【文章內(nèi)容簡(jiǎn)介】 ler flat against the table. Make sure to have as little air as possible under the paper so that the fold line of the newspaper is at the ruler. Then quickly strike the end of the ruler hanging off the edge of the table. If you strike it quick enough, the ruler will break near the table edge. What?s going on? The Earth is covered in a layer of air that is nearly 80 miles thick and at sea level exerts or “pushes” hard almost 15 pounds of pressure per square inch. That means that a full sheet of newspaper laid out flat has nearly 9, 300 pounds of air above it. When you break the ruler above, you are able to break it because of the “heavy” air pushing down on the paper while you quickly strike the ruler. At first, the table is pushing back on the paper, and if you move the ruler quick enough, other air around the edges of the paper can?t get under the paper fast enough, so you are trying to lift that 9, 300 pounds with the ruler！ Some air gets under the paper, but not enough, so the ruler breaks. 【 文章大意 】 本文介紹了一個(gè)生活小實(shí)驗(yàn) , 證明在我們生活的這個(gè)地球上 , 氣壓無(wú)處不在 。 1. By doing the experiment, we may realize ______ . A. that air exits everywhere B. why there are directions C. that we live with air pressure D. how air helps on Earth 【 解析 】 選 C。 考查細(xì)節(jié)理解 。 文章 Purposes部分直接點(diǎn)明了做這個(gè)小實(shí)驗(yàn)的目的：證明在我們生活的這個(gè)地球上 , 處處都有氣壓 。 由此判斷選 C。 2. How many steps are there in this experiment? A. 2. B. 3. C. 4. D. 5. 【 解析 】 選 B。 考查細(xì)節(jié)理解 。 從 Procedure中的 First, Next和 Then可知這個(gè)小實(shí)驗(yàn)一共三步 , 首先將一把很薄的尺子放在桌子上 , 大約一半的尺子懸在桌子外沿 , 然后將一張舊報(bào)紙蓋在桌子上 , 并盡量確保報(bào)紙下面的空氣很少 , 最后使勁打擊尺子懸空的那頭 , 如果速度足夠快 , 那么尺子就會(huì)在沿著桌子的地方被打斷 。 3. The underlined word “exerts” probably means ______ . A. covers pletely B. advocates actively C. influences gradually D. presses heavily 【 解析 】 選 D。 考查猜測(cè)詞義 。 劃線(xiàn)詞所在句子表示 , 在海平面每平方英寸上面就有大約 15磅的氣壓 , 再結(jié)合 or后面的“ pushes” hard可知 , 劃線(xiàn)詞的意思和 D項(xiàng)最接近 。 4. The ruler breaks under a quick strike mainly because of ______ . A. the air pressure on the newspaper B. the heavy weight of the newspaper C. the heavy weight of the flat table D. the strong power used on the ruler 【 解析 】 選 A。 考查推理判斷 。 最后一段解釋了在使勁敲打尺子懸空的那頭時(shí)它會(huì)斷裂的原因 ——報(bào)紙表面的氣壓非常大 。 Ⅴ . 任務(wù)型閱讀 ［ 2020鐵嶺模擬］ 根據(jù)短文內(nèi)容 , 從短文后的選項(xiàng)中選出能填入空白處的最佳選項(xiàng) , 選項(xiàng)中有兩項(xiàng)為多余選項(xiàng) 。 On a typical hot August day in Xianyou County, Fujian Province, Zeng Demei, a retired worker in his seventies, hurries down a busy street. In his hand is a black leather bag. Zeng opens his bag, taking out two forms. 1 Each of the forms contains detailed information of a student. On his arrival two hours later a woman greets him and leads him to her office where another man is waiting. They are the two village officials. They inspect the forms handed to them by Zeng and immediately recognize the girls. 2 . “It?s a pity but it doesn?t matter. ” says Zeng, who wastes no time in deciding to look for the remaining child, Su Qiuju. After half an hour, they stop outside a small house made of mud brick. A middleaged man and a girl in a faded pink dress greet them. Su Qiuju is eight years old. She was forced to drop out of school after both her parents died. She is now living with her uncle who cannot afford his own children?s education. However, the year of education Su Qiuju did plete was a successful one. 3 When they are about to leave, Zeng says, “I must find a supporter for this girl to sponsor her education. ” Zeng has made it his retirement task to help children plete their schooling. Back in 1999, Zeng took part in a campaign started by the local women?s anization to help students from poor families. 4 His task had begun and since then he has spent his time persuading his friends and neighbors and others to donate money. “To me, children?s education is the most important. 5 I have to find sufficient funding before the school opens in September. ” When asked how long he will keep up his vital work as the munity?s guardian angel, he has a simple reply. “Not until my eyes can?t see, and my feet can?t move. ” A. They were having problems with their schoolwork. B. These are for the two girls he?s going to visit this morning. C. They live in a small village not very far, though only one of the girls is still living at home. D. She displayed a talent for handwriting, writing her threecharacter name neatly and beautifully. E. The thought of students dropping out of school bothers me so much that I can?t get to sleep at night. F. Of course, some people question why I would want to give up my retirement to go to so much trouble. G. He was so overe by the tough situation of many poor children that he donated all his money to help out a girl. 答案： 1~5. BCDGE Ⅰ . 單詞拼寫(xiě) 1. Equipped（配備） with modern facilities, today?s libraries differ greatly from those of the past. 2. After taking the medicine, please drink more boiled（煮過(guò)的） water. 3. Hearing the bad news, everyone present had an astonished（吃驚的） expression. 4. We all know that a balanced（平衡的） diet is of great importance to our health. 5. At that time they transported wood by floating（使漂浮） them down the river. 6. His speech caused powerful reactions（反應(yīng)） among the audience. 7. He studied hard, aiming（目標(biāo)是，旨在） at passing the entrance exam. 8. The day was a mixture（混合物） of the sun and clouds. 9. From what he says I conclude（得出結(jié)論） that he hasn?t much interest in it. 10. In the 1980s, the economy contracted（收縮） and many small businesses failed. Ⅱ . 完成句子 1. 吃一塹，長(zhǎng)一智。 Every failure one meets with adds to one?s experience. 2. 在語(yǔ)言教學(xué)方面有許多進(jìn)展。 There are many developme