Unit 5 Wonders of Our Body 同步练习 1.doc

Unit 5Wonders of Our Body 同步练习Period OneGetting Ready & Reading ()基础落实. 课文理解1A low concentration of white blood cells will _. Astrengthen the bodys ability to fight infectionsBlead to a healthy bodyCreduce the amount of red blood cellsDreduce the bodys ability to fight infections2Which kind of blood can be transfused into the person who has blood type A？AType B. BType AB. CType A. DType B and type AB. 3Which kind of blood has both “A” antigens and “B” antigens？AType A. BType B. CType AB. DType O. 4When you have an infection，how does your body response？AThe number of white blood cells soars. BThe number of red blood cells reduces. CThe number of white blood cells reduces. DThe number of red blood cells soars. 5Blood tests cannot _. Afind blood typeBcheck for signs of infectionCdetermine the concentration of various chemicals in bloodDdistinguish the sex of a person. 课文缩写Your blood is a 1. _ part of your body. It 2. _ up oxygen in your lungs and carries it to your cells. It carries wastes away from your cells. It carries white blood cells and antibodies. The white blood cells gobble up the invaders，and the antibodies 3. _ them out. Your blood also carries food from your stomach and small intestine to all parts of your body. 4. _ you lost a lot of blood，what would a doctor do？5. _ the blood as quickly as possible by giving you a transfusion of blood donated by another person. But the doctor cant use just anyones blood，the donors blood has to be of a type that wont be 6. _ by your blood. People with a certain type can 7. _ blood of only certain other types. Your blood type can be found by a technician in the lab. But blood typing isnt the only 8. _ to have a blood test taken. It can also check for signs of infection. Other blood tests can determine the concentration of various chemicals in your blood or the variety and types of blood cells circulating in the blood. The information 9. _ in a drop of blood may lead to a doctor to suggest ways to treat or 10. _ dangerous health conditions. 能力提升阅读理解ASports can help you keep fit and get in touch with nature. However，whether you are on the mountains，in the waves，or on the grassland，you should be aware that your sport of choice might have great influence on the environment. Some sports are resourcehungry. Golf，as you may know，eats up not only large areas of countryside，but also tons of water. Besides，all sorts of chemicals and huge amounts of energy are used to keep its courses(球场) in good condition. This causes major environmental effects. For example，in the dry regions of Portugal and Spain，golf is often held responsible for serious water shortage in some local areas. There are many environmentally friendly sports. Power walking is one of them that you could take up today. You dont need any special equipment except a good pair of shoes；and you dont have to worry about resources and your purse. Simple and free，power walking can also keep you fit. If you walk regularly，it will be good for your heart and bones. Experts say that 20 minutes of power walking daily can make you feel less anxious，sleep well and have better weight control. Whatever sport you take up， you can make it greener by using environmentally friendly equipment and buying products made from recycled materials. But the final goal should be “green gyms”They are better replacements for traditional health clubs and modern sports centers. Members of green gyms play sports outdoors，in the countryside or other open spaces. There is no special requirement for you to start your membership. And best of all，its free. 1Which of the following is the author most probably in favor of？ACycling around a lake. BMotor racing in the desert. CPlaying basketball in a gym. DSwimming in a sports center. 2What do we know about golf from the passage？AIt is popular in Portugal and Spain. BIt causes water shortages around the world. CIt pollutes the earth with chemicals and wastes. DIt needs water and chemicals to keep its courses green. 3The author uses power walking as an example mainly because _. Ait is an outdoor sportBit improves our healthCit uses fewer resourcesDit is recommended by experts4The author writes the passage to _. Ashow us the function of major sportsBencourage us to go in for green sportsCdiscuss the major influence of popular sportsDintroduce different types of environmentally friendly sportsBPeople turn to magic chiefly as a form of insurancethat is，they use it along with actions that actually bring results. For example，hunters may use a hunting charm(咒语)But they also use their hunting skills and knowledge of animals. The charm may give hunters the extra confidence they need to hunt even more successfully than they would without it. If they shoot a lot of game(猎物)，they credit the charm for their success. Many events happen naturally without magic. Crops grow without it，and sick people get well without it. But if people use magic to bring a good harvest or to cure a patient，they may believe the magic was responsible. People also tend to forget magics failures and to be impressed by its surface successes. They may consider magic successful if it appears to work only 10 percent of the time. Even when magic fails，people often explain the failure without doubting the power of the magic. They may say that the magician made a mistake in reciting the spell or that another magician cast a more powerful spell against the magician. Many anthropologists(人类学家)believe that people have faith in magic because they feel a need to believe in it. People may turn to magic to reduce their fear and uncertainty if they feel they have no control over the outcome of a situation. For example，farmers use knowledge and skill when they plant their fields. But they know that weather，insects，or diseases might ruin the crops. So farmers in some societies may also plant a charm or perform a magic rite to ensure a good harvest. 5From the passage，we can learn that the writer