这几篇英语短文大概到什么难度,初中几年级或是高中必修几?

这几篇英语短文大概到什么难度,初中几年级或是高中必修几?
At three a.m.,Jack Mills was sitting at the controls of the mail train.The train was made up of 13 cars.At the end of the train,71 mailmen sat sorting the mail.Inside the second car,there were only five mailmen and 128 bags full of five-pound notes.This train had run more than 100 years without being robbed.At three minutes past three,Mills and his helper,David Whitby,saw a yellow warning light.They slowed the train,and then stopped.Whitby went to the telephone beside the track.It was out of order.Then he saw a man moving between the second and the third car.Before Whitby could give a warning,he was knocked down by two men.Mills’ cars with all the mailmen had been disconnected by the robbers.At the bridge,the bags of money were unloaded from the train and thrown into waiting trucks.One of the robbers who obviously knew the schedules(时刻表) of all the trains kept looking at his watch.At 3:45,he said,“That will have to be enough.” The robbers drove away with more than 2,500,000 pounds.
My father had returned from his business visit to London when I came in,rather late,to supper.I could tell at once that he and my mother had been discussing something.In that half-playful,half-serious way I knew so well,he said,"How would you like to go to Eton?"
"You bet," I cried quickly catching the joke.Everyone knew it was the most expensive,the most famous of schools.You had to be entered at birth,if not before.Besides,even at 12 or 13,I understood my father.He disliked any form of showing off.He always knew his proper station in life,which was in the middle of the middle class; our house was medium-sized; he had avoided joining Royal Liverpool Golf Club and went to a smaller one instead; though once he had got a second-hand Rolls-Royce at a remarkably low price,he felt embarrassed (尴尬的) driving it,and quickly changed it for an Austin 1100.
This could only be his delightful way of telling me that the whole boarding(寄宿制的) school idea was to be dropped.Alas!I should also have remembered that he had a liking for being different from everyone else,if it did not conflict(冲突) with his fear of drawing attention to himself.
He seemed to have talked to Graham Brown of the London office,a very nice fellow,and Graham had a friend who had just entered his boy at the school,and while he was in that part of the world he thought he might just as well phone them.I remembered my eyes stinging(刺痛) and my hands shaking with the puzzlement of my feelings.There was excitement,at the heart of great sadness.
"Oh,he doesn't want to go away," said my mother,"You shouldn't go on like this.” “It's up to him," said my father."He can make up his own mind."