After 1.
Usage summary
1. When used as a preposition and used with a period of time to mean "after", pay attention to its difference from in: after means after a period of time from the past time, usually used with the past tense; And after a period of time from now, it means:
He came back two days later. He will be back in two days. He will be back in two days. He will be back in two days.
But if after is used with little time, it can be used with past tense or future tense: will he come back after 4 o? He came back after four o'clock. He will come back after next month. He will come back after next month.
Note: if the main clause uses the future tense (or contains the meaning of the future), the adverbial clause of time should use the simple present tense (indicating the meaning of the future), and the future tense cannot be used directly: I will leave when he comes back.
Zheng: Me? I'll leave when he comes back. I'll leave when he comes back.
3. Used as adverbs, meaning "later" and "after a while", usually placed after adverbs indicating time: soon, two days later.
After all, after all: I was right after all. After all, I was right.
After all, he? Only six years old. After all, he is only six years old.
2.2 usage summary. earlier times
Unit 15, dialogue skills and workbook reading in senior three textbooks has the following sentences:
⒈The store was very successful, but it was not until about 60 years later that people began to buy jeans, not only for work, but also for fashion.
Anyway, it may not be long before it is developed like other mountainous areas in China, such as Sichuan, Xinjiang and Yunnan. With the emergence of more facilities, the price will almost certainly fall.
It involves the usage of before, which is summarized as follows. Can be used as a preposition
She lived here before the war. She lived here before the war. 4) refers to the front position, such as:
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We knelt in front of grandma? We knelt at grandma's grave.
3) refers to the order or arrangement, such as:
Your name is ahead of mine on the list. Your name is in front of me on the list. 4.) In front of someone, such as:
She said it in front of the witness. He said it in front of witnesses. Second, as a conjunction
Its basic meaning is "Qian", which can be flexibly translated into "Cai", "Qian", "Er" and "Jiu" according to different contexts. The specific usage is as follows: 1) used with the modal verb can/could.
At this time, although the clause is in a positive form, it is translated into "I haven't had time to interrupt" according to Chinese expression habits. For example, he has measured me before I can interrupt. He measured me before I could get in a word.
Before she could move, she heard a loud noise, which grew louder and louder and became a terrible horror. Before she could step, she heard a loud noise, followed by a terrible rumble.
It took us four days and four nights to see land. We sailed for four days and nights before we saw land.
We waited for a long time before the train arrived. We waited a long time for the train to arrive. 3.) Used in negative sentences, emphasizing that the time and distance expressed by the main sentence are short, or the energy spent is small, translated into "less than ………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………
We didn't? He felt tired before running a mile. We ran less than a mile and he was tired.
4. When the main clause contains semi-negative adverbs such as hardly and calculate, it can be translated as "Jiu … Jiu". At this time, the main clause should be in the past perfect tense, and the clause can replace before, for example, before the bell rang/we just arrived at school. (5) Sometimes it means "would rather"
Me? I'll kill myself before I apologize to him. I would rather die than apologize to him. Used in the sentence pattern before It+be/take+ time period+.
In this sentence pattern, it can be divided into two situations according to the tense of the main sentence.
If the main clause is the general future tense and the subordinate clause is the general present tense, if the main clause is the affirmative sentence, it means "how long will it take"; If the main sentence is negative, it will be translated as "it won't take long". It will take two weeks for everything to return to normal. It will take two weeks for everything to return to normal.
This situation will take many years to improve. This situation may take many years to improve.
It won? We will meet again soon. We will meet again soon.
At this time, if the main clause is the general past tense, then the clause is also the general past tense. If the main clause is affirmative, it will take "how long"; if the main clause is negative, it will take "not long". It took me some time to realize the truth.