He plays volleyball.（对volleyball提问）____ ____ he ____?

I have a model plane.（改为一般疑问句，并作否定回答）—____ you ____ a model plane?—No, ____ ____.

They have some oranges.（改为单数句）He ____ ____ orange.

阅读填词，选择合适词的适当形式填空
so, busy, good, invite, we, camp, doctor, see, hard, maybe
Dear Mary,
Thank you for your letter and your58____. I really hope I can go59____with you, but I have to say sorry to you. I’m too 60____next week!On Monday, I have to see the 61____. There is something wrong with my eyes. I can’t 62____ people or things a little far from me clearly. 63____I should wear a pair of glasses. On Tuesday, I have football training. You know, I’m on 64____ school football team. We’ll have an English test on Friday morning, 65____ on Wednesday and Thursday I have to stay at home and study 66____. On Friday afternoon, I’m going to a concert. My favorite stars will come. I like their music very much.
Have a 67 ____ time! And please call me after you come back from your camping.
　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　Yours,
　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　 Susan

填空
44.In my hometown, the weather of this summer is much ____(hot) than that of last summer.
45.It’s a good habit to brush your____(牙齿) every day.
46.Thank you very much for____(邀请)me to your birthday party.
47.The man shows great ____(兴趣)in sports. He enjoys it very much.
48.The funny story makes him l____.
49.I just finished____(读) the story book.
50.We should do more exercise to keep____(健康).
51.— How many times should I take the medicine, doctor? — ____(两次) a day, please.
52.Audrey Hepburn was ____(活跃的) in the film industry for nearly 40 years.
53.Tom and Jerry r____ their bikes to Uncle Ma’s Farm twice a month.
54.The old town attracts____of foreign visitors every year.(hundred)
55.Mary comes from England and her old school is smaller than____.(our)
56.I think this problem is much ____ (easy) than that one.
57.It’s necessary for us ____ (understand) the importance of health care.

当x取____时，-|x|+1有最____值为____.

比较大小：____，|-3|____-4，(-3)²____(-2)³.

比较大小：____，|-3|____-4，(-3)²____(-2)³.

重力的施力物体是____。如图所示，弹簧测力计的分度值是____N，砝码受到的重力是____N。

起重机要吊起1000N的钢件，使其向上以1 m/s的速度做匀速直线运动，钢丝绳受到的拉力____1000N（填“大于”或“小于”或“等于”），若让物体以2 m/s的速度匀速上升，钢丝绳受到的拉力要____（填“变大”或“变小”或“不变”）。