Exercising is good for our health.Everyone knows that exercise is important.We all need exercise.Doc
题目
Exercising is good for our health.Everyone knows that exercise is important.We all need exercise.Doctors say it is good for us.It makes your heart and body strong.Children often exercise.
There are different kinds of exercise.You can walk,run swim,skate,or play ball games.Make sure you exercise in the following ways:you h_____ to like what you're doing.Exercise enough b______ not too much.It'sbest to exercise twice a week.Thirty minutes each time is enough.Try all kinds of things until you f______ one,two or three sports that feel right for you.
Exercise can be fun,and many people enjoy it.How do you exercise.
六,用适当的句子完成对话.
A:____________________________?
B:I usually go to the countyeside with my friends on weekends.
A:____________________________?
B:Five,We are classmates.
A:Do you go there in the afternoon?
B:____________________________.
A:____________________________?
B:Once a month.
A:____________________________?
B:Yes.We always have lotsof fun during the trip.
答案
have but find
What do you do on weekends、
How many people will go there?
Yes
How often do you go there?
Do you have fun during the trip?
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已知函数f(x)=x,g(x)=alnx,a∈R.若曲线y=f(x)与曲线y=g(x)相交,且在交点处有相同的切线,求a的值和该切线方程.
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