Hi guys.，接下来我们就来聊聊关于for 与since的用法?以下内容大家不妨参考一二希望能帮到您!
for 与since的用法
Hi guys.
嗨，伙计们。
My name is Jiri.
我叫 Jiri。
There are many challenges we language learners have to face when studying English grammar.
在学习英语语法时，我们语言学习者必须面对许多挑战。
Today, we'll look a tense which many of us struggle with, the present perfect simple.
今天，我们会学习一个很多人都觉得很难的时态，现在完成时。
This is the second video in a series.
这是一个系列视频中的第二个视频。
You can also watch part one by clicking on the link in the description below.
你也可以通过点击下面描述中的链接观看第一部分。
But before I begin, don't forget to like the video and subscribe to the channel.
但是在我开始之前，别忘了给这个视频点赞并订阅频道。
That's a great picture.
这是一张很棒的照片。
How long have you been in a band?
你加入乐队多久了？
I've been in a band...
我加入乐队......
I've been in a band for four years.
我已经加入乐队四年了。
Hey, James.
嘿，詹姆斯。
I know this one.
我认识这个人。
How long have you known James?
你认识詹姆斯多久了？
I've known James...
我认识詹姆斯......
I've known James since 2011. Wow.
我从 2011 年就认识詹姆斯了。哇哦。
Have a look at this sentence again.
再看看这个句子。
Do we know when I joined the band?
我们知道我什么时候加入乐队的吗？
Yes, four years ago.
是的，四年前。
Does this sentence imply that I am in the band now?
这句话是在暗示我现在还在乐队吗？
Am I still in the band?
我还在乐队吗？
Yes, I am.
是的，我还在。
He is.
他还在。
We use the present perfect simple to talk about unfinished actions and states that started in the past and continue until now.
我们用现在完成时来谈论未结束的动作和状态，这些动作和状态从过去开始，一直持续到现在。
We've been good friends since high school.
我们从高中开始就是好朋友了。
We use how long and present perfect simple to ask about a period which continues until now.
我们用 how long 加现在完成时来询问一段持续到现在的时间。
How long have you had this t-shirt?
这件 T 恤你买了多久了？
I think you've had it for a long time.
我想你已经买了有很长时间了。
Use "for" for a period of time.
一段时间就使用 for。
I've known my partner for my whole life.
我认识我的搭档一辈子了。
I've known my partner for two years.
我认识我的搭档两年了。
I've known my partner for five minutes.
我认识我的搭档才五分钟。
Use since for a specific point in time.
对于特定的时间点使用 since。
I've lived on my own since 2015. I've lived on my own since I was 19. I've lived on my own since today.
自 2015 年以来，我一直独自生活。我从 19 岁开始就独自生活。从今天开始我就一个人住了。
Just joking.
开个玩笑。
Mom, I'm coming home.
妈妈，我要回家了。
In this game, your task is to describe what you see by using for or since.
在这个游戏中，你的任务是用 for 或 since 来描述你所看到的事物。
How long have you had that hairstyle?
你留那个发型多久了？
I've had this hairstyle for five years.
这个发型我留了五年了。
How long have you been awake?
你醒了多久了？
I've been awake since early morning.
我从一大早就醒了。
How long have you studied English?
你学英语多长时间了？
I've studied English for a very long time.
我学英语已经很长时间了。
Mastering the present perfect simple can help you become a more confident speaker and writer of English.
掌握现在完成时可以帮助你在读写英语时更自信。
It can also help you achieve a better score in the B1 Preliminary or B2 First for Schools exams.
它还可以帮助你在 B1 预科或 B2 学校考试中获得更好的成绩。
Do you find our videos useful?
你觉得我们的视频有用吗？
Write to me in the comments below.
请在下面的评论区回复。
Thank you and see you next time.
谢谢，下次见。
Bye.
再见。
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