【正文】 shoulders. a heavy backpack forces the muscles and spine to balance the unequal weight. This may increase the possible back problems later in life.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.Here39。About 4kg.Some problems that teenagers face in their study at school.B.根據(jù) 這個男孩四十公斤，可知他最多背15%40kg=6kg，故選B。 Satellites: 40%B. Spaceships: 30%。B.D. （1）細節(jié)理解題。結(jié)合劃線單詞所在的句子 An explosion （爆炸） in space in 1999 made a cloud of 300,000 fragments, each at least 4mm in size 可知，在爆炸后產(chǎn)生的，體積為 at least 4mm 的最有可能是碎片。t be found until their children even grandchildren are born 可知，太空輻射對宇航員的危害會傳到他們孩子身上。 The American Computer amp。In New Jersey.C.名人錄C.10,000 （1）細節(jié)題。故publications是出版物的意思，故選C。 【點評】考查閱讀理解。 Each year, farmers grow millions of tons of rice.Corn.Bangladesh.. A.B.C.D. （3）看圖識圖題。s cold, but not colder than Antarctica or the Arctic Circle, for example. Gliese 581g is bigger than the Earth. A year on Gliese 581g is only 37 Earth days instead of 365. But astronomers do not think these are big differences and some of them think Gliese 581g will be a new Earth. However, Gliese 58Ig is twenty light years from the Earth.（1）What do astronomers have to find first before starting to look for a new place for humans to live？ A.discussing.D.根據(jù)First of all，astronomers look for a ，首先，天文學家找一顆行星，故選A。But where do astronomers start looking？現(xiàn)在，許多天文學家正在尋找新的星球和新的地方以供人類未來生活，但是從哪兒開始找呢？本文主要介紹了天文學家尋找新的星球供人類未來生活，即天文學家在尋找新的地球， 故選D。t, they were stuck right where they were. t be afraid of failure and keep on trying. （1）Why did the elephants never try to break the rope after they grew up? A.B.Because they thought they couldn39。killed （1）細節(jié)題。If we failed once, it doesn39。 In the summer between my first year and second year in college, I was invited to be an instructor（輔導員）at a high school camp. On the first day, when we were dancing and playing games, I noticed a boy under the tree who was small and thin. His shyness made him appear weak. I walked towards him, introduced myself and invited him to join in the activities and meet some new people. He quietly replied, No, I really don39。B.C. （1）推理題。根據(jù) Tommy mentioned you so many times. I want you to know that he went back to school and made new friends with confidence. You made a difference to Tommy during his last months 湯米多次提到你。 Girls39。 Eating rice dumplings is also a custom for Chinese people. The rice dumpling is a kind of food with different designs and styles. For thousands of years, the custom of eating rice dumplings has been popular in China and has spread to Korea, Japan and countries in Southeast Asia.（1）The Dragon Boat Festival is called ________. A. A long time ago, a married daughter would return to her parents39。 Dragon boat race 【點評】考查閱讀理解。根據(jù) invited him to join in the activities和 I tried again with the same invitation 可知， 作者邀請這個男孩參加了2次活動，故選B。to the writer. A.s mother was very D.Once.instructor本文涉及細節(jié)題、推斷題和主旨題三種?？碱}型，細節(jié)題要注意從文中尋找答案；推斷題需要聯(lián)系上下文，推斷出需要的信息；主旨題需要通讀全文，了解大意之后找出中心思想。because they believed they couldn39。Elephants should be set flee.B.B.s enough to hold them. As they grow up, they are conditioned to believe they cannot break tile rope. They believe it can still hold them, so they never try to break free. （3）詞義猜測題。There are planets similar to our Earth.C.The star is in a right position.B.C. 【點評】此題考查閱讀理解。故選B。C.Wheat. （5）主旨題。根據(jù) With Yellowstone National Park to the southThe American Computer amp。1,000the Gateway ArchC.本文考查細節(jié)題，詞義推斷題，推理判斷題和主旨題等?？碱}型，細節(jié)題要注意從文中抓住關(guān)鍵詞尋找答案；主旨題，詞義推斷題以及判斷題都需要通讀全文，了解大意之后找出正確選項。根據(jù)文中語句Scientists have found out that the radiation （輻射） is the greatest danger to spacemen in space 和第三段第一句 Space rubbish is also thought to be a great danger to spacemen 可知，本文講述了輻射和太空垃圾兩種對宇航員的危害物。根據(jù)文中語句 Scientists have found out that the radiation （輻射） is the greatest danger to spacemen in space 可知，太陽和其它星星的輻射對宇航員有危害（harmful）。The harm of the radiation may be found in the spacemen39。B.D.Space rubbish: 50%。 先閱讀短文，理解短文大意。 （3）細節(jié)理解題。 （1）細節(jié)理解題。B.B.①②④Poor treatment for backs.C. 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. Choose the right backpack. Forget leather （皮革）! It looks great, but it39。 and even hurt the spinal column（脊柱）This can cause muscle strain, headaches, back, neck and arm pain. （2）邏輯推理題，根據(jù) The farmers wear paper boots（靴子）in the snow. Nothing could be warmer. 可知芬蘭的農(nóng)民穿紙靴子保暖，故答案是C。C.made for children to play in or for homeless men to live inC.help the homeless peopleC. 2．閱讀理解故答案是A。A Different Lifestyle to KeepC.Online shopping causes more air pollution.C.t forget the harmful result it has caused to the environment.（1）The passage begins with several questions tos opinionD.Businesses need to build a store to sell the products.D.D. （5）篇章結(jié)構(gòu)題，通過閱讀發(fā)現(xiàn)第一二段是獨立的，接下來的三段是并列部分對于第二段進行論證，最后一段是總結(jié)性段落是對前面三段的總結(jié)，故答案是C。 The latest use of paper seems to be paper houses. These are not small houses for children to play in, but real, big houses for people to live in. You can buy a house with three rooms for about 500 dollars. You can put it up by yourself in a few hours, and you can use it for about five years.（1）Only half of the world39。to keep their feet warmD.B. （1）細節(jié)理解題，根據(jù) 本文涉及細節(jié)理解題和邏輯推理題。s some advice to help you carry backpacks fortably and safely.