3.我们期待你们做文明观众，确保不乱扔垃圾。

All are expected to be civilized audience and be sure not to leave litter everywhere.(be sure to do...)

All are expected to be civilized audience and make sure you don't leave litter everywhere. (make sure...)

Poster

　　In order to celebrate the coming Teachers' Day，some performances will be given at 7 o'clock on Sunday evening，September 9th,2018 in the School Activity Center.All students are welcome to the right place 10 minutes earlier before the performances begin.Our president as well as some teacher and student delegates will give a speech at the ceremony，followed by the performances.All are expected to be civilized audience and make sure you don't leave litter everywhere.

　　Wish you a nice evening!

Students' Union

Ⅰ.阅读理解

(2018·河北邯郸临漳一中高一上月考)

　　You may think there are no differences between British and American people.After all，they speak the same language，don't they？If you ask a British or an American person，he will probably tell you that there are differences.And the differences are quite great.

　　What do British people think American people are like？The British think American people are very strange.They make a lot of noise and they laugh too loudly.They are rich，and they only think about money.But the British do say that American people are kind and friendly people.They're happy to help you if you are in trouble.

　　What do Americans think of the British？Well，they think the British are cold and very unfriendly.They are not interested in success or in making lots of money.They think British is the best country in the world.They look down on other countries.But Americans say that the British are quite hard workers.They are brave and honest.And in time of trouble they face difficulties happily.

You can see that these ideas can cause misunderstanding between the British and Americans.But when American and British people become friends，they usually find things are not as bad as they expected.