Unit 5 Theme parks教案

come to life, minority
do part 3 and part 4 in the same way.
step 3    using words and expressions (page70)
t: now, please turn to page 70. let's do part 1 and part 2 using words and expressions. please finish them in 5 minutes. (five minutes later.)
the teacher checks the answers by asking the students to tell the whole class his/her answers one by one.
t: now let's come to part 3: translation. i will ask some students to do their translation on the blackboard, and the rest of you please do yours in your exercise books.
we will check the answers later. five minutes later, the teacher corrects the translation with the class.

step 4   discovering useful structures
get ss to learn some rules of word forming.
in english, according to the form of the words, we can form words in the following ways.
(1) compounding: words are formed by linking two or more words to make one unit.
◆compound nouns: fire-engine, green-house, earthquake, downfall, drop-in
◆compound adjectives: snow-white, firsthand, red-hot
◆compound verbs: sun-bathe, overcome, typewrite
◆compound adverbials: sideways, sky-high, where about
(2) conversion: this is a way which is unnecessary to change a word but only to change its part of speech.
◆from nouns to verbs : house, conduct, digest etc
◆from adjectives /adverbials to verbs : brave, wrong, etc
◆from verbs to nouns: smoke, bathe etc
(3) affixation: words with a prefix or suffix or both attached to a root is formed by affixation. usually this way the word’s speech is not changed.
◆adjectives: unable disloyal irregular
◆verbs: dislike untie transplant
◆nouns: nonconductor inability autobiography
but if a suffix is used, the word’s speech is changed.
for example: agreement, inventor, foolish, discovery, failure, sharpen 
the following prefixes can change the speech of a word, such as en-, be-, em-, a- etc.
for example: rich(adj.)→enrich (v.); slave (n.) →enslave(v.); friend(n.) →befriend(v.); etc.
2. ask ss to finish ex1, ex2, ex3 and ex4 of discovering useful structures on p37 to practice the rules.
step 3. practice
purpose: to get ss to have the knowledge of the grammar through exercises.

1. ask ss to tell the part of speech of each word in italics in the following:
(1) winter has past and spring has come.   
(2) she is a woman far past her youth
(3) i’m tired of your ifs and buts         
(4) she is still but a child. 
(5) i can’t see where i was wrong.