顺次连接四边形各边中点所得的四边形是______．

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问题填空题

答案

（如图）根据中位线定理可得：GF=

BD且GF∥BD，EH=

BD且EH∥BD

∴EH=FG，EH∥FG

∴四边形EFGH是平行四边形．

故答案为：平行四边形．

改错题

After I finished school, I began to look for a work. 1 ________

Now several months has passed, I haven’t found the job 2 ________

I was interesting in. Last Sunday morning, I received a 3 ________

phone call from a man calling Mr. Wang. He said on the 4 ________

phone, “I hear you do well on your studies. I may offer 5 ________

you a job.” I entered into his office with a beating 6 ________

heart. How I wished I will go through the job-hunting 7 ________

talk and he would take on me as a lab assistant. But 8 ________

to my surprise, what he said made me to feel disappointed. 9 ________

That he needed was only a model.

10________

填空题

单位换算： 1.5t=______kg；2.6km=______cm；10m/s=______km/h