Unit 3 Science versus nature教學設計（表格式）

3. finish activity b1 on page 107

課     題

unit 3 science versus nature

課時9-3

vocabulary

主備人

swan

授 課 時 間

教 學 目 標help the students learn how to guess the meanings of words by looking at their prefixes and suffixes.enable the students to understand the meanings of some prefixes and suffixes and learn the organs of human body.

教學重、難點learn word formation with prefixes and suffixes. how to use these prefixes and suffixes.

教、 學  具a slide and a computer.

預 習 要 求教師活動內容、方式

學生活動內容、方式

旁  注step i revisioncheck the answers to activity b1 on page 107.from the exercise, we know that a word or a phrase can have several different meanings, and there are many words like them in english language, so we have to learn to use the english-english dictionary to study english. we should learn to paraphrase some words and sentences, namely, we should use english to explain english. ask several students to retell the reasons. step ii lead-int: we talked about cloning yesterday and you all expressed your opinions about it. we know cloning technology is one of the scientific achievements. now pay attention to the two words. who can tell me how the two words are formed?write “scientific achievement” on the bb.s1: “scientific” is the adjective form of “science”.s2: “achievement” is the noun form of “achieve”.step iii prefixes and suffixest: now. i’ll show you some prefixes and suffixes. look at the screen please.in the period, students should try their best to grasp the meanings of prefixes and suffixes showed on the screen according to the teacher’s explanation.

prefix

example

meaninganti-anti-cloningagainst, oppose todis-disappearnot, opposite ofin-incorrectnot, withoutil-illegalim-immoralir-irresponsiblepre-previewearly, beforepro-pro-cloningin favor of supportingre-recreateagainstun-unfairnot, opposite ofco-co-operationtogether, do togetherde-decreasereducemis-misunderstand bad wrong nottrans-transportacross beyond into another placetele-telephoneover a long distancefore-foretellbefore in advance of ex-ex-wifeformersub-subwayunderover-overworktoo muchunder-undergroundbelowinter-internationalbetween

suffix

example

meaning-ablecomfortableworthy of, able to do-fulcheerfulfull of, characterized by -istscientistsomeone who does something-lesshopelesswithout-mentagreementindicate a state or condition-nessdrynessindicate a quality state or character-eeemployeeperson affected by-erteacherperson or thing that does