【正文】 knew knownswim swan swam get got gotteach tought taughtleave left leftfell felt feltsmell smelt smeltdrive drove drivenrun ran runthink thought thoughtkeep kept keptbuy bought boughtbegin began begando did donecost cost cost find found foundthrow threw throwstand stood stood 動詞 過去式 過去分詞speak spoke spokene came egive gave givenhear heard heardsend sent senthurt hurt hurtsee saw seensteal stole stolentake took takensleep slept sleptsit sat satmeet met metbring brought broughtfly flew flownwake woke wakenchoose chose chosenlose lost lostread read readrise rose risenwear wore worn P50 Early to bedGet up early to exercise every dayTo eat less fatty food and more milk.Do not eat too many sweet can causeobesity.In the case of hot weather drink plenty ofwater.Can not drink beverages,drink plenty ofwater.In 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 TV.Playing games in not good for mental andphysical,we need to less play 科學(xué)選擇題答案：專題一1. ACBD 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) 2. 乙避雷針