唇齿摩擦音[f]和[v]发音讲解及练习

[f]：唇齿摩擦清辅音
具体发音要领：上齿轻触下唇，然后用力吹气，让气流从唇齿间挤出，摩擦成音，声带不振动。
代表单词：five, life, cough

[v]：唇齿摩擦浊辅音
具体发音要领：和[f]发音相似，声带需振动
代表单词：video, give, drive

[f]字母及字母组合拼法
f：fan, fork, family, fire
ph：photo, phone
fe ：life, wife, safe, knife
ff：giraffe
gh：laugh, tough
短语：the five fingers.
句子：His wife likes beef and fish.

[v]字母及字母组合拼法
v：vase, vest, van, village
ve：wave, move, five, love
短语：visit the village .
句子：Everyone should give a valid vote.