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, but I know none of , 但一個(gè)我也不認(rèn)識(shí)。 5. Scientists think that there has been life on the earth for hundreds of millions of years. 科學(xué)家們認(rèn)為數(shù)億年以前地球上已有生命存在了。第 13講 八年級(jí)下冊(cè) Modules 3~4 1. reach (v.)get/arrive(近義詞 )到達(dá) 2. discover (v.)discovery(n.)發(fā)現(xiàn) 3. impossible (adj.)possible(反義詞 )可能的 4. municate (v.)munication(n.)交流 5. ill (adj.)illness(n.)疾病 worse(比較級(jí) )worst(最高級(jí) ) 6. take (v.)took(過(guò)去式 )taken(過(guò)去分詞 ) 7. health (n.)healthy(adj.)健康的 healthily(adv.)健康地 8. active (adj.)activity(n.)活動(dòng) 9. weak (adj.)weakness(n.)虛弱 1. be up to 忙于;從事;正在做 2. in order to 為了 ?? 3. search for 搜索;搜查 4. more than 多于 5. finish doing sth. 做完某事 6. catch a cold 感冒 7. take one39。 6. How long have you been like this? 你這樣多久了? 7. Since then, it has been part of my life. 從那時(shí)起 , 它就成了我生活的一部分。 【 拓展精析 】 none是代詞 “ 沒(méi)有一人;沒(méi)有一個(gè);什么也沒(méi)有 ” 。t want to be ill, you have to eat 果你不想生病 , 你得健康地吃東西。 【 拓展精析 】 exercise作不可數(shù)名詞時(shí)意為 “ 鍛煉 (運(yùn)動(dòng) )” , 作可數(shù)名詞時(shí)意為 “ 練習(xí);體操 ” ;作動(dòng)詞時(shí)意為 “ 運(yùn)動(dòng);鍛煉 ” 。 The film has been on for an 。 it is+時(shí)間段+ since+從句 (一般過(guò)去時(shí) ), 意為 “ 自從?? 到現(xiàn)在已有多長(zhǎng)時(shí)間了 ” 。 【 活學(xué)活用 】 (1)—Where is Mr. Wang? (2020, 揚(yáng)州 ) —He together with his students __A__ Zhuyuwan Park. A. has gone to B. have gone to C. has been to D. have been to (2)We__C__the city for two months. A. have gone to B. have been to C. have been in D. have been (3)He has been_in/at(到達(dá) )the station for half an nobody meets him. 2. yet, ever, already, still 【 典例在線 】 I haven39。 【 拓展精析 】 都是形容詞。s been in my house __C__ 8: 00 this morning. A. at B. For C. since D. till 6. —__C__ have you been a teacher? —For twenty years. A. How far B. How often C. How long D. How soon 7. I have __C__ this puter for five years, but it still works well. A. bought B. have C. had D. taken 8. There __A__ a girl singing next 39。 三理。duty Advantages(好處 )for us to do housework can relax(放松 ) ourselves,keep us healthy, make parents happy and make us l