高中现在/过去分词需要双写的动词

高中现在/过去分词需要双写的动词
1.以b结尾的动词  
grab抓住 (grabbed, grabbing);   rub 擦/搓(rubbed, rubbing)     rob抢劫(robbed,robbing)
2.以d结尾的动词   nod点头(nodded, nodding);      kid开玩笑 (kidding，kidded)
3.以m结尾的动词   swim游泳(swimming   swam-swum);         jam挤满（jammed, jamming)
4.以g结尾的动词  drag拖/拽(dragged, dragging);     hug拥抱(hugged, hugging);
beg乞求/恳求(begged, begging)     jog慢跑(jogged, jogging);
plug堵塞/补充(plugged, plugging)    dig挖(digging,  dug)
5.以n结尾的动词  
plan(planned, planning);   ban禁止(banned, banning);    run(running, ran--run);  
begin(beginning,began---begun);       win(winning, won--won)
6.以p结尾的动词   clap鼓掌(clapped, clapping);        equip配备(equipped, equipping);
trap使陷入困境（trapped, trapping);   wrap包/裹(wrapped, wrapping);
map绘制...的地图(mapped, mapping);      ship运输(shipped, shipping); slip滑倒/溜走(slipped, slipping);
skip蹦蹦跳跳地走/跳过/不参加(skipped, skipping);   step迈步/行走(stepped, stepping);
drop落下(dropped, dropping);      shop购物(shopped, shopping);      stop(stopped, stopping);
mop用拖把拖(mopped, mopping)    dip下降/蘸(dipped, dipping);      top胜过(topped, topping);
hop单脚跳(hopped, hopping);      cup双手捧起(cupped, cupping);     nap小睡(napped, napping)
trip绊倒/脚步轻快地走(tripped, tripping)
7.以r结尾的动词
occur发生(occurred, occurring);      refer参考/提到(referred, referring);
prefer更喜欢(preferred, preferring);    infer推断(inferred, inferring);     star主演(starred, starring)
8.以t结尾的动词
chat闲聊(chatted, chatting);     pet抚摸(petted, petting);   regret后悔(regretted, regretting);
spot看见/注意到/发现(spotted, spotting);   admit承认/准许进入(admitted, admitting);
permit许可/批准(permitted, permitting)    submit提交/屈服(submitted, submitting)
commit全心全意投入/承诺(committed, committing)       plot绘制/设计情节(plotted, plotting)
pat轻拍(patted, patting);        rot腐烂(rotted, rotting)    wet弄湿(wetting)   
quit停止/离开(quit/quitted, quitting)     fit安装(fitted, fitting)       bet打赌(bet--bet,betting)         forget(forgot,forgotten forgetting);     get(got--gotten,getting);     let(let--let,letting);    set(set--set,setting);     upset心烦意乱不安(upset--upset,upsetting);   
hit(hit---hit, hitting);     cut(cut--cut,cutting);    shut(shut--shut,shutting);
put(put--put,putting);   spit吐痰，吐(spat--spat,spitting);      split分裂分开 (split--split,splitting)
语法填空及写作易错单词   
1．该双写却没有双写的单词（必须双写）
unforgettable,written , inferred, referred ,  occurred, regretting, robbed , permitted, forgetting, wrapping, preferred, begged,  hugged; planned; dropped, winning,   cutting, beginning,  hitting  ，stopping
2．不该双写却双写的单词（括号中为错词）
writing (错误writting) ,    eaten (错误eatten)    suffered (错误sufferred)
3．词性变化时必须去掉字母e的单词  unbelievable---unbelievable, value--valuable, argue-argument,
(真糟糕，简单可能温柔了) true---truly, terrible--terribly,  simple---simply
     possible--possibly,   probable---probably, gentle---gently ,
4．词性变化时不能去掉字母e的单词   (un) changeable,     (re) chargeable, hopeful,   moveable
5．变化非常特别的单词    panic-panicked-panicking
6.常考的动词变名词
pronounce--- pronunciation   explain----explanation                          prepare---preparation Combine---combination      recommend---recommendation                                                         
laugh→laughter    consider → consideration,  recognize →recognition,    occupy → occupation
permit → permission,   admit →admission,  conclude → conclusion,    decide → decision,
describe →  description   survive → survival幸存→ survivor幸存者,   
arrive → arrival,  approve → approval
perform → performance,    apologize → apology,     acquire → acquisition
apply → applicant申请人→ application-申请
to one’s  ...让某人...的是 (satisfy / astonish / annoy / amaze / disappoint / relieve / embarrass )
→satisfaction /  astonishment / annoyance / amazement / disappointment / relief /  embarrassment)   
          “in + 上述名词”，表“处于…状态”
7.名词变形容词  nature → natural,  benefit → beneficial
8.形容词变名词  wise / free →→wisdom / freedom     high /weigh→→height / weight
short/ marry →→shortage / marriage
strong/long/deep/wide/grow/dead/warm-------strength/length/depth/width/growth/death/warmth
curious/various/anxious/able/responsible/popular
→→curiosity/variety/anxiety/ability/responsibility/popularity
9. 形容词变动词
deep/ fast/ class/ identity/ beauty/ simple/ modern/ popular→→
deepen/ fasten/ classify/ identify/ beautify/simplify/modernize/ popularize
10..形容词变副词，不去e的单词(绝大多数辅音字母加e结尾的单词不去e直接加-ly)
    unfortunate →unfortunately,   immediate → immediately,
  absolute→absolutely,      rude → rudely,            approximate → approximately,   
desperate→desperately,   large → largely,      accurate → accurately
   但true-truly, whole-wholly 等除外
11..形容词变副词，以ic 结尾的词，加ally
      economic → economically;     basic →basically;     scientific → scientifically;
      automatic → automatically;     energetic → energetically;
   但是public → publicly（公开地） 例外
12.容易拼写错误的单词
（1）是 or 不是er:  professor,  visitor, translator,  director, editor,  educator, actor,
inventor,     competitor,  conductor  ,monitor
（2） 容易丢掉一个字母的单词
   容易丢掉字母n：government，environment，environmental
   容易丢掉不发音的字母：Christmas，  Wednesday , therefore
（3）拼写比较特别的单词：committee委员会，guarantee担保，dilemma进退两难的困境， opportunity， bridegroom新郎，spokesman发言人，succeed，competition，February二月
13.容易多或少一个字母(括号里是错误的单词)
therefore（therefor错误） habit(habbit)   souvenir纪念品(souvenior错误)   similar  相似（simlar错误）
ninth 第九（nineth错误）     forty四十 （fourty错误）    healthier (healthyer错误)