1、动词时态、语态和主谓一致（2）1.The students have been working hard on their lessons and we believe their efforts___________（reward) with success inthe end.【答案】will be rewarded【解析】句意为：学生们一直在努力学习功课，我们相信他们的努力最终会获得成功。根据语境可知，此处表述的是将来会发生的事，应用一般将来时。且 their efforts和 reward之间为被动关系，应用被动语态。故填 wil
2、l be rewarded.2.The parents________(make) changes to their previous education methods these days,of whose negative effect theybegin to be aware.【答案】are making【解析】句意为：家长们近日来正在改变他们以前的教育方法，他们开始意识到那些方法的负面影响。根据后面的时间状语 these days和语境可知，此处表述正在进行的情况，应用现在进行时。故填 are making3. A gener
3、al rule to go by is that by the age of 50,half of the population_______（lose) the color in 50 percent of theirhair.【答案】will have lost 【解析】句意为：要遵循的普遍规律是，人到了50岁时，有一半人的头发会变白，他们有50%的头发会失去颜色。根据语境可知，此处表述的是将来的情况；根据句中的时间状语by the age of 50可知，此处应用完成时。故填 will have lost.4.Linda,toget
4、her with her brothers,________（spend)the holiday in Chile when the strong earthquake broke out.【答案】was spending【解析】句意为：当强震发生时，琳达和她的兄弟们正在智利度假。根据句的 together with 可知，此处考查主谓一致，并遵循“就远原则”，谓语动词的数应与Linda的数保持一致。结合句中的broke out可推知是过去发生的事情，同时根据固定句型sb.be doing sth.when...可知，此处应用过去进行时。
5、故填 was spending5.During the last two years,an examination of national dietary regulations_______（conclude) that a day withoutbreakfast is bad for our health.【答案】has concluded 【解析】句意为：在过去的两年里，一项全国性饮食规定的审查已经得出结论：一天中若不吃早餐会损害我们的健康。根据时间状语 During the last two years 可知，此处应用现在完成时
6、，谓语动词的数应与句子主语 an examination 保持一致，故填 has concluded.6.To protect the rare birds better,scientists________（chart) the changes in their number in the past decade.【答案】have been charting【解析】句意为：为了更好地保护这种珍稀鸟类，过去十年里科学家们一直在跟踪记录它们的数量变化。根据时间状语 in the past decade和句意可知，此处强调这一动作自过去延续到
7、现在，并可能一直延续下去，故用现在完成进行时。7.At that time,only her head and the top of her green apron____________（be) visible over the cart loaded with cleaningsupplies.【答案】were【解析】句意为：当时，隔着装满清洁用品的手推车，只能看到她的头和绿色围裙的上半部分。根据At that time 可知，此处表述的是过去的情况，应用一般过去时。且主语 her head 和 thetop of her green
8、 apron 是两种不同的事物，故谓语动词应用复数。故填 were.8.During my childhood,my parents used to say,“Helping others＿（
