时态练习
题目
时态练习
10.It began to rain _____this afternoon.(sudden)
11.We can learn about the _____ of ancient animals from their fossils.(life)
12.Have you ever been to that ______park?It’s very famous in Guangzhou.(amuse)
13.¬¬¬¬¬¬_________,all the students in his class went to university.(final)
14.There used to be a lot of ______ in this area.(mouse)
15.He is the _____tallest student in his class.(three)
16.Don’t eat too many sweets.They are ______ to your teeth.(harm)
17.Don’t be afraid of the worm.(蠕虫) It’s________ (harm)
18.Some dinosaurs were very gentle.They were like chickens.(合并)
Some dinosaurs were ______ _____ _____ chickens.
19.Jean’s mother put some presents in her stockings.(否)
Jean’s mother _______ ________ ______ presents in her stockings.
20.The fisherman caught five fish in all.
_______ ______ fish _____ the fisherman _______ in all?
答案
10.It began to rain suddenly this afternoon.(sudden)
11.We can learn about the _life____ of ancient animals from their fossils.(life)
12.Have you ever been to that _amusing_____park?It’s very famous in Guangzhou.(amuse)
13.¬¬¬¬¬¬_Finally_______,all the students in his class went to university.(final)
14.There used to be a lot of _mice_____ in this area.(mouse)
15.He is the ___third__tallest student in his class.(three)
16.Don’t eat too many sweets.They are _harmful_____ to your teeth.(harm)
17.Don’t be afraid of the worm.(蠕虫) It’s__haemful______ (harm)
18.Some dinosaurs were very gentle.They were like chickens.(合并)
Some dinosaurs were _as_____ _gentle___as_ _____ chickens.
19.Jean’s mother put some presents in her stockings.(否)
Jean’s mother ____doesn't_put____ _any__ presents in her stockings.
20.The fisherman caught five fish in all.
_How__ __many fish __did the fisherman __catch in all?
举一反三
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.
我想写一篇关于奥巴马的演讲的文章,写哪一篇好呢?为什么好
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