8A U4知识点

8A Module 2 Unit 4 Everyone’s language I.主要词汇： A.写出下列重要单词的中文： 1.divide (v.) __________ 2.degree (n.) __________ 3.especially (adv.) __________ 4.calculate (v.) = count _________ calculation (n.) _________ calculator (n.) _________ 5.brain (n.) __________ 6.part (n.) __________ 7.language (n.) __________ 8.nearly (adv.) = almost __________ 9.system (n.) = a group of things that work together __________ 10.invent (v.) = make for the first time ______ invention(s) (n.) ______ inventor (n.) ______ 11.develop (v.) = make…bigger, better and stronger ________ development (n.) ________ 12.abacus (n.) = an old form of calculator __________ 13.accurate (a.) = without mistakes = correct __________ accurately (adv.) __________ 14.electronic (a.) ______ electron (n.) ______ electric (a.) ______ electrical (a.) ______ 15.powerful (a.) = strong __________ power (n.) __________ 16.whole (adj.) __________ 17.lifetime (n.) = time that somebody lives __________ 18.against (prep.) _____