Unit 4 Public TransportGrammar and usage---教案 Teaching aims: learn the verb-ing and verb-ed used as an attribute or as an adverbial .Important and difficult points: the verb-ing and verb-ed used as an attribute or as an adverbial.Period oneStep 1.Ask Ss to read Parts1 and 2.Step 2. Practice (Deal with Part A ).Step 3. Go through Parts 3, 4 and 5.Step 4. Deal with Part B.Step 5. Exs (C1 and C2 of Page 128 in Workbook).Step 6. Homework: Go through the paper and finish off the exercises of it.(15m)Period TwoStep1.分词作定语。分词作定语时有下面几个特点：A.现在分词表示主动意义，过去分词一般表示被动含意。B.现在分词表示正在进行，过去分词表示状态，或己做完(完成)的事。例如：He rushed into the burning house.他冲进了正在燃烧着的房子。The child standing over there is my brother.站在那儿的男孩子是我弟弟。The room facing south is our classroom.朝南的房间是我们的教室。Have you got your repaired watch?你拿到那个修好的表了吗?He is an advanced teacher.他是个先进教师。Step2.分词作状语1.分词和分词短语作状语时，可以表示时间、原因、条件、让步、方式和伴随情况。在表示时间、原因、条件、让步和方式时，通常可转换为相应的状语从句，表示方式和伴随情况时，可以转换为一个并列的谓语成分。例如：Seeing the teacher entering the room, the students stood up.(=When the students saw the teacher entering the room, they stood up.)学生们看见老师走进房间，都站了起来。Heated, ice will be changed into water.(=When it is heated...)当冰加热时，它就会变成水。(条件、时间)Being excited, I couldn’t go to sleep.(=As I was excited, I couldn’t go to sleep.)我兴奋得睡不着觉。(原因)I stood there, listening to the broadcast.(=I stood there and listened to the broadcast.)我站在那儿听广播。(伴随)The children went away laughing.(=The children went away. They laughed as they went.)孩子们笑着走开了。(行为方式)Knowing all this, they made m...
