【正文】 people used ________ (eat) low173。 2． The river ________ runs through the centre of the city brings us lots of pleasure. A． where B． what C． when D． that 答案與解析 D 句意：穿過市中心的那條河給我們帶來很多歡樂。人們認為它含有大量的鐵元素 ，其實這是因為一個研究小組的疏忽造成的錯誤。ll keep your child mentally and physically active the whole day through while pushing buttons, experimenting, and building. When everyone is tired, enjoy a fun family science show, monly found in these museums. 4． What can kids do at a Youtheater? A. Look at rock collections. B. See dinosaur models. C. Watch puppet making. D. Give performances. 答案與解析 C 在 Go to a Youtheater 一欄中提到 “puppet making” ， C項正確。on science. Visit one of the many hands173。 6． You are supposed to ________ the project till now. A． finish B． finishing C． have finished D． having finished 答案與解析 C 句意：到目前為止你應該完成這項工程了。 used to do sth.“ 過去常常做某事 ” ，其否定形式為 usedn39。m rather ________ (吃驚的 ) that you haven39。 5． Americans take in too much fat in ________ form of chocolate. 答案與解析 the in the form of“ 以 ?? 的形式 ” 。 5． Mr. Green is ________ his great success in scientific researches. A． proud of B． different from C． embarrassed about D． tired of 答案與解析 A 句意：格林先生為自己在科研方面所取得的巨大成就而感到自豪。s favorite writers, and even musical performances and other arts. Head to a natural history museum. This is where kids can discover the past from dinosaur models to rock collections and pictures of stars in the sky. Also, ask what kind of workshops and educational programs are prepared for kids and any special