17．
　　Life in the 22nd century will be different from that in the 21st century, because many (1)       will take place.
　　The population is growing fast. There will be more and more people in the world and (2)       of them will live longer than before. Computers will be much smaller and more useful, and there will be (3)       one in every home. And computer studies will be one of the most important subjects at school.

　　People will work (4)       hours than they did in the 21st century, and they will have more free time for sports, watching TV and traveling. Traveling will be much easier. And more people will go to (5)       countries for holidays.
　　There will be changes in our food, too. More land will be used for building new towns and houses. Then there will be less room for cows and sheep, so meat will be more expensive. Maybe no one will eat it every day;instead they eat more vegetables and fruit. (6)       people will be healthier.
　　Work in the future will be different, too. Robots will do dangerous and hard work. Because of this, many people will not have enough work to do. This will be a problem.

30．Read and choose the best answer (阅读短文并选择正确答案):
　　Being safe in your everyday life needs knowledge. If you remember the following information, your life will be much safer.
● Always notice the environment around you. You shouldn't walk alone outside. Make sure where the public phones are. If anything dangerous happens, you can find them easily.
● Don't use earphones (耳机) when running in the schoolyard (校园) or on the street. You will keep yourself from the outside world and can be surprised.
● Your bag should be carried in front of your body instead of putting it on your back. When a bus is full of people, it is easy enough for a thief to take away the things in the bag on your back.
● If you are followed by someone you don't know, cross the street and go to the other way, let the person understand that you know he or she is after you. Next, don't go home right away. You are safer in the street than you are alone in your home.
● If you have to take a bus to a place far away, try to get to the stop a few minutes earlier before the bus leaves. This stops other people from studying you. On the bus, don't sit alone. Sit behind the driver or with other people. Don't sleep.

31．Choose the word or expressions and complete the passage. (选择恰当的单词或词组, 完成短文)
　　Ten years ago I was very healthy. I rode a bike to work and I played tennis a lot and went for long walks. My job wasn't very good, (1)       I had a lot of time to do the things I enjoyed doing.
　　Then, about eight years ago, I got a much (2)       job. The pay (工资) was higher. But the hours were a lot longer, too. I bought a car. I began to (3)       to work every day and take people out to lunch. And I began to (4)       weight (重量), too. I stopped playing tennis and didn't go for long walks any more, because I just had a little time.
　　There's a lot of stress (压力) in the job. Then I started drinking. I started smoking a lot, too.
　　Two months ago I had a heart attack (心脏病发作). At first I just couldn't believe (相信) it. (5)      , it wasn't very serious. The doctor asked me to (6)       drinking and smoking and to eat less. Sometimes I want to know if I should get another job. But if I do that, I won't make so much money. I just don't know what I should do.

32．Read the passage and fill in the blanks with proper words (读短文, 在空格内填入适当的词, 使其内容通顺共, 每空格限填一词, 首字母已给).
　　People have seen the colorful shared bikes (共享单车) in the city streets around China for two years. People can rent (租用) them with a smart phone app and then park anywhere they c(1)      . To relieve (减少) traffic jams and air pollution, many cities have introduced bike﹣sharing services. But sometimes, d(2)       are not so perfect.
　　It is true that it is convenient for people to go out by shared bike. As shared bikes become more popular, problems showed up. According to news reports, users treated shared bikes badly. After people used the bikes, some of them just t(3)       them onto streets and even into the ditches (水沟). Some people stole the bikes or locked them up in chains (链条). A month ago, the police fined a man in Shanghai 1, 000 yuan, because he stole a shared bike.
　　Besides, the damage to the QR codes (二维码) on the bikes has brought huge losses to bike﹣sharing companies, like Mobike (摩拜单车). If the QR code is bad, people cannot use the bike anymore. It can take several hundred yuan for the c(4)       workers to find a lost bike and repair it. Mobike has 100 credit scores for each user. Once the score drops to below 80, bike rental (租金) will go up five yuan per 30 minutes.
　　H (5)      , punishment may not be the best way to stop shared bikes from being stolen or damaged. Bike﹣sharing services will work better only if people f(6)       the rules and show respect for the bikes.

33．Read the passage below and answer the following questions (阅读短文并回答问题)
　　In America, when people say "man's best friend", they don't mean another person. Instead, they are talking about a lovely animal — a dog! These words show the friendship between people and animals.
　　Dogs and other pets can give joy to people. Some people think of their pets as their children. Some people even leave all their money to their pets when they die.
　　Animals can help people, too. Dogs can be taught to be the "eyes" for a blind person or "ears" for a deaf person. Scientists have found that pets help people live longer!They make people happier,
too. Because of that, they bring animals into hospitals for "visits".
　　Americans hold "Be Kind to Animals Week" in the first week of May. Pet shows are held during the week. Even if you don't live in America, you can do this too. How?First think about how animals make your life richer. If you have a pet, take more time this week to play with it. Remember to give it delicious food.
　　If you don't have a pet, be kind to animals around you. For example, _____. If others around you do bad things to animals, try to stop it. As animals' best friends, we must protect them.

34．Write at least 50 words about the topic "Preparing a birthday party for my mother". (以"为我的妈妈准备一次生日派对"为题写一篇至少为50个字的短文, 标点符号不占格．)
Suggested questions:
1. How old will your mother be?
2. What present(s) are you going to buy for her?Why?
3. What are you going to do at the party to celebrate her birthday?