单词 | need do sth; need to do sth; (sth) need doing; (sth) need to be done |
释义 | need do sth; need to do sth; (sth) need doing; (sth) need to be done ❖ need do sth的主语为人,意为“需要做某事”,这里的need为情态动词,其否定句和问句的构成方法与can相同,而且也无单复数的变化。如:He need go. 他需要去。 ◇ He needn't go. 他不需要去。◇ Need I go? 我需要去吗? ❖ need to do sth意思同need do sth,但这里的need为实义动词,其本身有单复数变化,否定句和问句需要借助助动词do/does。如:He needs to go. 他需要去。 ◇ He doesn't need to go. 他不需要去。 ◇ Do I need to go? 我需要去吗? ❖ (sth) need doing的主语多为物,意为“需要(被)做”,这里的need为实义动词,doing表达被动的含义,与 (sth) need to be done同义。如:The bag needs washing (=to be washed). 这个包需要洗了。 |
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