新理念英語(yǔ)閱讀:初中2年級(jí)(第4冊(cè))
定 價(jià):13 元
- 作者:佚名
- 出版時(shí)間:2011/2/1
- ISBN:9787544619257
- 出 版 社:上海外語(yǔ)教育出版社
- 中圖法分類(lèi):G634.413
- 頁(yè)碼:91
- 紙張:膠版紙
- 版次:1
- 開(kāi)本:32開(kāi)
《新理念英語(yǔ)閱讀:初中2年級(jí)(第4冊(cè))》是上海外語(yǔ)教育出版社引進(jìn)改編的一套內(nèi)容豐富、圖文并茂、分級(jí)清晰、訓(xùn)練目的明確的英語(yǔ)讀物。本套書(shū)有以下特點(diǎn):內(nèi)容豐富:既有青少年感興趣和熱衷的偵探、科幻、探險(xiǎn)等讀物,又有包羅萬(wàn)象的科普類(lèi)讀物,有效兼顧文學(xué)性和科普性,是趣味性與知識(shí)性、想象與真實(shí)的完美結(jié)合。練習(xí)精煉:每個(gè)故事后都提供配套練習(xí),與中考閱讀類(lèi)題型接軌,是備戰(zhàn)中考不可或缺的材料。圖畫(huà)精美:色彩豐富、極具趣味性的插圖、照片和漫畫(huà)在輔助讀者閱讀的同時(shí),也讓讀者盡情享受前所未有的視覺(jué)盛宴。音頻支持:全套讀物提供語(yǔ)音純正、繪聲繪色、音效逼真的錄音,學(xué)生可根據(jù)需要在讀前或讀后訓(xùn)練自己的聽(tīng)力。
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答案
In their work on atoms, scientists wondered whatkept the electrons spinning around the nucleus. Theydiscovered that the force of attraction between thepositively charged protons and negatively chargedelectrons keeps the electrons spinning. This madesense to the scientists because they had observed thatpositively charged things and negatively charged thingsare attracted to each other.But, what really interested scientists about electrons isthat they can move between atoms and as a result, createelectricity.Today, scientists and engineers use this knowledge tocome up with ways to get electrons to move betweenatoms to make new and amazing inventions that canmake our lives easier.