字幕列表 影片播放 列印英文字幕 Welcome to this lesson just a warning this lesson is going to be a little academic It is intended for high intermediate to advanced students This lesson will give you the tools you need to take 2000 words and turn the into more than 15 000 words Trust me I did it in university Actually, this is the first in a series of lessons in which you will learn how to create new words and understand words that you have never seen before After this lesson You will know how to describe the structure of a word and you will have the vocabulary that you need to take yours to the next level we will cover the terms 'morpheme' 'root' 'affix' 'prefix' 'suffix' 'grammatical suffix' 'derivational suffix' and 'word family' The first word we'll cover is morpheme This is a word that is used in linguistics It is used to describe a group of sounds that is meaningful For example, The word 'morpheme' has two morphemes in it 'morph-' and '-eme' 'morph-' means shape and '-eme' means meaningful We know that they are separate meaningful units because they can be added to different words while having the same meaning For example, 'morph-' is used in the words 'polymorph' an organism that can take many forms 'metamorphosis' the process of changing form or shape 'morphology' the study of morphemes 'morph' this is a verb that means to change shape 'morphogenesis' the origin and development of biological forms etcetera The list goes one '-eme' is a technical is a technical morpheme it is only used in linguistics One of the words that uses it is 'phoneme' 'phone-' means sound and '-eme' means meaningful So a phoneme is a meaningful sound in a language all words are made of morphemes English uses two types of morphemes Roots and affixes roots and affixes Roots can exist independently They do not need to be added to anything else to be used in a sentence For example, 'eat' If you try to separate 'ea' or 't' They have no meaning on their own Therefore, 'eat' is a root There are two types of affixes prefixes and suffixes Prefixes are added to the beginning of a root a suffix is added to the end It is possible to have several affixes added to one root For example, the latin root 'civ' or 'civis-' means 'citizen', a person who is a member of a state many affixes can be added onto it For example, '-il' This gives us the word 'civil' it has three meanings One is belonging to the affairs of a people of a state For example, 'civil law' These are the laws that govern citizens as opposed to members of the military it can also mean polite if we add the prefix 'un-' to create the word 'uncivil' This means not polite His behavior was truly uncivil with the word civil you could add the suffix '-ize' meaning to make or become and create the word civilize which means to make more culturally advanced adding the suffix '-ed' to this creates the word 'civilized' means being in a culturally advanced state 'uncivilized' means not being culturally advanced and it goes on, we could create many more words the point is that many roots can take many affixes and suffixes can be added to other suffixes to create even more words Let's slow down for a minute There are actually two kinds of suffixes Grammatical and derivational First, we'll look at grammatical suffixes Grammatical suffixes do not change the class of a word So they will not change a verb to an adjective or a verb to a noun They simply add grammatical information a few examples are... the plural '-s' one banana two bananas the possessive '-'s' John's banana's the third person '-s' John eats banans These are not all of the grammatical suffixes but I hope it's enough to help you understand what they are do not change the class of a word derivational suffixes do For example, the adjective 'quik' can have '-ly' added to it to create the adverb 'quickly' here are two example sentences He had a quick snack That's an adjective He ate it quickly That's an adverb Learning how to use these suffixes is one of the keys to speaking English fluently Before we finish there is one more important idea for us to look at and that is the word family A word family is all of the words that can be made from a single root Take a look at this verb 'expect' We can make the noun 'expectation' We could also make an adjective, 'expectant' or the adverb, 'expectantly' Here's another fun word, 'explode' we could make the noun, 'explosion' and the adjectives, 'exploded', 'explosive' and 'explodable' There is also an adverb, 'explosively' let's take a look at the noun 'shape' there is also a verb, 'shape' this means to give shape to something there are other nouns, 'shaper', 'shapliness', and 'shapelessness' Then we have the adjectives 'shapeable' 'shaped' 'shapely' and 'shapeless' Here's a quick summary of what we've learned in this lesson you've learned about morphemes which are a meaningful group of sounds we've also looked at two types of morphemes in English The root and the affix There are two types of affixes Prefixes and suffixes Prefixes are added to the beginning of a word and suffixes are added to the end Again, there are two types of suffixes Grammatical and derivational Grammatical Affixes do not change the class of a word Derivational suffixes, on the other hand, do change the word's class Finally, all the different words that can be created by adding affixes to a root are called a word family Mastering word families is one of the keys to English fluenct Well, that's it folks Have a great day!
B2 中高級 英語詞彙。詞根、前綴和後綴 (English Vocabulary: Roots, Prefixes and Suffixes) 1614 157 VoiceTube 發佈於 2021 年 01 月 14 日 更多分享 分享 收藏 回報 影片單字