Two high school grammar questions and two high school English grammar questions

The first empty in the first question, vegetable table is a countable noun when the meaning of vegetables is used, and usually there is no need to add article modification before the plural of countable nouns;

The second question, area is mostly used as a countable noun, a piece of green space, the number of tables is one, and a is used to modify; Second, reality is both a countable noun and an uncountable noun, and when it indicates the fulfillment of a specific wish, it is used as a countable noun, and becoming a reality is also a fixed usage.

Simple, 1 uncountable plural noun without definite article the, a good service: a greatest service, 2area, reality are singular and countable nouns, of course, use the indefinite article a.

Finally, if you still encounter similar mistakes in the future, I suggest you buy a copy of Longmen "Grammar" to read, a very thin volume, basically high school grammar is almost over.

When the table is a class, the add singular nouns or plural nouns, here the nouns, the green places of the table, a reality.

Guangyu network, there is a special explanation of grammar.

founded in 1636,harvard is one of the most famous university in the united states.

Why can't it be being found or founding or it was founded?)

The main thing is to see whether it is an active relationship or a passive relationship.

by that i mean...The key to judging whether to use a past or present participle as a definite is the relationship between the noun and the action.

the olympic games are held ever four years.

That's the example sentence on our book ==. Reason:

Subject-verb agreement - proper noun as subject:

Nouns such as book titles, aphorisms, country names, etc., which appear in the form of negative numbers, are negative in form, but singular in meaning, and singular in predicate verbs.

Individual proper nouns are considered plural according to [customary]. The book only lists Olympic Games. The exam will definitely not be so biased.

what we need are good textbooks

Subject-verb agreement – the clause is the subject.

The subject clause is the subject, and the predicate verb of the subject clause is often singular; However, when the referent is negative, the predicate verb is plural. Such as:

what we need is more time.

what we need are good teachers

are olympic as the subject, and the predicate is plural.

are what The predicate of the predicate coincides with the number of nouns of the predicate.

I don't know, keep asking.

the olympic games "are" held every four years.There are many events, more than one, with plural.

what we need "are" good textbooks subject clause, the real subject is after are, so the plural is used.

Hope satisfied, good luck :)

The first should be that games are plural, and the Olympics are multi-sport games with different games.

The second is consistent with the following expression, good textbooks, so use are

The front is, because the Olympic games are a specific whole; The second is are, because the real subject refers to good textbooks

The are series is plural.

is we need is the singular number of thing.

1."the olmpic games"It refers to the Olympic movement as an activity, not all kinds of sports, so it is used in the singular form of passive voice.

So it's is2The doctor is not a person, so the plural, of course, also uses are. The epigram echoes here.

1. The Olympic Games refers to a series of activities, so the plural is used; If it's The Olympics, it's singular.

2. are consistent with textbooks. . . The object and subject are interchangeable here.

First of all: Sentences used to express commands, requests, exhortations, warnings, prohibitions, etc. are called imperative sentences, and imperative sentences are most often used to express commands, so they are also often called imperative sentences in school grammar.

And this sentence is a first, third-person imperative sentence that says at the beginning of the sentence I have never seen water so fast (i've never seen anyone run so fast) after the next one- said how how how David.

And then look at the four answers, all of which have just wacth, which means, "Look," and this look is to let the second person look omit from the sentence. In imperative grammar there is ( Imperative sentences are usually omitted because the object (i.e., the subject) is the second person.

The verbs of imperative sentences are all in the simple present tense, and the end of the sentence uses a full stop to indicate the end. From this it can be seen that he is a suggestive imperative and a second person ellipsis so it is an imperative sentence.

And since the imperative sentence uses the simple present tense, b c d is excluded and a is chosen

The dash is followed by a new sentence, and the verb at the beginning of the sentence is an imperative sentence, indicating a command or a request to be done.

For imperative sentences, there is no tense and cannot begin with an infinitive or an ing;

The dash is followed by an imperative sentence, and the imperative sentence is the verb in the original form, so the infinitive of bcd is incorrect, the ing form, and the perfect form of the past participle are incorrect.

To do strongly adjusts habitual behaviors or states in the past, but there are no such behaviors or states anymore. Therefore, the connotation of this phrase is a contrast between the past and the present. So it's better to use did.

2.If you choose a, this sentence is not valid. No sentence can have two predicate verbs. So this must be a clause, which can be seen as a definite clause. When is an adverb that can be translated as in that time.

No more means that there is no longer a negative and not more means no more.

The first question is that it lookes as if in the 18th century is a clause, there is only one predicate in the clause, so the predicate cannot be filled, and abc is a predicate, so abc is excluded.

The second question, during that time, is used as a phrase followed by a comma. When time is more like a conjunctive used in a sentence. I feel so.

No more means no more.

not more is not more than; At the most; Not better than....More....meaning.

1. DID is a vague representation of what has been done in the past, which can represent all past behaviors, while used to be is a specific expression that indicates that something has been done in the past, which is obviously inappropriate to use here, and the meaning of the sentence seems to be as it seems in the 18th century, so the did here actually represents the past tense of look.

2. Please note that this is a non-restrictive definite clause, but I personally think that it makes no sense to choose C, and the correct solution should be during which

In the first word, uesd to be indicates a habitual behavior or state in the past, but now there is no such behavior or state, so the rebuilding of a building should not belong to this concept. So the past action is done with did

Use where: When the word you want to modify is an abstract place adverbial such as situation stage, an aspect of something, etc., use where. In fact, where here is used as a relational adverb, guiding the definite clause and modifying the situation.

It's basically a formula, 1+1=2,..

Choose c Sometimes where=on which but where is very irregular, basically used in colloquial language, in formal English, the definite clause is generally which who or preposition+which who, but the specific collocation upstairs has nothing to do with the BC option, right......where is the same as on which in the case of informal.

Select CThere is a situation that appears, meaning in. In this case, this is a specific pairing.

based on ......Based on (fixed phrase).