Unit 15 We’re trying to save the manatees!教案

present: reviewed throughout the book
past with used to: unit 4
passive voice: unit 10
present perfect: unit 14
while the groups are working, walk around the classroom helping the students with their explanations and their sample sentences.
ask one student of each group to show their work. as the students show their work, ask questions and correct any errors in their explanations or sentences.
（1） present progressive: one form of the verbs that express action that continues over a period of time, also called present continues tense. the structure is am/is/are+ -ing. for example: he is reading a story book.
（2） present: it is used for indicating action that is usual and habitual. the form of the verb is do or does. for example:
i go to school by bike.
she does her homework every day.
（3）past with used to: the structure of used to + inf. indicates a constant or-frequent practice in the past. for example:
i used to go swimming when i was a child.
（4）passive voice: the form of the verb is be + p.p in the sentence. for example:
our classroom is cleaned every day.
（5） present perfect: the from of the verb is have/has + p. p
for example:
i have already finished my homework.
step ⅵ summary
in this class, we’ve learned some important words, such as endangered, mangrove swamps, habitat, aquatic feed. we’ve also learned the target language how big are manatees? they’ve about 10 feet long and they weigh about 1 000 pounds. at last, we reviewed some grammar we have learned.
step ⅶ homework
1. make conversations in pairs to review the target language.
2. make five sentences to review the grammar focus.
step ⅷ blackboard design
unit 15 we’re trying to save the manatees!
section a
the second period
make sentences to review the grammar focus:
（1） he is reading a story book.
（2） i go to school by bike. she does her homework every day.
（3） i used to go swimming when i was a child.
（4） our classroom is cleaned every day.
（5） i have already finished my homework.

unit 15 we’re trying to save the manatees!
the third period
ⅰ. teaching aims and demands
1. knowledge objects
（1） key vocabulary against, be suitable for, tiny cages, educate, care for, urge
（2）target language i think that animals should not live in zoos.
i disagree with you. i feel that zoos provide clean and safe places for endangered animals to live.
2. ability objects
（1） train students’ integrating skills.
（2） train the ability of expressing students’ own opinions.
3. moral object