专题四 语法填空 有提示词类必考点(一)——谓语动词技法一 慧眼识别标志词在题干中，yesterday, tomorrow, always, since, in the past few years, so far等都是判定动词时态常用的标志性时间状语，做题时可以通过寻找时间标志词来判定时态。1．(2018·全国卷Ⅱ)Diets have changed in China — and so too has its top crop. Since 2011, the country (grow) more corn than rice.解析：has grown 由时间状语“Since 2011”可知， 这里要用现在完成时。主语“the country”是第三人称单数，故谓语动词用 has grown。2．(2018·江苏高考改编)Hopefully in 2025 we will no longer be e-mailing each other, for we (develop) more convenient electronic communication tools by then.解析：will have developed 句意：在 2025 年我们有希望不用再互相发电子邮件了，因为到那时我们将已经研制出更方便的电子交流工具了。根据句中的“ in 2025”以及“by then”可知，空格处应用将来完成时。3．(2017·全国卷Ⅲ )My dad thinks I should take the offer now.But at the moment, school (come) first.解析：comes 由时间状语 at the moment 可知，这里是指现在发生的事情，因此用一般现在时。4．(2015·全国卷Ⅱ)This cycle (go) day after day: The walls warm up during the day and cool off during the night and are thus always a timely offset (抵消) for the outside temperatures.解析：goes 主语是 This cycle, 且此处 day after day 表示常态，一直是这种情况，所以用一般现在时。5 ． In 1969, the pollution was terrible along the Cuyahoga River near Cleveland, Ohio. It (be) unimaginable that it could ever be cleaned up.解析：was 根据空前“In 1969, the pollution was terrible”可知，叙述的是过去发生的事情，因此用一般过去时；此外，主语是 It，因此此处谓语用 was。6．Besides highspeed rail, China (improve) people’s lives in many other innovative ways over the last decade.解析：has improved over the last decade 表示“在过去的十年”，常和现在完成时连用，主语是 China，故谓语动词用 has improved。7．(...
