【正文】 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. 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.Poor treatment for backs.C.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。①②④B.②③④D.About 4kg.B.About 10kg.D.Some problems that teenagers face in their study at school.B.The good influence that backpacks have on your healthD. （1）細(xì)節(jié)理解題。故選C。根據(jù) 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. 需要的時候才背書包，即 ③ ；Pack heaviest objects close to the body, and place little ones outside, away from the back. （3）細(xì)節(jié)理解題。The total weight of the filled pack should be no more than 10 to 15 percent of the wearer39。 這個男孩四十公斤，可知他最多背15%40kg=6kg，故選B。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建議，故選D。先閱讀短文，理解短文大意。對于主旨大意題要根據(jù)文章的中心思想確定。 When it es to helping developing countries, we often think about offering money in order that they can build schools and hospitals, buy food and medicine, or find clean water supplies. These seem to be the most important basic needs in their lives. However, it39。 A man called Nicholas Negroponte invented a cheap laptop puter, which he decided to invent after he visited a school in Cambodia. The laptop which Mr. Negroponte has designed is not the same as the normal one that you can buy in the shops. One difference is that it will be covered in rubber so that it is strong and won39。 This special laptop puter will cost less than 100 US dollars and Mr. Negroponte wants to produce as many as 15 million laptop puters in the first year. The idea is that these puters will help the children39。s education they should help people to find their own solutions to their problems in the long term. Another idea to help children in developing countries is to recycle old mobile phones so that they can be used again. In the UK. And probably in many other countries too, millions of mobile phones are thrown away every year. The waste crested by throwing away thee old phones is very bed for the environment, so it seems to be an excellent idea to achieve two important goals at the same time. We will reduce the waste we produce and help others. In other words, we will be able to kill two birds with one and that is always a good thing. （1）The underlined phrase wind up in paragraph 2 means吹風(fēng)給……上發(fā)條搖上利用空氣……使……（2）The laptop puter that Mr. Negroponte has designedwill be damaged much easier than the normal oneB.is cheap and can run with extra powerD.s own solutions（3）According to the passage，what benefit can we get from recycling old mobile phones? A.We can help children in developing countries reuse the old mobile phones.C.It not only reduces the waste produced by developed countries but also helps the children in developing countries.（4）Mr. Negroponte39。illustrate the kindness of people in the developed countriesB.show how to find business opportunities in developing countriesD.We need to help people in developing countries to help themselves，not just throw money at the problem.B.We should think about giving help to developing countries more often.D.s education immediately.【答案】 （1）B（2）C（3）D（4）D（5）A 【解析】【分析】主要講了Nicholas Negroponte發(fā)明了一種便宜的手提電腦和循環(huán)使用手機來幫助發(fā)展中國家。根據(jù)give it extra power when ，是通過特殊的把柄來產(chǎn)生能量，即通過上發(fā)條，故選B。根據(jù)A man called Nicholas Negroponte invented a cheap laptop puter和give it extra power when ，并且有額外的能量，故選C。根據(jù)We will reduce the waste we produce and help ，而且?guī)椭税l(fā)展中國家，故選D。根據(jù)第一段We have to e up with better ，故選D。根據(jù)第一段可知幫助發(fā)展中國家時不僅僅是提供給他們金錢，而且要通過更好的方法來讓他們自己幫助自己，故選A。6．閱讀短文，從每題所給的A、B、C和D四個選項中,選出最佳選項。 As we all know, English is an important subject in middle school. Everyone knows that they must learn English well, but some people don39。 The biggest problem is people39。t say things correctly or that they will look foolish so that they don39。t be afraid of being laughed at. Only if we aren39。 The fastest way to learn something is to do it again and again until you get it right. Learning English needs practice. Don39。 The best way to learn English is to have a good environment. Take notes in English, put English books around your room, listen to English radios, watch English news, movies and TV programs. Speak English with your friends whenever you can. The more English materials that you have around you, the faster you will learn it.t much fun. However, by doing exercises and taking tests you can really improve your English. If you never test yourself, you will never know how much you are making progress.（1）The biggest problem of learning English is ________. A.being afraid of being laughed atC.making mistakes（2）The fastest way to learn English well is ________. A.listening to it every dayC.going to a foreign country（3）To create a good environment, you need to do many things except ________. A.listening to English radiosC.speaking English with your friends only in class（4）According to the passage, English exercises and tests are ________. A.not helpful at allC.not important（5）How many suggestions on how to learn Eng