【文章內(nèi)容簡(jiǎn)介】 to the works of neurons (神經(jīng)元 ) in our brains, and when one tree is destroyed, it affects all. Simard talks about “mother trees” ， usually the largest and oldest plants on which all other trees depend. She explains how dying trees pass on the wealth to the next generation, transporting important minerals to young trees so they may continue to grow. When humans cut down “mother trees” with no awareness of these highly plex “tree societies” or the works on which they feed, we are reducing the chances of survival for the entire forest. “We didn39。t take any notice of it” Simard says sadly. “Dying trees move nutrition into the young trees before dying, but we never give them chance.” If we could put across the message to the forestry industry, we could make a huge difference towards our environmental protection efforts for the future. 25． The underlined sentence “the opposite is true” in Paragraph 2 probably means that trees________ . A． pete for survival B． protect their own wealth C． depend on each other D． provide support for dying trees 答案： C 詞義猜測(cè)題。從文中下一句的 “trees survive enough their cooperation and support , passing around necessary nutrition ‘depending on who needs it.’” 可知本題答案為 C項(xiàng)。 26． “Mother trees” are extremely important because they ________. A． look the largest in size in the forest B． pass on nutrition to young trees C． seem more likely to be cut down by humans D． know more about the plex “tree societies” 答案： B 推理判斷題。根據(jù)第四段第二句的 “She explains how dying trees pass on the wealth to the next generation transporting important minerals to young trees so they may continue to grow” 可知本題答案為 B項(xiàng)。 27． The underlined word “it” in the last paragraph refers to ________. A． how “tree societies” work B． how trees grow old C． how forestry industry develops D． how young trees survive 答案： A 詞義猜測(cè)題。第四段說(shuō)的是樹(shù)的社會(huì)系統(tǒng)，而第五段的第一句話的意思是：我們以前沒(méi)有注意到這個(gè)事情。故本題答案為 A項(xiàng)。 28． What would be the best title for the passage? A． Old Trees Communicate Like Humans B． Young Trees Are In Need Of Protection C． Trees Are More Awesome Than You Think D． Trees Contribute To Our Society 答案： C 主旨大意題。本文介紹了植物界的一種現(xiàn)象：樹(shù)和樹(shù)之間是相互依存的關(guān)系。母親樹(shù)會(huì)在臨死前把營(yíng)養(yǎng)傳給下一代讓它們繼續(xù)生長(zhǎng)。可知本題答案為 C項(xiàng)。 C When you are curious_about something and want to know more about it, you can use the way of asking questions. Asking questions is the first step to make discoveries and find interesting answers. The steps below can guide you during the research (研究 )． Step a note card or a piece of paper, write down the subject that you are interested in. Just get the main idea down. For example, you might write: Discover more about dinosaurs. Step 2: Next, stop and think for a moment about what you already know about your subject. List what you already know like the sentences below: 1. Dinosaurs lived long before human beings appeared. 2. Dinosaurs lived on the earth for more than 150 million years. 3. Some dinosaurs fed on plants, some on meat. Step 3： What can you do with what you want to learn? By asking questions. On your paper, start writing down questions about the dinosaurs as you think of them: 1. What39。s the best weather for dinosaurs to live in? 2. How many kinds of dinosaurs are there? 3. Have dinosaurs really disappeared? Step 4： Armed_with_your_list_of_questions,_you can now go to the nearest library or puter to begin your research. As you learn more about your subject, you39。ll probably discover some new questions. For example, you might discover that dinosaurs disappeared about 65 million years ago. Why? What happened？ Asking new questions can help you research your subject more widely. The next time you find something interesting to research, take time to anize(組織 ) your thinking by asking good questions. And remember learning more always brings more questions. 29． The underlined phrase“curious about” in the first paragraph means ________. A． worried about B． bored with C． eager to learn about D． ready to do 答案： C 詞義猜測(cè)題。由語(yǔ)境 “want to know more about it” 以及 “asking questions” 可推測(cè) curious about 意為 “ 對(duì) ?? 好奇 ” 。 30． When you do some research, you should take the following steps： ________. ①list what you want to know ②choose a research subject ③list what you already know ④discover new problems A． ④③①② B． ①④③② C． ②③①④ D． ③②④① 答案： C 細(xì)節(jié)理解題。綜合短文的四個(gè)步驟，可以看出首先要選擇一個(gè)研究課題，只有 C項(xiàng)的第一個(gè)步驟是此步驟。 31． What does the underlined sentence “Armed with your list of questions” mean? A． Putting your list of questions under your arm. B． Discussing your questions with your classmates. C． Writing down your list of questions. D． Taking your list of questions with you. 答案： B 細(xì)節(jié)理解題。由 Step 2中的第三條 “Some dinosaurs fed on plants, some on meat.” 可知，并不是所有的恐龍都以植物為主食，有些還吃肉。 32． The best title of this passage is ________. A． Discovering Dinosaurs B． Asking Good Questions C． Finding Subjects D． Having Interesting Answers 答案： B 主旨大意題。由最后一段歸納得知。最后一段主要闡述學(xué)得多問(wèn)題就多，應(yīng)該拿出時(shí)間來(lái)考慮一些高水平的問(wèn)題。 D In 1950 an ordinary but imaginative electrical engineer named Christopher Cockerell began an experiment that was soon to change the world. He came up with an idea to make boats go faster by using a vacuum cleaner(真空吸塵器 )． Using his wife39。s vacuum cleaner he was able to reverse(使倒轉(zhuǎn) )the motor so that it blew instead of sucking. The air that blew out beneath(在下面 )acted as a cushion(墊子 ) against surfaces. Years later, his principle (原理 )of cushioned air made it possible for the first hovercraft(氣墊船 )to be successfully built and tried out. A journey along the Amazon River proved to the world that the hovercraft was both wonderful and useful. The invention that began in the kitchen and the boatyard of an ordinary home led to a thousand other inventions. T