fill [fil] vt. 裝滿，填（寫）(write)
fill ...with... 使...充滿...
fill out/up a form 填表
fill in... 填寫..., 替代...
e.g. george is the best(最好的) person to fill this vacancy ['veikənsi]（空缺）.
film[film] n.電影(movie)，薄膜, 膠卷 vt.把...拍成電影
develop a film 沖洗底片
e.g. have you seen any(任何的) good films lately（最近）?
find [faind] vt.（found, found, finding） 找到, 發(fā)現(xiàn)(discover)
find out... 發(fā)現(xiàn)..., 查明(真相等)
e.g. i find russian grammar（語法） very difficult（困難的）.
finding ['faindiŋ] n. 發(fā)現(xiàn)（discovery），（pl.）調(diào)查/研究的結(jié)果
e.g. the research（研究） findings will be published（公布）next week.
finger ['fiŋgə] n. 手指
keep one’s fingers crossed 祈求成功
green fingers 綠手指，園藝能手
e.g. every finger of hers is dirty.
finish vt.完成(accomplish, complete, fulfill),結(jié)束(end) n. 最后階段， 完成，結(jié)束，完美
e.g. i have finished cleaning（使清潔） the room（房間）.
fire ['faiə] n. 火, 火災(zāi) vt. 點燃, 放槍, <口>解雇(dismiss)，著火
catch fire 著火
be on fire 起火， 正興奮著
set fire to... 點燃...
make a fire 生火
e.g. according to （根據(jù)）the law of labour（勞動法）, bosses（老板） can't fire workers at will （任意地）any longer（不再）.
fix [fiks] vt. 固定(install, fit)， 修理(repair, mend)，安排(arrange)， 注目
fix up 安排,修理, 解決
e.g. i asked（要求） the boy to fix the bicycle（自行車）.
flight [flait] n. 飛行，航班，飛機的航程
flight course 航線
flight crew member 機組人員
e.g. did you have a good（愉快的） flight?
flood n. 洪水，水災(zāi) v. 淹沒，大量涌到
flood in... 大量地涌到...
flood... with... 使...充滿
e.g. there was a flood of complaints（抱怨） from the press（報紙上的報道） about him.
flow [fləu] vi. (液體)流動，飄動(wave) n. 水流(current, stream)氣流， 流量
flow away 流走
flow into... 流入...
e.g. her tears（眼淚） flowed fast（很快地） at the bad（懷的） news（消息）.
flower ['flauə] n. 花 v. 開花(bloom)
e.g. it's quite a beautiful flower.
flu [flu:] n. 流感(= influenza)
catch a flu 患了流感
e.g. i caught a flu and had to不得不 lie in the bed.臥床休息
fly [flai] vi. （flew, flown, flying）乘飛機， 飛越， 使飄揚n. 蒼蠅
fly a kite 放風(fēng)箏
fly disease 蠅疾病
fly high 有雄心大志, 情緒高漲
e.g. housework家務(wù) keeps mother on the fly忙碌 all day.
focus ['fəukəs] n. (興趣活動等的)中心(center)v. 聚焦(concentrate)
focus... on/upon... 把（精力/注意力）集中在…
e.g. you must try to focus your mind(思想) on work（工作） and study（學(xué)習(xí)）.
fog [fɔg] n. 霧
thick fog 濃霧(一級能見度)
e.g. i was really in a fog 一團糟after the exam.
follow vt.跟隨(chase, go after, pursue)，理解(understand, comprehend, catch on)，遵循(comply with, keep to, obey, observe)，從事，注視
as follows 如下
e.g. the children followed their mother into the room（房間）.
food [fu:d] n. 食物, 養(yǎng)料
fast food 快餐
e.g. i like chinese food very much.
foot [fut] n. 足，英尺 腳
stand on one’s feet 站立起來（病后恢復(fù)）
on foot 走路
e.g. we decided（決定） to go（去） on foot.
football n. 足球(比賽)
play football 踢足球
football match 足球比賽
e.g. we play football on the grass.草地
force n. 力量(power, strength)，武力(violence) (pl.)軍隊(army, troop) vt.強迫(compel)
force sb to do sth. 迫使某人做...
put sth into force 使...生效
come into force 生效，實施
e.g. the thief（小偷） took（拿走） the money from the old man by force（用暴力）.