1．

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Computers are very important.Have you（1）one at home？You can do（2） things on the computer.As students，when you write your（3），you can do it on the Internet.When you want to have a good travel，you can check the times of trains and（4）plans online.You can also send email （5） your friends or talk with them.When you are free，you can listen to music（6）watch movies on it.What's more，you can go（7） on the Internet.There you can buy almost all the things you like.Of course，you can also play games on it.（8）remember：don't spend too much time（9） games.It's bad（10） your eyes and study.

2．What does it mean to be green？Green is more than just a （1）.It also means taking special steps to protect the environment.Buying a green product is a small step everyone can take.Deciding （2） a product is green，however，isn't always easy.We need to consider the whole life cycle of the product even after it's of no use.Here is what we may keep in mind.
   The materials of a product are usually the first thing we need to pay attention to.What is it （3） of？Are there any harmful chemicals（有害化學(xué)物質(zhì)） in it？Green products are made of more natural materials which are free from harmful chemicals，so （4） can be good for our physical health.
   Packing is important.How is a product packed？Is it over packed？We'd better choose glass and paper packaging as these can be reused.We can （5） look for less packing or even choose unbagged products if it's possible.
   Location matters.Where was a product produced？Where are we buying it？Try to choose （6） products.When it comes to food，it is a good idea to order directly from farmers，shop at markets and buy fruits in season in your own town or city.Buying from stores near our houses is also a good choice because we can go there （7） driving a car.
   Look into what companies（公司） tell us about their product.It's easy to say that a product is "green" or "all natural" but the words may be too good to be true.So，much of the information about a product can't be completely believed.After all，companies try to make us believe that their products are environmentally responsible（負(fù)有責(zé)任的）.
   We should develop a habit of buying what we really need.Things like food and clothing are necessary for life，but many others （8）.Better than buying is choosing to leave an unnecessary product in the store.It sends the message to the producer — keeping money in our pockets，reducing waste and keeping the planet healthy.

3．

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Do you walk into the classroom with your head held high？Do you like speaking in front of the class？Do you smile and say hi to all your （1） actively？If yes，then you're a very confident（自信的） person.But not （2） feels the same.Low self-confidence is a problem for many people.
   If someone hurts you at school，or you feel that you are left out in school activities，it can influence your confidence levels and cause your shyness （3） people.But if you can improve your confidence，you'll feel much （4） and better and be able to face new challenges.
   Here are （5） ways that can help.First of all，you must think bright sides.Instead of paying attention to （6） you can't do，pay attention to what you can!Accept things that you have to do and love the person you are. （7），think about what you have already （8） to do and be proud of yourself!Show how special and talented（有才能的） you are.Finally， （9） now!Speak clearly，raise your head and you'll notice the difference in the （10） you feel and the way people see you.