单词：context-free grammar
单词：context-free grammar 相关文章
Male: I think we better 1) review. Female: Yup good idea. Male: OK, the most important rule, the one that all the others serve to protect and 2) execute is that verbs and their subject must agree. Sin
疯狂英语2002年
Making Comparisons Female: Now we know that the English language is 1) set up for maximum 2) clarity. We also know that it’s important to make sure that all the units you’re talking about agree. M
疯狂英语2002年
Pronouns Male: OK, you got your verbs, you got your nouns, and you got your pronouns. Then there are your 1) modifiers like your adjectives, adverbs and prepositions. Female: This half-hour, we’ll d
疯狂英语2002年
Parts of Speech Female: Parts of speech are what we call the basic building blocks of language. They are all words or at least made up of words, but they all play different roles in the sentence. The
疯狂英语2002年
Grammar! Why is English grammar so confusing? I studied grammar for many years at school and I still dont understand when to use a tense. Is it the simple present or the present perfect? Whats the difference? My teacher tells me to keep visiting gram
听一分钟英文-G
Grammar and US Presidential Elections: Part Two When politicians give speeches, they talk about any number of things, such as their beliefs, personal history, or opinions on major issues. Politicians have to be careful about how they present their id
2016年VOA慢速英语(十一)月
天轮到汤姆和丹尼尔值日，他俩加快步伐来到了教室。汤姆负责擦黑板，而丹尼尔负责扫地。来看看他们做得怎么样吧。 Listen Read Learn Daniel: Don't talk too much, Tom. We are on duty today, we should hurry up. Tom: OK. (Daniel and Tom reach the classroom.) D
英语口语大赢家
Grammar! Why is English grammar so confusing? I studied grammar for many years at school and I still dont understand when to use a tense. Is it the simple present or the present perfect? Whats the difference? My teacher tells me to keep visiting gram
纯正英语一分钟
March 4 is a very important day for all language students. It is National Grammar Day (NGD). This is the day for you to be extra careful with your grammar in class. It is also a good day to promise yourself to make your grammar better. This day is no
英语课程学习计划和讲义
Grammar Girl here. Today I'm going to play two listener comments that will lead us to a discussion of wordiness and idioms. Wordiness First, here's Tod in Canada from the todbits.com website: Can you help me correct people? Everyone that I know seems
英语语法 Grammar Girl
Grammar Girl here. Today I'm going to play two listener comments that will lead us to a discussion of wordiness and idioms. Wordiness First, here's Tod in Canada from the todbits.com website: Can you help me correct people? Everyone that I know seems
英语语法 Grammar Girl
Grammar Girl here. Today's topic is how to correct other people's grammar. Dr. David asked about how he can correct other people's grammar without losing friends or sounding like a snob. A couple of people, whom I won't name, asked how to deal with b
英语语法 Grammar Girl
For VOA Learning English, this is Everyday Grammar. Today we have a special guest host. Betty Azar is the most successful writer of grammar textbooks in the world. Generations of English learners will recognize her best-selling book Understanding and
2018年VOA慢速英语(九)月
Everyday Grammar: The Sounds of Grammar with Betty Azar Today we have a special guest host. Betty Azar is the most successful writer of grammar textbooks in the world. Generations of English learners will recognize her best-selling book Understanding
2015年VOA慢速英语(八)月
Everyday Grammar: 3 Grammar Rules That Are Dying For VOA Learning English, this is Everyday Grammar. Today we have good news for English learners. Just as words come and go in English, so do grammar rules. Today we will show you three difficult gramm
2015年VOA慢速英语(十一)月
Wish You Knew Better Grammar? For VOA Learning English, this is Everyday Grammar. In English, wish is a powerful word for expressing your dreams, hopes and desires. Here are some examples: We wish you the best. Her mother wishes they would get marrie
2016年VOA慢速英语(三)月
National Grammar Day Is Here! Robert Lowth, bishop of London in the 18th century, wrote a book of grammar rules that are still used today. What will you be doing on Friday? How will you have spent your day? Do you have trouble understanding these que
2016年VOA慢速英语(三)月
An April Fools' show in which Will Ross from 118 Migration impersonates Grammar Girl. Grammar Girl here... This show is also sponsored by Grammar Girls Quick and Dirty Tips for Better Writing. I've hidden a golden bookmark in five of the copies that
英语语法 Grammar Girl
Grammar Girl here. The holidays are upon us, so it's time to answer questions about how to write greeting cards and party invitations. Here's Elaina: Hi. I have a question about the plural form of last names. For example, if the last name is Alvarez,
英语语法 Grammar Girl
hug: How do you learn English grammar? The purpose of learning grammar is to help learners to have a better understanding of the language. It is no use remembering grammar rules by rote because there are no rules without exceptions. It is sensible to
英语学习方法