问题 解答题

运往灾区两批货物,第一批共480t,用8节火车车厢和20辆汽车正好装完;第二批共524t,用10节火车车厢和6辆汽车正好装完.每节火车车厢和每辆汽车平均各装多少吨?

答案

设每节火车车厢装x吨,每辆汽车装y吨.

根据题意,得

8x+20y=480
10x+6y=524

解得

x=50
y=4

答:每节火车车厢装50吨,每辆汽车装4吨.

阅读理解

Going to an American friend’s house is very exciting. But you must remember to be polite.

When to arrive  If your friend tells you to come “ around 3:00”, that means you can go there a little bit after 3:00. But usually it is a good idea to arrive at the right time.

What to bring   It’s nice to bring something to your friend’s house. This could be a box of chocolates for you two to share, or maybe a movie that you can watch together. You can also bring some flowers. A little gift is a nice way to show your friend that you are excited to be at his house.

How to greet   When you visit your friend’s house, you may also meet his parents. You should tell who you are and they may tell you their names. As a child, I went to visit my friend Paul. I call his parents by their first names John and Mary. But now I know it is more polite to call them Mr or Mrs Smith. You can also call them Madam or Sir.

It is a cool thing to visit a friend’s house. Be polite to your friend and your friend’s parents, and you will be invited again!

小题1:If you are told to get to an American friend’s house around 5:00pm, it is polite to arrive at ______ pm.

A.5:02

B.4:50

C.4:30

D.6:00小题2:If you go to a friend’s house, you’d better take _____ with you.

A.some money

B.some flowers

C.a car

D.a knife小题3:When the writer want to visit his friend Paul, he called his friend’s father ___.

A.Mr Smith

B.John

C.Mary

D.Mrs Smith小题4:The passage mainly tells us ______.

A.when to arrive at your friend’s home

B.how to greet people

C.what to bring to your friend

D.how to be a good visitor小题5:The passage may be from ______

A.a notice on the wall

B.a letter to a friend

C.an article in a magazine

D.a news story in a paper

多项选择题