【文章內(nèi)容簡介】 =800 Y=50032頁 BC 2 未知數(shù)2 3 ?P33 10809=30分33頁 DBA 18 34頁 CDAB 60176。35第四題: +角EBC=90度,角EBC+角CBF=90度所以角ABE=角CBFAB=BC,角ABE=角CBF,BE=BF,三角形ABE全等三角形CBF =50度所以角EBG=90度50度=40度因?yàn)锽E垂直BF,BE=BF所以三角形BEF為等腰三角形即角BEG=45度所以三角形EGC=45度+50度=85度P3乙兩人每時各走x,y千米則由題知可列如下式子：(2+)x+=363x+(3+2)y=36 解得x=6,y= 4.(1)將紙打開，連結(jié)BO。根據(jù)題意，則DE垂直平分BO所以，DB=DO設(shè)OD=x,則DB=x，AD=8x因?yàn)镺ABC是矩形，所以4（平方）+（8X）（平方）=X（平方）X=5所以O(shè)D=5(2)菱形證：因?yàn)榻荄BO=角BOE又，DE垂直平分BO所以DB=OE=OD=5所以是菱形(3)設(shè)F（m,n)則m（平方）+n（平方）=4（平方）(5m)（平方）+n（平方）=3（平方）*（平方）就是那個小2 解得F（,)E()帶入方程y=ax+b0=5a+b=+b 解得a=三分之四b=三分之二十y=三分之四x三分之二十英語：P37happy1一what a melody(悅耳)song it is!what a fast boy he is!what a heavy girl she is!what a beautiful school it is!what a good boy he is!what a beatific(幸福)boy he is!二is cleanedwere takenis makenwas showedare invitenwasn39。t gavewas slolen。was found 三turtletigerjapanMexicotigersierra leone：betterbestmoremostbiggerbiggestmostexpensivemore smartmost smartmore badlymost badlyhavierheavisetolderoldestmore expensive better knownbest known lessleasmore carefullymost carefullyfewerfewestmore slowymostslowythinnerthinnestmorehealthymost healthymoreeasilymost easilyhotterhoyyestofteneroftenestfarerfarestlargerlargestP40一：plan to do計(jì)劃做某事He planned on taking hisvacation in to do希望做某事We hope to see you to do 同意做某事No results found foragree to to do 拒絕做某事She asked him for a loan,but he doing完成某事（后面就不打某事..到時記得自己加上哈）Have you finished readingthat magazine?enjoy dong 擅長....I enjoyed reading these books very doing 練習(xí)...I practise my doing建議..I suggest our going to the park on Sundayadmit ...I admitted breaking the doing否認(rèn)...He denied having seen these watches for 安排...I’ve arrangedfor a to do 提供They offered to help melike+doing喜歡..She likes playing thepianohate to do遺憾...He hated to have quarrelled with to do討厭He hated to havequarrelled with to do 記住去做某事Do you remember her telephone number?remember doing記得做過某事I remember telling youabout it to do忘記去做某事I forgot posting doing忘記做過某事Don39。t forget to post 動詞過去式bewascookcookedknowknewswimswangetgotteachtoughtleaveleftfellfeltsmellsmeltdrivedroverunranthinkthoughtkeepkeptbuyboughtbeginbegandodid過去分詞beencookedknownswamgot taught left felt smelt drivenrun thoughtkeptboughtbegandonecostcostcostfindfoundfoundthrowthrewthrowstandstoodstood動詞過去式speakspokeecamegivegavehearheardsendsenthurthurtseesawstealstoletaketooksleepsleptsitsatmeetmetbringbroughtflyflewwakewoke過去分詞spokenegivenheard sent hurtseen stolen taken slept satmet brought flownwakenchoosechosechosenloselostlostreadreadreadriseroserisenwearworewornP50Early to bedGet up early to exercise every dayTo eat less fatty food and more not eat too many sweet can the case of hot weather drink plenty not drink beverages,drink plenty the winter changes according to theright to add their own clothes to not cath a coldThe eyes will not watch TV much,so choosethe appropriate time watching games in not good for mental andphysical,we need to less play科學(xué)選擇題答案：專題一 增大 100% 降水P661.①水果導(dǎo)電性與它的酸性有關(guān)②水果導(dǎo)電性與它本身的質(zhì)量無關(guān) 躲入建筑物內(nèi)或就地蹲下專題二P55 壓力不變時，受力面積減小，壓強(qiáng)增大。BBCCBD受力面積 壓強(qiáng) 490 增大 水的密度不變時，越深，水內(nèi)部壓強(qiáng)越大P57 A 暖 40 高壓 冷鋒晴朗干燥 甲乙 A專題三二、B（1）A（2）A（3）平流，50%60%。（1）高壓系統(tǒng)，冷鋒系統(tǒng)，晴朗。（2）江蘇。專題四二、ABCD三、（1）難溶，乳濁。（2）會使魚類大量死亡，破壞生態(tài)平衡。專題五一、略。二、CBCCD 專題五CBCCDP62四、糖尿病飲食包括主食：如粳米、富強(qiáng)粉；含熱能低的食物如：青菜、白菜、黃瓜、冬瓜、番茄、豆腐、黃豆芽等；還有少量的瘦豬肉、雞蛋。糖尿病的病人禁食葡萄糖、蔗糖、麥芽糖等純糖食品專題六二、CCDB（1）非條件反射。（2）無效。（3）條件。專題七二、DDP661.①水果導(dǎo)電性與它的酸性有關(guān)②水果導(dǎo)電性與它本身的質(zhì)量無關(guān) 躲入建筑物內(nèi)或就地蹲下專題八一、略。二、結(jié)論一：蘋果的導(dǎo)電性與蘋果的的味道有關(guān)，且蘋果越甜，導(dǎo)電性能越強(qiáng)。結(jié)論二：蘋果的導(dǎo)電性與蘋果的質(zhì)量，體積無關(guān)。（1）乙。（2）避雷針。（3）先把身上的金屬物品拋開，然后躲進(jìn)大樓內(nèi)。歷社第一單元：2.(1)⑤④②①③(2)②①③⑤④ABEF CDG70頁AEFBCDG第二單元：錯錯對錯錯歷史73頁連線一 連②連1二連④連2三連①連4四連③連3第三單元： 錯對錯錯對錯錯對對錯②連3二連③連2三連①連1歷史 第二單元P73（2）尼羅河定期泛濫發(fā)達(dá)的農(nóng)業(yè)村落的形成手工業(yè)....尼羅河兩岸的小國....初步統(tǒng)一的古埃及國家地跨...127樓歷史P74：.（1）圖一，古埃及象形文字，金字塔，太陽歷（2）圖二，古印度佛教，數(shù)字符號（3）圖三：古巴比倫楔形文字，空中花園，幾何學(xué)，太陰歷悉達(dá)多佛教是三大佛教最早創(chuàng)立的，宣揚(yáng)“眾生平等”公元前后，傳入中國3.反映了當(dāng)時奴隸主擁有至高無上的權(quán)利歷史第四單元80頁錯錯對錯對錯對對對對孔子 玄奘李白岳飛 黃道婆畢升第5題：赤壁之戰(zhàn)是208年，三國是220280年，赤壁之戰(zhàn)是確立了三國鼎立的基礎(chǔ)；第8題：北宋，歷史P75 象形文字圖二 楔形文字圖三 甲骨文、自然現(xiàn)