【正文】 uter used as a centr al colect ion and distr ibut ion syst em and t ransit ion of dist ributed contr ol system in analogue handling, loop cont rol, has begun to r ef lect t he use of a huge advant age. Though dist ribut ed system has gr eat advant ages in loop r egulation, but only as a means of cont inuous process cont rol. Optimization of PLC is t he cor esponding r elay needs was bor n, it s m ain use in t he wor k or der contr ol, early pr imary is r eplaced r elay t his hulking system, f ocused on the switch contr oling t he r uning order of funct ions. M ar ked by the microprocessor in t he early 1970 of t he 20t h century emerged, m icroelectronics t echnol gy has developed r apidly, people soon microelect ronics pr ocessing t echnol gy wil be used in t he Pr ogrammable Logical Contr oler ( t hat is 讀一讀，體會(huì)作者當(dāng)時(shí)人樹相融的感受。 讀文感悟，體驗(yàn)情感 （ 1）默讀課文第 4— 7 自然段，用橫線劃出，訪問(wèn)了哪些朋友？ （ 2）再讀課文，找一找，從哪些描寫中可以看出“我”和山里的“朋友”有著深厚的感情？ （ 3）交流 感受，隨機(jī)教學(xué)。請(qǐng)同學(xué)們一起讀課文第 3 自然段。我們這學(xué)期學(xué)習(xí)的第一組課文 ,將帶領(lǐng)我們投入大自然的懷抱，領(lǐng)略大自然的風(fēng)姿，傾聽大自然的聲音，與大自然互訴心聲、交流感受。 M anipulator is now used as a indust rial r obot s in use, t he contr ol bj ectives of t en appear oft en in industr ial aut omation. I ndustr ial automation t echnol gy has gr adually m at ur ed, as mat ur e a t echnol gy line has been r apid developm ent in industr ial aut omation as a separ at e subject . M anipulat or application began t o f ilt er int o welding, logistics, mechanical pr ocessing, and ot her indust ries. Especially at high or ver y low t em per at ures, f ul of poisonous gases, high r adiation case, r obot in sim ilar cir cum st ances showed gr eat use also br ings gr eat convenience t o t he st af f. Pr ecisely because of t his r obot t o get people39。t opport unit ies awar eness in world r ange wit hin som e leading level of knowledge has has m ust awar eness, hope designers can in yihou of design in t he can sucess of using in t his design i t he pr oceeds of experience 1. 2 m anipulator in bot h at hom e and abroad of r esearch pr ofile aut om ation m echanical ar m r esearch began Yu 20t h cent ur y m ediumt erm, af t er years wit h wit h put er and aut omation t echnol gy of developm ent , M akes m echanical ar m on t he Gr and st age of industrial aut om at ion and shine, gradually became an industr ial evaluation st andar ds, and it s im por tance can be seen. Now original r obot ic arm spent m ost of m ass pr oduct ion and use on t he pr oduct ion li e, which is pr ogr ammed r obot ic arm. As t he f ir st gener ation of manipulat or posit ion contr ol syst ems m ain f eatur es, alt hough not back sever al gener ations t hat can detect t he external envir onm ent, but can stil successfuly plete like welding, painting, deliver y as well as for materials simple m ovements. Second generation mechanical ar ms ar e equipped wit h sensor s and manipulat or s have t he envir onment her e is a cert ain amount of sense, when t he m echanical ar m is t o use t he pr ogram as a basis. Dif fer ence is t hat t he r obot begand contiue ,1Cwlgf40z28yx%B9T:/kqL)181。M anipulator is now used as a indust rial r obot s in use, t he contr ol bj ectives of t en appear oft en in industr ial aut omation. I ndustr ial automation t echnol gy has gr adually m at ur ed, as mat ur e a t echnol gy line has been r apid developm ent in industr ial aut omation as a separ at e subject . M anipulat or application began t o f ilt er int o welding, logistics, mechanical pr ocesing, and ot her indust ries. Especially at high or ver y low t em per at ures, f ul of poisonous gases, high r adiation case, r obot in sim ilar cir cum st ances showed gr eat use also br ings gr eat convenience t o t he st af f. Pr ecisely because of t his r obot t o get people39。s at tent ion began t o be a high degree of developm ent. Labor ates, working condit ions, labor int ensive aspect s of pr om ot ing developm ent. Bot h at hom e and abroad t o develop t he PLC ( pr ogr amm able logic contr oler) is in various special cir cum st ances and under special condit ions et f or m echanical devices. Now t ur ned on t he developm ent of t he micr oelect r onics aut omatic contr ol t echnol gy and t he r apid development of t he t r ains, t he success of PLC har dwar e soft war e and simulation cont rol win big and sucessf ul developm ent, now continues t o develop as a f act or y aut omation standar ds. Because r obots are good evelopm ent of t he t echnol gy makes a good opt imization of pr oductive capit al, and r obot shows t his unique advantages, such as: has good patibilt y, wide availabilt y, har dwar e is plete, and pr ogr amming t hat can be mast er ed in a short tim e, so in t he cont ext of indust rial PLC applications becam e ubiquit ous. M anipulator in m any developed count ry agr icult ur e and industr y has been applied, such as t he use of m echanical harvesting lar ge ar eas of f arm land, r epeat ed oper at ions on t he highspeed line t hat uses a r obotic arm , and so n. Today, t he high level of aut omation bined wit h r estr ictions on t he m anipulator development level is slight ly lower t han t he int er national. The design is m ainly arm welding m achine by PLC Aut om ation contr ol. This of design let designers on i school by lear n of has a m ust of consolidat ion, underst and has some usually didn39。 4．掌握本課 8 個(gè)生字，理解新詞的意思，摘錄好詞好句。多姿多彩的大自然有聲有色，有情有意。 拜訪古橋，朗讀體驗(yàn) （ 1）下面，讓我們跟著作者，一起去拜訪他的第一位老朋友。 清爽 德高望重 吟誦 唱和 瀑布 陡峭 挺拔 身軀 津津樂(lè)道 精致 蘊(yùn)含 奧秘 別有深意 俠客 （ 2）引入：這節(jié)課，我們繼續(xù)跟隨作者，走進(jìn)山林去訪友。 ( 2) t he of ficial designer of t he sof t war e wr itng content cont rol is all about. Now in sever al ways in t he cont ext of indust rial aut om ation can of t en be seen in t hr ee ways: ( 1) Pr ogr amm able Logical Cont roler (r ef err ed t o as I PC)。這就是大自然的魅力。 （浙江省嵊州市剡山小學(xué) 陳潔敏） 2《山雨》教學(xué)設(shè)計(jì) 學(xué)習(xí)目標(biāo) 1．有感情地朗讀課文，背誦自己喜歡