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noisy adj. 吵鬧的nearly ;差不多 stranger n. 陌生人mon ;通常的;普通的 18. choice n. 選擇;抉擇lie v. (lay, lain)躺 attention n. 注意力;留心scare ;使恐懼 believe heart n. 心;心臟 heart attack until ......時(shí);直到......為止 care for 照顧;照料what’s more 更有甚者;更為重要的是 have no choice but to do 除了......別無(wú)選擇run free (動(dòng)物)四處自由走動(dòng);自由自在 lie around 無(wú)所事事地混日子;懶散度日keep sb. from (doing) sth. 阻止某人做某事 (be) faithful to... 對(duì)......忠誠(chéng)的die of keep on 繼續(xù)Unit 7unknown damage ;破壞alien crash ;相撞astronaut ;航天員frightened ;害怕的receive discover ;找到;發(fā)覺(jué)hill ;小山 terrible ;令人級(jí)不快的;可怕的loud ;大聲的 fear ;懼怕explore creature ;動(dòng)物bush feather quiet wonder ;想弄明白round ;球形的 line ;線條refuse tent spread v.(spread, spread)張開(kāi) knife mark ;記號(hào)explain ;說(shuō)明desert ;荒漠 pleased ;滿意;愉快keep quite 保持安靜 in fear 恐懼地;害怕地because of 因?yàn)?agree with 同意;贊成as soon as possible 盡快 disagree with 不同意;持不同意見(jiàn);有分歧landing site 降落場(chǎng) Unit 8Internet n.(國(guó)際)互聯(lián)網(wǎng) apology post n.(發(fā)在網(wǎng)上的)帖子 excuse 。辯解past hydrogen 。氫氣present wide 。寬闊的shape ;外形recently 。最近c(diǎn)afe ;小餐館 forever certainly ;肯定;當(dāng)然 mix v.(使)混合in a second 片刻;瞬間 mix with (使......與......)混合remend electronic satisfy ;使?jié)M足 relax 。休息while ......期間。當(dāng)......時(shí)候 technology 。工藝software in the present 現(xiàn)在virus at the front 在前面prepare on the Internet 在互聯(lián)網(wǎng)上prepare for 準(zhǔn)備 in the shape of ......的形