上几期学习了英语语法：短语be determined to, be forced to do sth的用法、短语be glad to, be happy to do sth的用法、短语be likely to, be obliged to的用法、短语be reluctant to, be unlikely to的用法关注微博：@读外刊学英语
短语的用法15. be willing to do sth愿意做某事用法：be willing to do sth是一个半助动词词组，其反义词组是be unwilling to。
例句1：Therefore, they are willing to sacrifice their own time, hobbies andinterests to provide better conditions for their children. (12月四级)
因此，他们愿意牺牲自己的时间、爱好和兴趣，为孩子们提供更好的条件。
结构分析：Therefore是连词, they是主语，are willing to sacrifice是谓语（are willing to是助动词词组，后接动词原形）， their own time, hobbies and interests是宾语，to provide better conditions for their children是宾语补语。
16. by the time等到，到……时候
用法：by the time一般用于一般将来时和将来完成时。
例句1：By the time you learn one program, it’s outdated.(12月六级)
当你学会一个程序的时候，它已经过时了。
结构分析：By the time you learn one program是时间状语从句, it是主语，is outdated是系表型谓语（系动词is+表语outdated）。
作业：1.句子结构、时态等分析；2.将英文译成中文。短语：by far迄今为止
用法：by far常与形容词、副词的比较级形式或是最高级形式连用。
例句1：By far the biggest type of momentum that comes into play when itcomes to changing our energy systems is economic momentum. (12月六级)
英语外刊，精读练习：1.句子结构、时态等分析；2.将英文译成中文。Sierra Leone’s President Julius Maada Bio has accused the political opposition of inciting “terrorist violence” after deadly disturbances linked to the coronavirus outbreak in the West African nation.【The Guardian】
