Our teacher of English,Mr Liu,is of medium height.He has a large impressive head with eyes that always sparkle with wisdom.Slightly bald on the top of the head,he wears silver-rimmed glasses.At first sight,he strikes students as a man of great learning.
    Mr Liu's teaching is very successful.His witty remarks and sense of hurmor make his lectures vivid.In class,he is able to make weak students understand difficult points and keep strong students buzy.Apart from giving students necessary grammar rules and explaining word usage,he organizes various forms of work aimed at mastering certain skills.
    Mr Liu is strict with his students.Not allowing an iota of carelessness,he teaches them never to forget to dot the i's and cross the t's.Under his guidance,students make quick progress.