【文章內(nèi)容簡介】 。s some advice to help you carry backpacks fortably and safely. Choose the right backpack. Forget leather （皮革）! It looks great, but it39。s far too heavy. Go for canvas（帆布）. Pick a pack that has two wide, adjustable, fortable shoulder straps（帶子）, along with a hip or waist strap, and plenty of pockets. Make sure the pack fits properly and its size is suitable for the wearer39。s body. Packing it properly. Only put in the pack what is needed for that day. It39。s a good idea to know what each object weighs. The total weight of the filled pack should be no more than 10 to 15 percent of the wearer39。s own body weight. Pack heaviest objects close to the body, and place little ones outside, away from the back. Putting the backpack on. Put the pack on a smooth surface, at waist height. Put on the pack, one shoulder at a time, then adjust（調(diào)整）the straps to fit fortably. Remember when lifting a backpack, or anything, to lift using the arms and legs and to bend at the knees. The right way to wear a backpack. Both shoulder straps should be used, and adjusted so that the pack fits the body, without hanging to one side. Backpacks should never be worn over just one shoulder. You should be able to move your hands between the backpack and your back. The waist strap should also be worn. Take the above advice, and you may not plain back pain, numbness or weakness in your arms and legs any more.（1）What could mainly cause some young people to suffer back pain by their teenage years? A.Too much homework.B.Poor treatment for backs.C.Improper use of backpacks.D.Unhealthy sleep position（2）Which of the following does the writer suggest?①Choose leather backpacks because it looks cool to go to school.②Pick a pack that its size is suitable for the wearer39。s body.③Make sure the backpack contains only what is needed for that day④Pack heaviest objects close to the body, and place little ones outside.⑤Put the pack on a smooth surface, above the waist height.A.①②④B.①③⑤C.②③④D.②③⑤（3）If a boy weighs 40kg, how heavy should his filled backpack be at most? A.About 4kg.B.About 6kg.C.About 10kg.D.About 15kg.（4）What is the passage mainly about? A.Some problems that teenagers face in their study at school.B.The suitable backpack material that you should choose.C.The good influence that backpacks have on your healthD.Some advice on how to carry backpacks fortably and safely.【答案】 （1）C（2）C（3）B（4）D 【解析】【分析】短文大意： 短文主要講述背包影響學(xué)生的健康，如何舒服地和安全地使用背包。 （1）細(xì)節(jié)理解題。根據(jù) More than 50 percent of young people suffer back pain by their teenage years. Research shows that this could be mainly caused （場）improper use of backpacks. 可知不正確使用背包可能誰引起背疼。故選C。 （2）細(xì)節(jié)判斷題。根據(jù) Make sure the pack fits properly and its size is suitable for the wearer39。s body. 保證背包的大小與背書包的人相符，即②；Only put in the pack what is needed for that day. 需要的時(shí)候才背書包，即 ③ ；Pack heaviest objects close to the body, and place little ones outside, away from the back. 當(dāng)背重物的時(shí)候，背包需要貼近身體，背輕的東西時(shí)，可以離遠(yuǎn)點(diǎn)，即 ④ ；故選C。 （3）細(xì)節(jié)理解題。根據(jù) The total weight of the filled pack should be no more than 10 to 15 percent of the wearer39。s own body weight. 這個(gè)男孩四十公斤，可知他最多背15%40kg=6kg，故選B。 （4）此題考查主旨大意。這篇短文主要對如何正確使用背包使人更舒服更安全給出的幾點(diǎn)建議，故選D。 【點(diǎn)評】此題考查閱讀理解。先閱讀短文，理解短文大意。然后進(jìn)行審題，弄清題意，帶著問題閱讀短文，從短文的細(xì)節(jié)中找出細(xì)節(jié)理解問題的答案。對于主旨大意題要根據(jù)文章的中心思想確定。6．閱讀下面短文，根據(jù)短文內(nèi)容判斷句子正誤。 Dear Dr. Green, My relationship with my mother is worse and worse now. It seems she39。s never tired of talking. She talks here and there, day and night. More seriously, I feel like we don39。t have much in mon. She doesn39。t always understand what I39。m trying to say. What should I do?Yours,Jim Dear Jim, I know how you feel. It39。s not easy being your age. And it39。s not easy being a mother, either. It39。s mon for kids to have trouble talking with parents, and talkative mothers are not new to teenagers. But remember, she39。s nagging （嘮叨） you because she just wants what39。s best for you. Talking is her way to show love and care. And she also wants to know more about you. After a day39。s work, she39。s tired, too. But she will never be tired of caring about you. Kids should learn to understand and care about parents. In my opinion, it39。s helpful to share school life with her. Then, you talk and she listens. Doing some housework together with her is another good way for you two to know each other better. And if possible, often tell her your feelings about the things around you. Always keep in mind: be polite and patient.Yours,Dr. Green（1）Jim wrote to Dr. Green because he had trouble getting on with his friends. （2）In Jim39。s eyes, his mother doesn39。t always understand what he39。s trying to say. （3）Dr. Green thinks it39。s mon for kids to have trouble talking with their parents. （4）In Dr. Green39。s opinion, talking is a way for mothers to relax after a day39。s work. （5）Dr. Green explains three reasons for mom39。s nagging and offers three suggestions. 【答案】 （1）0（2）1（3）1（4）0（5）1 【解析】【分析】主要講了Jim給格林先生介紹自己的問題是與媽媽的關(guān)系越來越糟，格林先生給Jim回復(fù)告訴他解決辦法。 （1）細(xì)節(jié)題。根據(jù)My relationship with my mother is worse and worse ，而不是朋友，故選錯(cuò)誤。 （2）細(xì)節(jié)題。根據(jù)She doesn39。t always understand what I39。m trying to ，故選正確。 （3）細(xì)節(jié)題。根據(jù)It39。s mon for kids to have trouble talking with parents可知對于孩子們來說和父母交流有困難是普遍的，故選正確。 （4）細(xì)節(jié)題。根據(jù)After a day39。s work, she39。s tired, too. But she will never be tired of caring about ，故選錯(cuò)誤。 （5）細(xì)節(jié)題。根據(jù)第二段可知講了三個(gè)原因：父母想給孩子最好的，展示愛和關(guān)心，想更多了解你。第三段講了三個(gè)方法：分享學(xué)校生活，做家務(wù)，告訴父母自己的情感，故選正確。 【點(diǎn)評】考查閱讀理解，主要考查細(xì)節(jié)題，注意從文中仔細(xì)尋找答案。7．閱讀下列短文，從每題所給的A、B、C三個(gè)選項(xiàng)中選出最佳答案。 If you look at the top of your phone, you39。ll usually see a little symbol that says 3G or 4G. The G stands for the generation （代） of your mobile network. But the