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认识句子碎片

句子碎片指还没有形成句子的语言片段。可能缺少动词或者主语。根据视频学习如何将句子碎片转化成完整的句子。

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视频字幕

hello grammarians David here along with my cousin Beth who also happens to be a teacher say hello to the people Beth hi people so tonight we are going to talk about sentence fragments and Beth you cover these in classes that you teach could you tell me please what is a sentence fragment great a sentence fragment is when a student writes a sentence and they think it's a sentence but it's one that tells maybe what happens but doesn't include who or it might include who but doesn't tell what happens so sentence fragments don't tell the whole story the way I would put it is that a fragment is a piece of a sentence that cannot stand on its own but nevertheless incorrectly ends with a period so the whole story for instance would be a fragment this is a fragment it could be a sentence but it's missing something Beth what is it missing what is the whole story missing well we've got a subject but we don't have what we would call a predicate in other words so we're giving a subject but we're not telling what happens to that subject right so the whole story began 10 years ago and now we've got our subject here the whole story and now we've given it a predicate similarly if we just had this predicate and we just said it began 10 years ago well that's not enough to be a sentence either that's also a fragment because now we've got a predicate but no subject right we're telling you about something but we don't know what so in order to be a sentence you need to have both a subject and a predicate so you need to have a thing like a noun or a pronoun and then you have to have something happen to that noun or pronoun or something performed by that noun or pronoun right so like the pancakes period is not it's not a sentence but pancakes were delicious is so you've got a part that names that subject and then you've got the part that finishes the thought that's your predicate let's look at another example all right what about because of the snowstorm is that a sentence Beth nope why not well you don't what tell what happened because of that snowstorm so this is what we'd call not even a I mean it's not even a dependent clause right if this thing doesn't have doesn't really have a subject or a verb it's it's really just a prepositional phrase so because of the snowstorm something could happen but we don't know what that is so because of the snowstorm we stayed home from school so we've got this this sentence here this independent clause right we stayed home from school and that's a subject and a predicate and if it were just stayed home from school period that wouldn't be a sentence and if it were just we period that also wouldn't be a sentence and if it were just because of the snowstorm period that wouldn't be a sentence it doesn't have enough support to stand on its own but altogether because of the snowstorm comma we stayed home from school period that is a sentence so in order to make sure that you're building sentences you have to make sure that what you've got is a subject and a predicate you've got to have a subject and a verb put them together slap on a period you've got a sentence you've got some good you can learn anything Dave it out and Beth out