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the work, but all of us thought it was a great help to the farmers. 直到完成工作他們才回家。 15. ________the Olympic flame was lit on the top of Mount Qomolangma on May 8, 2021, the world cheered. A. When B. Since C. While D. As 答案 A 解析 句意: 2021年 5月 8日當(dāng)奧運(yùn)圣火在珠穆朗瑪峰峰頂點(diǎn)燃時(shí),全世界都?xì)g呼起來。 so far as據(jù) ?? ; in case以防; even if即使。 10. Good ways of doing things mean saving time, and ________it’s necessary for us to find them. A. otherwise B. however C. still D. therefore 答案 D 解析 句意:做事情的好方法意味著節(jié)省時(shí)間,因此我們有必要找到它們。 7. ________heavy the snow was, many people still wanted to go home for the Spring Festival. A. How B. However C. Although D. As 答案 B 解析 句意:無論雪有多大,仍有許多人想回家過年。 4. It will be half a year________I e back. A. after B. since C. when D. before 答案 D 解析 句意:半年后我才能回來。 Period Five Grammar amp。 hardly 置于句首,主句部分倒裝,把助動(dòng)詞 had提到主語之前。 unless 除非,不符合句意。 for the first time第一次,不能引導(dǎo)從句; at a time 一次; at one time 曾經(jīng); the first time 可引導(dǎo)時(shí)間狀語從句,意為 “ 第一次做 ?? 時(shí) ” 。 so long as只要,引導(dǎo)條件狀語從句,符合句意。 whenever 無論何時(shí)和though“ 盡管 ” 都引導(dǎo)讓步狀語從句; for作連詞,表示原因。 (1)They didn’ t go home until they finished their work. (2)Not until they finished their work did they go home. (3)It was not until they finished their work that they went home.