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同学们回想看看我们共学了哪些句型。本单元我们学习的是如何描述物体的位置。陈述句的格式为：sb. /sth.＋be(not)＋介词短语(方位)。如My book is(not)in my bag.我的书在/不在我的书包里。如果将这个句子改为一般疑问句就是将be动词提到句首，即为Is your book in your bag?寻问物体在哪儿要用到特殊疑问，结构为特殊疑问词where＋一般疑问句。如Where is your book?在这里提醒同学们注意的是主谓一致。还是这三个例子，如果要说明的不只一本书，而是几本书，它们分别为“My books are in the bag. Are your books in your bag? Where are my books?”
试一试：你能将方框内恰当的动词形式填入对话空白处吗？如果填对了，说明你掌握了主谓一致的基本原则，如果有错，不必着急，可以向你的老师或者同学请教。
am is are has have
I 1 John. I 2 a pen. It 3 on my desk. Tom is my friend. He 4 two pencils. They 5 in his pencil case. We are in the same(相同)school.
查看习题详情和答案>>—由尘埃和各种气体组成。
—_______________________.
—It is made up of dust and gases.
2．—空气污染主要是什么引起的？
—汽车的废气。
—What is air pollution mainly_______________________?
—The waste gases from cars.
3．大气保护地球免遭太阳的炙烤。
The atmosphere______________________ the sun's heat.
4．我发现学这个单元的生词很难。
I found it_______________________the new words of this unit.
5．这本书将对你的生活有非常重要的影响。
This book will _______________________on your life.
The Dream Jobs
In order to help us form good ideals (理想), we made a survey among 100 students in our school. Here are the results.
查看习题详情和答案>>
为了解同学们的理想，我们在学校的l00名学生中进行了一次调查采访。采访主要是围绕“What do you want to be when you grow up?”和“Why?”这两个问题进行的，请你根据以下调查数据写—份以“the dream jobs”为主题的报告．并谈谈你自己的理想与原因。词数80个左右。(报告开头语已给出．不计人作文总词数。)
The Dream Jobs
In order to help us form good ideals (理想), we made a survey among 100 students in our school. Here are the results.