With the 【小题1】(develop) of industry, air pollution is getting more and more serious. In Beijing, many people suffer different kinds of illnesses  because 【小题2】 air pollution.

Air pollution is caused by the following 【小题3】 (reason): about half of the problem is caused by vehicles. There are more and more cars, buses on the roads, and they give off 【小题4】 (harm) gases.25% of air pollution is caused by factories. Another factor is the smokers. Smoking not only does harm to their health 【小题5】to others.【小题6】 (beside) these, about 10% of air pollution is caused by other reasons.

We should take some measures to fight 【小题7】 pollution. New fuel can be used to take 【小题8】 place of gas. We can plant more trees. If everybody realizes the 【小题9】 (important) of the environment and does something to stop pollution, the problem will 【小题10】 (solve).

   Here are some top tips for world travelers.

Travel light.【小题1】 It’s no fun carrying a huge bag around a foreign city.Don’t take too many clothes and avoid heavy books and electrical equipment.

【小题2】 Always keep your passport on you in an inside pocket or special travel belt.There may be thieves about.It’s a good idea to make a photocopy(复印件)of your passport and travel documents.

Transport sense.Don’t let go of your bags on the train.【小题3】 There are always thieves on public transport.If you want to sleep,tie your bag to your arm.When you take a taxi,it’s a good idea to ask for the driver’s permit.Many foreigners pay too much money because they take unofficial taxis.

Keep clean.It’s a good idea to wear dark clothes because they hide the dirt while white clothes attract it!Make sure you have plenty of clean underclothes and deodorant(除臭剂).【小题4】

【小题5】 You should always be polite and respectful towards the locals.Even if you find their habits and behaviour a bit strange,you shouldn’t show your feelings.Remember,you’re their guest.

A large number of students from all over the country studies in our beautiful new school.There has a big library in our school.We can take out all the different kind of books we like to read.I often borrowed novels from a library.There is also a beautiful garden in their school.I like to do most is enjoy the great view of it.Many kinds of flowers of different colors bloom in it，so lots of butterflies come or fly around them.Our classroom is next to in the garden.Have classes in such a beautiful environment，we feel very happy.