【正文】 oxygen.( ) 4． Iron reacts with cold water.( ) 5． Copper reacts most when heated in oxygen.( ) Step 2 Careful－ reading Ⅰ .Choose the best answers according to Passage A. 1． The first sentence “It is hard to think of a world without metals.” will make us think ________. A． metals make up the world B． metals play a greatly important role in the world C． there would be no world if there were no metals D． it is difficult for us to live in the world of metals 2． The table in the passage is arranged in order of ________. A． metal kinds B． reaction activities C． values of metal D． the first letters of the words 3． An oxide is ________. A． a new kind of metals B． a kind of gas C． a product of the reaction D． a factor (因素 ) of a chemical reaction 4． According to the table, which metal is most suitable to make our daily kitchenware (廚房 )? A． Zinc. B． Iron. C． Copper D． Magnesium. Ⅱ .Choose the best answers according to Passage B. 1． Which is NOT the apparatus that is required in the experiment of “Iron in dry air”？ A． Cotton wool. B． Oil. C． Iron nails D． Test tube holder. 2 ． Which is required as one of the apparatus in the experiment of “Iron in ordinary water”？ A． Oil. B． Cotton. C． Bunsen burner D． Test tube holder. 3． The purpose of these two experiments is ________. A． to find out how iron reacts with water and air B． to find out how important iron is C． to find out how to do the experiment of iron39。 英語 路漫漫其修遠(yuǎn)兮 吾將上下而求索 外研版 The earth is _________________________ the moon.(倍數(shù)表達(dá)法 ) Two－ thirds of the earth39。 搭配 expand on /詳述某事 You mentioned the need for extra funds. Would you expand on that? 你曾提到需要額外資金 ， 詳細(xì)說明一下好嗎 ？ 單詞積累 expansion n. [U]膨脹；擴(kuò)張 expansive adj. 廣闊的；遼闊的 即學(xué)即用 語法填空 —Our pany has ________(expand) its business in Stanford by opening a new branch office there. —Congratulations! 答案： expanded 題意： ——“ 我們公司在斯坦福新創(chuàng)立了一家分公司 ， 拓展了業(yè)務(wù) 。 答案： substance 3． contract vi.amp。如： electrical engineering電機(jī)工程學(xué)。 ② electric electric lights電燈 ③ electrical electrical equipment電設(shè)備 5． react vi. (化學(xué) )反應(yīng)；反對 ， 反抗 ① When we use metals, it is important to know how they react with different substances, for example, water and oxygen. 當(dāng)我們使用金屬時(shí) ， 了解金屬和諸如水 、 氧氣之類的不同物質(zhì)如何發(fā)生反應(yīng)很重要 。 知識拓展 in the form of 以 ?? 的形式 form the habit of 養(yǎng)成 ?? 的習(xí)慣 be in form 處于良好的競技狀態(tài) be out of form 處于不良的競技狀態(tài) fill out/in a form 填表格 辨析： form, shape (形狀 ) ① This painting shows a good sense of form. 這幅畫的構(gòu)圖不錯(cuò) 。 in the form of “ 以 ?? 的形式 ” ， 符合題意 。 辨析： ordinary, mon, usual ① His mother is an ordinary teacher. 他的母親是一位平凡的教師 。 ” ordinary“ 普通的；平常的 ” ， 強(qiáng)調(diào)一般性和普遍性 ， 符合題意 。 ② Can anybody think of a way to raise money? 誰能想出集資的辦法 ？ 辨析： think of, think about, think up與 think over 短語 意義 think of 考慮；想起，記得；對 ?? 有某種看法 think about 審查；考慮 (尤其指計(jì)劃、建議、觀點(diǎn)等，看其是否相宜、可行等 ) think up 想出；想到 think over 仔細(xì)想；思考 即學(xué)即用 用 think of, think up, think about或 think over填空 ① Are you still ________ moving? ② We have to ________ his health before we offer him the job. ③ What do you ________ the play? ④ ________ what the teacher said in class before you do it. ⑤ I39。 歸納拓展 in good order 秩序井然 out of order 無序的 in order of 按 ?? 順序 keep order 維持秩序 ② The room is out of order. Please keep it in good order. 這房間亂七八糟 。put...in order“ 把 ?? 按順序排列 ” ， 符合題意 。 即學(xué)即用 用所給詞的正確形式填空 ① 五分之二的糧食被用來飼養(yǎng)牲口 。 ④ It39。m being more and more interested in... 1)“ 比較級＋ and＋比較級 ” 表示 “ 越來越 ?? ”