Unit1 1 average 平均的；平均数 The average age of the students is 15. 2 item 一件物品；节目；项目 She had the most expensive item on the menu. 3 product产品 [C] a product many products 区别goods, goods生来复数 4 fighter 斗士；战士--注意复数 fight-fought-fought fight against pollution对抗污染 fight for freedom为自由而战 5 fact 事实 in fact事实上；实际eg; She looks young, but in fact she is 54 years old. 6 scientist科学家—注意单复 science科学 scientific科学的 7 be interested in对…感兴趣 be keen on/really like have interest in/show interest in have no interest in… in是介词;介词后面跟doing 8 suppose认为；假设；假定；推断 Eg; I suppose prices will go down. Scientists supposed that large dinosaurs lived in swamps.(沼泽) 9 breathe呼吸 Eg; The air was so cold that we could hardly breathe. Most people don’t realize that they are breathing polluted air. breathe in吸入 His illness is the result of breathing in harmful gases over many years. breathe out呼出 Human beings breathe in oxygen and breathe out carbon dioxide. breath n. out of breath 上气不接下气 take a deep breath深呼吸 10 gas---gases 气体；气态；煤气 11 release---let…out释放 Four prisoners were released 12 produce=make 制造 13 alive活着的；健在的 be alive Lu Xun isn’t alive while Han Han is alive. 区别living; living things生物 14 as well as Eg; The captain, as well as the passengers, was saved. The captain and the passengers were saved. She is beautiful as well as clever. 15 nature---natural 16 warn sb not to do sth.警告某人不要做某事 warn---warning 17 protect保护 protect A from B stop A fromB prevent A fromB save A from B keep A from B 18 chemical化学的；化学物质 chemistry化学---chemical 19 join the army参军（组织） Would you like to join us? join in=take part in参加活动 attend 出席（学校；会议；俱乐部） 20 communicate with sb和某人交流沟通 communicate with one another/each other相互交流沟通 21 one another=each other one another侧重三方以上的相互 each other双方的相互 22 burn---burnt---burnt burn---burned---burned 23 replace=take the place of sb/sth 24 hardly any=almost none hardly any没有什么东西 25 main---mainly 26 lorry---lorries 27 make sb do让某人做某事 28 thank sb for doing sth感谢某人做了某事 29 belong to sb sb是宾格；属于;无进行无被动 30 by doing sth/ by not doing sth 通过做某事/通过不做某事 31 what good=what advantages什么好处 32 what else 别的什么；其他的.. 33 五个感官动词look sound smell taste feel加形容词；注意look和look at；注意well 34 too在否定句中变成either 35 certain---certainly当然 36 for example加句子有逗号such as 加名词或动名词 37 remind sb of sth使某人想起什么；提醒某人某事 38 contain—container 39 区别protect…from…和protect…by…看意思 本文来源：https://www.wddqw.com/doc/bf0f38f8b94cf7ec4afe04a1b0717fd5360cb228.html