live on ,feed on 区别

live on 是以。。。为食，有靠什么生活的意思， 而feed on纯粹是以。。。为主食的意思

1.“动词 介词”型短语动词

①Many students want to know about the difference between American English and ritish English.许多学生想要知道美国英语和英国英语之间的差别。(SBlA.L10)

②Political leaders fought against slavery; they wanted freedom for all slaves.

政治领导人为反对奴隶制而战；他们要让所有的奴隶都获得自由。(SBlA.L49)

③They eat different kinds of food which change into energy.

人们吃的各种各样的食物都转化为能量。(SBlB.L58)

④The army was called in to cut through fallen trees and to help clear the roads and paths.

军队应召来了，把倒下的树锯断，并帮忙清理大小路。(SB2A.L42)

类似短语动词--

add to增加 agree with同意(某人意见) agree to同意(建议等) agree on(共同)同意 arrive at／in到达 ask for索要 begin with从……开始 belong to属于 believe in信任 bring in引进 bring about带来 break into破门而入 come across(偶然)遇到 come to总计；达到 call for需要；约请 call on／at访问 care for喜爱 change into变成 connect to连接 depend on依靠 deal with处理 die of／from死于 dream of梦想 date from始于 escape from逃离 feel like想要 fight against反抗 feed on以……为食 fire at朝……开火 get to到达 go against反对；违背 go with与……相配 go over检查；复习 hear of／about听说 hear from收到……来信 insist on坚持 join in加入 join to连接 knock at／on敲(门) live on以……为主食 lead to通向；导致 look into调查 look through审核; 查阅 play with玩耍 pay for支付 quarrel with与……争吵 shout at向……吼叫 shoot at向……射击 stare at(惊奇地)看 suffer from遭受……的痛苦 send for派人去请 stick to坚持 succeed in(在……方面)成功 think of认为；想起 think about考虑 throw at向……投掷 vote for投票同意 vote against投票反对 worry about担心；忧虑 work on从事 watch over监视

2.“动词 副词 介词”型短语动词

①How are you getting on with your English lessons? 你的英语学得怎么样?(SBIB.L8l)

②But Einstein stuck to his theory and went on with his research.

但是，爱因斯坦坚持他的理论，继续进行他的研究。(SB2B.L51)

类似短语动词--

break away from脱离 catch up with赶上 do well in在……做得好 do away with废除 drop in on／at(顺便)访问 go on with继续 get down to 开始认真做…… get close to接近 1ook down upon轻视 look forward to盼望 put up with忍受 run out of用完 work hard at努力做

3.“动词 副词”型短语动词

①People are not a11owed to cut down trees when they are still small.

当树还小的时候，是不允许人们砍的。(SBlA.L18)

②After you printed the book，you had to throw away the carved pieces of wood.

你印完书以后，不得不扔掉雕刻过的木头片。(SBlB.L77)

③Why don’t you try this one on? 你何不试试这套呢?(SB2A.L38)

类似短语动词——

blow away吹走；刮走 breakdown分解 breakup分解；拆散 break off折断 bring down降低 bring up哺育 burn down烧毁 call back回电话 call in召集 call off取消 cut off切断 cut up切碎 carry on进行 carry out执行 check out查明 eat up吃光 fix up安顿；修理 give back归还 give off发出 give out分发 get down落下 hand in递交 hand out分发 hand down把……传下去 hold out伸出 hold up阻挡 have on穿戴 join up把……联合起来 keep up保持 keep off离开 keep back留下 look over检查 look up查找 male up组成 open up开创 put on穿上；上演 put down记下 put up建起 put away收拾起 put out扑灭 pick up接收；拾起 pick out挑出 pay back偿还 pay off偿清 point out指出 ring up打电话给…… sell out售完 see off送行 set up建立 show off炫耀 tear down拆毁 take away拿走 take up占据 take off脱掉 throw away扔掉 turn on打开 turn off关掉 turn up拧大声音 turn down拧小声音；拒绝 turn over翻动 wash away冲垮 work out计算出；解决

一个是以......为食，有点had better的意思。一个是以......为生。

第一个以什么为生 第二个用什么喂养 吃什么