【文章內(nèi)容簡(jiǎn)介】 y 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(chǎng)）improper use of backpacks. 可知不正確使用背包可能誰(shuí)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(shū)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(shū)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(duì)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(píng)】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(wèn)題閱讀短文，從短文的細(xì)節(jié)中找出細(xì)節(jié)理解問(wèn)題的答案。對(duì)于主旨大意題要根據(jù)文章的中心思想確定。5．閱讀下列短文，從每題所給的幾個(gè)選項(xiàng)中，選出最佳選項(xiàng)。 What subject do you worry about the most at school? Many students worry about math. Some students can39。t sleep well the day before a math exam. Others may feel very nervous during the exam itself. But there might be a way to make the subject less stressful（壓力大的）. For people who are worried about math, posture （姿勢(shì)） makes a big difference, Erik Paper from San Francisco State University told the Daily Mail. That39。s right – sitting up straight can help you do better on math exams. Scientists tested 125 college students. They asked them to do a simple math exam while sitting in a slumpedover （趴倒的） posture, or sitting up straight. After the test, 56 percent of students said the exam was easier to do if they were sitting up straight. Slumping over is a defensive（戒備的） posture. It can bring about bad memories in the body and brain. This can stop you from thinking clearly, Paper said. Students who were not nervous about taking the math exam did not necessarily benefit（受益） from better posture. But they did find that doing math while slumped over was more difficult, Science Daily reported. Good posture isn39。t just helpful for taking math exams. Sportspeople, musicians and public speakers can all benefit from better posture. When you feel stressed out, you can also try to sit up straight or stand tall. It can help you feel more certain and focus better.（1）What posture can make people feel less stressed during math exams? A.Sitting up straight.B.Hanging your head.C.Lying on your back.D.Raising one hand.（2）What did the scientists ask the college students to do during the test? A.To do situps.B.To count numbers.C.To think carefully.D.To sit in different postures.（3）How many students in the test benefited from the better posture? A.All the 125 students.B.Less than half of them.C.56 percent of them.D.None of the students.（4）The fourth paragraph is written to explain . A.why slumping over makes exams harder to doB.why slumping over is bad for one39。s healthC.why some people slump over during examsD.why people are nervous during math exams（5）Which of the following is the best title for the passage? A.Slump over to Take ExamsB.Sit up to Do MathC.Better Posture for Nervous StudentsD.Good Advice for Better Exams【答案】 （1）A（2）D（3）C（4）A（5）B 【解析】【分析】本文介紹姿勢(shì)不僅有助于參加數(shù)學(xué)考試。運(yùn)動(dòng)員、音樂(lè)家和演說(shuō)家都可以從更好的姿勢(shì)中受益。當(dāng)你感到壓力大的時(shí)候，