课时作业34 Unit 4 Sharing
Ⅰ.单项填空
1．The rivers have ________， so they will have to spend much money irrigating the crops.
A．dried up B．built up
C．broken up D．gone up
解析：句意：河水干涸了，他们只好花大量的钱来灌溉庄稼。dry up (指河流、井等)干涸；build up 逐渐增强，建立，开发；break up 打碎，分裂，解体；go up 上升，增长，升起。由句意可知A项正确。
答案：A
2．All the ________ blood must be tested for HIV and other infections, which is important for the patients.
A．determined B．donated
C．disabled D．displayed
解析：句意：所有的献血都必须接受艾滋病毒和其他传染病的检测，这对病人来说是很重要的。donated 捐赠的。determined 坚决的，有决心的；disabled 残废的，有缺陷的；displayed 展出的。由句意可知B项正确。
答案：B
3．(2013·浙江五校联考)A government official was murdered last Friday and the police are collecting information that is ________ to the case.
A．relevant B．similar
C. devoted D．addicted
解析：be relevant to“与……有关”，为固定结构。句意：一位政府官员上周五被谋杀；警察们正在搜集有关这个案件的信息。
