(work)thedifficultmathsproblem，IhaveconsultedProfessorRussellseveraltimes.(2014·陕西，20)...
