1 Arrive at the classroom well before the test ____ so you dont feel rushed,A beginning B has begun C will begin D begins2 It is desirable that water used for drinking _____ pure.A were B should be C is D ought to be

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1 Arrive at the classroom well before the test ____ so you dont feel rushed,A beginning B has begun C will begin D begins2 It is desirable that water used for drinking _____ pure.A were B should be C is D ought to be

1 Arrive at the classroom well before the test ____ so you dont feel rushed,A beginning B has begun C will begin D begins2 It is desirable that water used for drinking _____ pure.A were B should be C is D ought to be
1 Arrive at the classroom well before the test ____ so you dont feel rushed,
A beginning B has begun C will begin D begins
2 It is desirable that water used for drinking _____ pure.
A were B should be C is D ought to be

1 Arrive at the classroom well before the test ____ so you dont feel rushed,A beginning B has begun C will begin D begins2 It is desirable that water used for drinking _____ pure.A were B should be C is D ought to be
第一题就是一般现在时啊.
第二题主要是两个的区别
1.ought to & should 意思大致相同,但有细微差别
ought to 多反映客观情况,表示根据法律,义务”应当”,比should 语气强
should 表示主观看法,一种建议,劝说
2.ought to 当应该讲时,比should 语强. 当必须讲时,没有must语气强
3.ought to的否定式
needn't 表示某动作或事情没有必要做
oughtn't to 表示某动作或事情是错误的于 shouldn't 大体一致,但语气更强
4.表示可能性,推测)可能,该等意思时,两者的意思相同
I think they shoule/ought to be there by now.
我想他们现在改在那里了.

第一题: test是单数,谓语用第三人称单数。这个句子只是叙述一个常识,用一般现在时。
第二题: water是不可数名词,选项C排除,喝的水应当是纯净的,这只是说一个事实,不必用被动语态were,A排除。还有这只是主观上说,用should 就可以,ought to是带感情色彩的。
所以选B...

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第一题: test是单数,谓语用第三人称单数。这个句子只是叙述一个常识,用一般现在时。
第二题: water是不可数名词,选项C排除,喝的水应当是纯净的,这只是说一个事实,不必用被动语态were,A排除。还有这只是主观上说,用should 就可以,ought to是带感情色彩的。
所以选B

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第一句话还原就是 Arrive at the classroom wel so you dont feel rushed before the text begins。首先so 和 before 都是连词,前后接句子,所以把句子独立出来就是the text begins。 又因为现在时态,所以用一般现在时。
第二句强调一种呼吁的态度,所以用should应该做的意思...

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第一句话还原就是 Arrive at the classroom wel so you dont feel rushed before the text begins。首先so 和 before 都是连词,前后接句子,所以把句子独立出来就是the text begins。 又因为现在时态,所以用一般现在时。
第二句强调一种呼吁的态度,所以用should应该做的意思

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