Unit 2 How often do you exercise?

How often do you exercise? How often do you exercise? 你多久锻炼一次？

Section A

A 部分

Language Goal：Talk about how often you do things Language Goal：Talk about how often you do things 语言目标：谈论你做事的频率 对话 What do you usually do on weekends?
I often go to the movies. 你周末通常做什么？
我经常去看电影。


1a

Look at the picture. Make a list of the weekend activities. Look at the picture. Make a list of the weekend activities. 看这张照片。列出周末的活动清单。 短语 1. help with housework 1.帮助做家务


1b

Listen and write the activities next to the correct frequency words. Listen and write the activities next to the correct frequency words. 听录音，在正确的频率单词旁边写下活动。 录音对话 Reporter ：What do you usually do on weekends?
Girl    ：I sometimes go shopping.
Boy   ：I never go shopping. I usually watch TV.
Girl    ：I always exercise.
Boy   ：I often help with housework.
Reporter ：How about you?
Girl    ：I hardly ever watch TV. I always read.
Reporter ：Oh, why is that?
Girl    ：Oh, I don't know. I guess I just like books. 记者：你周末通常做什么？
女孩：我有时去购物。
男孩：我从不去购物。我通常看电视。
女孩：我总是锻炼。
男孩：我经常帮忙做家务。
记者：你呢？
女孩：我几乎从不看电视。我总是读书。
记者：哦，为什么？
女孩：哦，我不知道。我想我只是喜欢书。 短语 always(100%) exercise,
usually _________
often _________
sometimes _________
hardly ever _________
never (0%) _________ 总是（100%）运动
通常_________
经常_________
有时_________
几乎从来没有_________
从不（0%）_________


1c

Practice the conversation in the picture above. Then make your own conversations about what you do on weekends. Practice the conversation in the picture above. Then make your own conversations about what you do on weekends. 练习上图中的对话。然后就你周末做什么进行自己的谈话。 对话 A：What do you do on weekends?
B：I usually watch TV.
A：Do you go shopping?
B：No, I never go shopping. A：你周末做什么？
B：我通常看电视。
A：你去购物吗？
B：不，我从不去购物。


2a

Listen. Cheng Tao is talking about how often he does these activities. Number the activites [1 - 5] in the order you hear them. Listen. Cheng Tao is talking about how often he does these activities. Number the activites [1 - 5] in the order you hear them. 听程涛在谈论他做这些活动的频率。按照你听到的顺序给活动编号[1-5]。 录音对话 Reporter ：So, Cheng Tao, how often do you watch TV?
Cheng Tao ：Hmm ... about twice a week, I guess.
Reporter ：Uh-huh. And how often do you read?
Cheng Tao ：Oh, I read every day at school!
Reporter ：How often do you go to the movies?
Cheng Tao ：Uh ... let me see ... maybe once a month?
Reporter ：How often do you exercise?
Cheng Tao ：Oh, I exercise about three times a week.
Reporter ：How often do you shop?
Cheng Tao ：Shop? I shop about ... about twice a month. 记者：程涛，你多久看一次电视？
程涛：嗯。。。我想大约一周两次。
记者：嗯。你多久读一次书？
程涛：哦，我在学校每天都读书！
记者：你多久去看一次电影？
程涛：嗯。。。我想一下。。。也许一个月一次？
记者：你多久锻炼一次？
程涛：哦，我一周锻炼三次。
记者：你多久购物一次？
程涛：商店？我买了。。。大约每月两次。 对话 How often do you watch TV?
Twice a week. 你多久看一次电视？
一周两次


2b

Listen again. Match the activities in 2a with how often Cheng Tao does them. Listen again. Match the activities in 2a with how often Cheng Tao does them. 再听一遍。将 2a 中的活动与程涛的活动频率相匹配。


2c

How often do you do these activities? Fill in the chart and then make conversations. How often do you do these activities? Fill in the chart and then make conversations. 你多久做一次这些活动？填写图表，然后进行对话。 对话 A：How often do you watch TV?
B：I watch TV every day.
A：What's your favorite program?
B：Animal World.
A：How often do you watch it?
B：Twice a week. A：你多久看一次电视？
B：我每天都看电视。
A：你最喜欢的节目是什么？
B：动物世界。
A：你多久看一次？
B：一周两次。
Activities How often
watch TV every day
use the Internet
read English books
go to the movies
exercise


2d

Role-play the conversation. Role-play the conversation. 角色扮演对话。 对话 Jack  ：Hi, Claire, are you free next week?
Claire：Hmm ... next week is quite full for me, Jack.
Jack  ：Really? How come?
Claire：I have dance and piano lessons.
Jack  ：What kind of dance are you learning?
Claire：Oh, swing dance. It's fun! I have class once a week, every Monday.
Jack  ：How often do you have piano lessons?
Claire：Twice a week, on Wednesday and Friday.
Jack  ：Well, how about Tuesday?
Claire：Oh, I have to play tennis with my friends. But do you want to come?
Jack  ：Sure! 杰克 ：嗨，克莱尔，你下星期有空吗？
克莱尔：嗯 ... 杰克，下个星期对我来说很满。
杰克 ：真的吗？为什么？
克莱尔：我上舞蹈和钢琴课。
杰克 ：你在学什么舞蹈？
克莱尔：噢，摇摆舞。很有趣！我每周上一次课，每周一。
杰克 ：你多久上一次钢琴课？
克莱尔：一周两次，星期三和星期五。
杰克 ：那么，星期二怎么样？
克莱尔：哦，我得和朋友们一起打网球。但是你想来吗？
杰克 ：当然！


Grammar Focus

语法重点
What do you usually do on weekends? I always exercise.
What do they do on weekends? They often help with housework.
What does she do on weekends? She sometimes goes shopping.
How often do you go to the movies? I go to the movies maybe once a month.
How often does he watch TV? He hardly ever watches TV.
Do you go shopping? No, I never go shopping.


3a

Complete the questions with do or does. Then match the questions and answers. Complete the questions with do or does. Then match the questions and answers. 用 do 或 does 完成问题。然后匹配问题和答案。 短语
  1. How often does he play soccer?   a.Yes. She usually does.
  2. Do you drink milk?         b. Hardly ever. I don't like them.
  3. How often do they stay up late?   c. He plays at least twice a week.
  4. Does Sue eat a healthy breakfast?   d. No, they don't. They're too busy.
  5. How often do you eat apples?    e. Never. They always go to bed early.
  6. Do your parents play sports?    f. Yes, I do. Every day.
  1. 他多久踢一次足球？ a.是的。她通常这样做。
  2. 你喝牛奶吗？    b.几乎没有。我不喜欢它们。
  3. 他们多久熬夜一次？ c.他每周至少打两次球。
  4. 苏早餐吃得健康吗？ d.不，他们没有。他们太忙了。
  5. 你多久吃一次苹果？ e.从不。他们总是早睡。
  6. 你父母运动？    f.是的，我每天都这么做。


3b

Use the words given to write questions. Then ask and answer them with a partner. Use the words given to write questions. Then ask and answer them with a partner. 用给定的单词写问题。然后与合作伙伴一起询问并回答。


3c

What can you do to improver your English? Add more things to the chart. Then ask your classmates the questions and find the best English student. What can you do to improver your English? Add more things to the chart. Then ask your classmates the questions and find the best English student. 你能做些什么来提高你的英语水平？在图表中添加更多内容。然后问你的同学问题，找到最好的英语学生。 对话 A：How often do you read English books?
B：I read English books about twice a week. A：你多久读一次英语书？
B：我每周读两次英语书。


Section B

B 部分


1a

Match the words with the pictures. Match the words with the pictures. 把单词和图片搭配起来。 单词
  1. junk food
  2. milk
  3. fruit
  4. vegetables
  5. sleep
  6. coffee
  1. 垃圾食品
  2. 牛奶
  3. 水果
  4. 蔬菜
  5. 睡眠
  6. 咖啡


1b

Ask and answer questions. Use the words from 1a. Ask and answer questions. Use the words from 1a. 提问并回答问题。使用 1a 中的单词。 对话 A：How often do you drink milk, Liu Fang?
B：I drink milk every day.
A：Do you like it?
B：No. But my mother wants me to drink it. She says it's good for my health. A：刘芳，你多久喝一次牛奶？
B：我每天都喝牛奶。
A：你喜欢吗？
B：不。但是我妈妈要我喝，她说这对我的健康有好处。


1c

Listen to an interview about two people's daily habits. Circle your answer to each question. Listen to an interview about two people's daily habits. Circle your answer to each question. 听一个关于两个人日常习惯的采访。圈出每个问题的答案。 录音对话 Interviewer：Hi, Tina and Bill. Let's start with the first question. How often do you exercise?
Tina   ：Every day.
Bill     ：Hardly ever.
Interviewer：How often do you eat vegetables and fruit?
Tina   ：I eat vegetables and fruit every day.
Bill     ：I sometimes eat vegetables. But I never eat fruit.
Interviewer：OK. How many hours do you sleep every night?
Tina   ：Nine.
Bill     ：Me, too.
Interviewer：How often do you drink milk?
Bill     ：Never. I can't stand milk.
Tina   ：Oh, I love milk -- I drink it every day.
Interviewer：How often do you eat junk food?
Bill     ：I eat it three or four times a week.
Tina   ：I guess I eat it two or three times a week.
Interviewer：And how often do you drink coffee?
Bill     ：Oh, I drink coffee four times a day.
Tina   ：I never drink coffee.
Interviewer：Well, thank you very much.
Bill/Tina   ：You're welcome. 记者：嗨，蒂娜和比尔。让我们从第一个问题开始。你多久锻炼一次？
蒂娜：每天。
比尔：几乎没有。
记者：你多久吃一次蔬菜和水果？
蒂娜：我每天吃蔬菜和水果。
比尔：我有时吃蔬菜。但我从不吃水果。
记者：好的。你每晚睡几个小时？
蒂娜：九。
比尔：我也是。
记者：你多久喝一次牛奶？
比尔：从来没有。我受不了牛奶。
蒂娜：哦，我喜欢牛奶——我每天都喝。
记者：你多久吃一次垃圾食品？
比尔：我每周吃三四次。
蒂娜：我想我每周吃两三次。
记者：你多久喝一次咖啡？
比尔：哦，我一天喝四次咖啡。
蒂娜：我从不喝咖啡。
记者：非常感谢。
比尔/蒂娜：不客气。
Does Tina have good habits? Yes. No. I don’t know.
Does Bill have good habits? Yes. No. I don’t know.


1d

Listen again. Fill in the blanks in the survey. Listen again. Fill in the blanks in the survey. 再听一遍。填写调查中的空格。
Questions Tina Bill
1. How often do you exercise? every day
2. How often do you eat fruit?
3. How many hours do you sleep every night?
4. How often do you drink milk?
5. How often do you eat junk food?
6. How often do you drink coffee?


1e

Student A is the reporter. Student B is Tina or Bill. Ask and answer questions. Then change roles. Student A is the reporter. Student B is Tina or Bill. Ask and answer questions. Then change roles. 学生 A 是记者。学生 B 是蒂娜或比尔。提问并回答问题。然后更换角色。 对话 A：How often do you exercise?
B：I exercise every day.
A：And how often do you ...? A：你多久锻炼一次？
B：我每天都锻炼。
A：你多久 ...？


2a

Rank these activities according to how often you think your classmates do them（1 = most often, 6 = least often）. Rank these activities according to how often you think your classmates do them（1 = most often, 6 = least often）. 根据你认为你的同学做这些活动的频率对这些活动进行排名（1=最频繁，6=最不频繁）。 单词 __ watch TV
__ exercise or play sports
__ go to the movies
__ use the Internet
__ play computer games
__ go camping in the country __ 看电视
__ 锻炼或运动
__ 去看电影
__ 使用互联网
__ 玩电脑游戏
__ 去乡下露营


2b

Read the article and complete the pie charts on the next page. Read the article and complete the pie charts on the next page. 阅读这篇文章，完成下一页的饼图。 短文

What Do No. 5 High School Students Do in Their Free Time?


Last month we asked our students about their free time activities. Our questions were about exercise, use of the Internet and watching TV. Here are the results.

We found that only fifteen percent of our students exercise every day. Forty-five percent exercise four to six times a week. Twenty percent exercise only one to three times a week. And twenty percent do not exercise at all!

We all know that many students often go online, but we were surprised that ninety percent of them use the Internet every day. The other ten percent use it at least three or four times a week. Most students use it for fun and not for homework.

The answers to our questions about watching television were also interesting. Only two percent of the students watch TV one to three times a week. Thirteen percent watch TV four to six times a week. And eighty-five percent watch TV every day! Although many students like to watch sports, game shows are the most popular.

It is good to relax by using the Internet or watching game shows, but we think the best way to relax is through exercise. It is healthy for the mind and the body. Exercise such as playing sports is fun, and you can spend time with your friends and family as you play together. And remember, "Old habits die hard. "So start exercising before it's too late!

五年级的学生在空闲时间做什么？


上个月，我们向学生们询问了他们的业余活动情况。 我们的问题是关于锻炼、上网和看电视。 以下是结果。

我们发现只有百分之十五的学生每天锻炼。 45%的人每周锻炼4到6次。 20%的人每周只锻炼一到三次。 20%的人根本不锻炼！

我们都知道，许多学生经常上网，但我们感到惊讶的是，90%的学生每天都使用互联网。 另外10%的人每周至少使用三到四次。 大多数学生用它来娱乐，而不是做作业。

我们关于看电视的问题的答案也很有趣。 只有2%的学生每周看一到三次电视。 13%的人每周看四到六次电视。 85%的人每天都看电视！ 虽然许多学生喜欢看体育节目，但游戏节目是最受欢迎的。

通过上网或看游戏节目来放松是很好的，但我们认为最好的放松方式是通过锻炼。 它对身心都有益。 像运动这样的运动很有趣，你可以和你的朋友和家人一起玩。 记住，“旧习难改。” 所以开始锻炼吧，否则就太晚了！


2c

Read the article again and answer the questions. Read the article again and answer the questions. 再读一遍这篇文章并回答问题。 短语
  1. What percent of the students do not exercise at all?
  2. What percent of the students use the Internet every day?
  3. How often do most students watch TV? What do they usually watch?
  4. What does the writer think is the best way to relax? Why?
  5. Do you think the students at No. 5 are healthy? Why or why not?
  1. 百分之几的学生根本不锻炼？
  2. 每天使用互联网的学生比例是多少？
  3. 大多数学生多长时间看一次电视？他们通常看什么？
  4. 作者认为什么是最好的放松方式？为什么？
  5. 你认为五号的学生健康吗？为什么？


2d

According to the article and the pie charts, write sentences with the percentages using always, usually or sometimes. According to the article and the pie charts, write sentences with the percentages using always, usually or sometimes. 根据文章和饼图，用百分比写出句子，通常或有时使用。 短语
  1. 90%：Ninety percent of the students always use the Internet.
  2. 85%：_________
  3. 45%：_________
  4. 10%：_________
  5. 13%：_________
  6.   2%：_________


2e

Choose one of these free time activities or think of your own. Then ask your classmates how often they do this activity and make a pie chart. Show the pie chart to your class. Choose one of these free time activities or think of your own. Then ask your classmates how often they do this activity and make a pie chart. Show the pie chart to your class. 选择这些空闲时间的活动之一，或者想想你自己的。然后问你的同学他们多久做一次这个活动，并做一个饼图。向全班同学展示饼图。 单词 play computer games   read books   go shopping   draw pictures   play sports 玩电脑游戏；读书；去购物；画图；运动
How often do you … ? Names of classmates
1 - 3 times a week
4 - 6 times a week
every day


3a

Look at the information in the chart and complete the report. Look at the information in the chart and complete the report. 查看图表中的信息并完成报告。 短文 Jane is a 16-year-old high school student in the United States. *American Teenager* magazine asked her about her habits. Jane has a lot of good habits. She always exercises and she reads books every day. Also, she opten drinks juice and she hardly ever stays up late. However, she has some bad habits, too. She often watches TV for more than two hours a day, and she sometimes eats hamburgers. Her parents are not very happy because she hardly ever helps with housework and she never goes to the dentist for teeth cleaning. She says she is afraid! 简是一名16岁的美国高中生。《美国青少年》杂志询问了她的生活习惯。简有很多好习惯。她总是锻炼身体，每天看书。此外，她选择喝果汁，而且几乎从不熬夜。然而，她也有一些坏习惯。她经常一天看两个多小时的电视，有时还吃汉堡包。她的父母不太高兴，因为她几乎从不帮忙做家务，也从不去牙医那里清洁牙齿。她说她害怕！
Activities Days a year
Exercise 365
Read books 365
Watch TV for over 2 hours 320
Drink juice 210
Eat hamburgers 95
Help with housework 20
Stay up late 15
Go to the dentist 0


3b

Complete the chart with your own information. In the last column, use expressions like always, every day, twice a week and never. Complete the chart with your own information. In the last column, use expressions like always, every day, twice a week and never. 用你自己的信息填写图表。在最后一列中，使用“始终”、“每天”、“每周两次”和“从不”这样的表达式。
Activities How often?
Good habits
Bad habits


3c

Write a report about your good and bad habits. Say how often you do things. Use the report in 3a as an example. Write a report about your good and bad habits. Say how often you do things. Use the report in 3a as an example. 写一份关于你的好习惯和坏习惯的报告。说出你做事的频率。以 3a 中的报告为例。


4

Take the health quiz. Compare your results with your partner's. Who's healthier? Take the health quiz. Compare your results with your partner's. Who's healthier? 参加健康测试。将您的结果与您的合作伙伴进行比较。谁更健康？ 1. How often do you eat breakfast? 1. How often do you eat breakfast?

a. Never.
b. A few times a week.
c. Almost every day. 1. 你多久吃一次早餐？

a. 从不。
b. 每周几次。
c. 几乎每天。 2. How often do you eat fast food? 2. How often do you eat fast food?

a. Never.
b. A few times a week.
c. Almost every day. 2. 你多久吃一次快餐？

a. 从不。
b. 每周几次。
c. 几乎每天。 3. How often do you eat vegetables and fruit? 3. How often do you eat vegetables and fruit?

a. Never.
b. A few times a week.
c. Almost every day. 3. 你多久吃一次蔬菜和水果？

a. 从不。
b. 每周几次。
c. 几乎每天。 对话 4. How often do you exercise?

a. A few times a year.
b. A few times a month.
c. A few times a week. 4. 你多久锻炼一次？

a. 一年几次。
b. 一个月几次。
c. 每周几次。 对话 5. How many hours do you watch TV every week?

a. None.
b. One to four.
c. Five or more. 5. 你每周看电视多少小时？

a. 无。
b. 一到四。
c. 五个或五个以上。 对话 6. How many hours do you usually sleep at night?

a. Less than six.
b. Six or seven.
c. Eight or more. 6. 你晚上通常睡几个小时？

a. 少于六个。
b. 六个或七个。
c. 八个或八个以上。 对话 9 - 12 points：You're really healthy! Good for you -- and your health!
4 - 8 points：You're smart about your health most of the time.
0 - 3 points：You have to learn more about healthy habits. Don't worry -- you can do it! 9-12 分：你真的很健康！对你和你的健康都有好处！
4-8 分：大多数时候你对自己的健康很聪明。
0-3 分：你必须学习更多关于健康习惯的知识。别担心，你能行！


Self Check

1、Complete the chart with activities you do and don't do. What about your mother/father? 1、Complete the chart with activities you do and don't do. What about your mother/father? 1、用你做的和不做的活动来完成图表。你的母亲/父亲呢？
always usually often sometimes hardly ever never
My mother or father
2、Write five sentences using the information above. 2、Write five sentences using the information above. 2、利用上面的信息写五句话。
3、Fill in the blanks in the conversation. 3、Fill in the blanks in the conversation. 3、填空。 对话 A：What do Tom and Mike sometimes do on weekends?
B：They sometimes go to the museum.
A：How often do they go to the shopping center?
B：Hardly ever. Maybe about twice a month.
A：How often do they watch TV?
B：Mike never watches TV, but Tom watches TV every day.
A：Oh, I'm just like Tom. I often watch TV, too. A：汤姆和迈克周末有时做什么？
B：他们有时去博物馆。
A：他们多久去一次购物中心？
B：几乎没有。也许一个月两次。
A：他们多久看一次电视？
B：迈克从不看电视，但汤姆每天都看电视。
A：哦，我和汤姆一样。我也经常看电视。


Words and Expressions

单词汉语词性
housework家务劳动；家务事n.
hardly几乎不；几乎没有adv.
ever在任何时候；从来；曾经adv.
hardly ever几乎从不
once一次；曾经adv.
twice两次；两倍adv.
Internet（国际）互联网；因特网n.
program（= programme）节目n.
full忙的；满的；充满的adj.
swing摆动；秋千
（使）摆动；摇摆		n. 摆动；秋千
v.（使）摆动；摇摆
swing dance摇摆舞
maybe大概；或许；可能adv.
least最小；最少
最小的；最少的		adv. 最小；最少
adj. & pron.最小的；最少的
at least至少；不少于；起码
junk无用的东西；无价值的东西n.
junk food垃圾食品
coffee咖啡n.
health健康；人的身体（或精神）状态n.
result结果；后果n.
percent（= per cent）百分之 ...n.
online在线（的）；联网（的）adj. & adv.
television电视节目；电视机n.
although虽然；尽管；即使conj.
through以；凭借；穿过prep.
mind头脑；心智n.
body身体n.
such这样的；那样的；类似的adj & pron.
such as例如；像 ... 这样
together在一起；共同adv.
die消亡；灭亡；死亡v.
writer作者；作家n.
dentist牙科医生n.
magazine杂志；期刊n.
however然而；不过adv.
than（用以引出比较的第二部分）比prep. & conj.
more than多于
almost几乎；差不多adv.
none没有一个；毫无pron.
less较少；较小
较少的；更少的		adv. 较少；较小
adj. & pron. 较少的；更少的
less than少于
point得分；点
指；指向		n. 得分；点
v. 指；指向
Claire克莱尔（女名）
Sue休（女名）
American Teenager《美国青少年》（文中为虚构的杂志名称）


Notes on the Text

1. How come? 为什么呢？（怎么会呢？）
 这是英语口语中的一个习语，相当于汉语 “为什么；怎么会” 等意思，既可独立使用，也可在其后接句子，用来询问事情的缘由或状况。

例如：

How come the sky is so blue today? 今天天怎么会这么蓝？
A：I didn’t even eat lunch today. 我今天甚至没有吃中饭。
B：Really? How come? 是吗？怎么会呢？

2. swing dance 摇摆舞
 摇摆舞是爵士舞的一种，初现于 20 世纪早期的美国，其曲调动听活泼、节奏鲜明。听到这种音乐，人们不禁会随着它的节奏和韵律摆动身体，故而得名。

3. The answers to our questions about watching television were also interesting. 对我们提出的有关看电视的问题的回答也颇有意思。
 1）此句的几本意思是 The answers were also interesting， 主语 the answers 为复数，故使用 were。
 2）请注意本句中 answer 和 question 两个名词后的介词搭配。表示 “… 的答案” 时，answer 后要用介词 to，这是一种固定的搭配。

又如：

There’s no easy answer to this problem. 这个问题没有简单的答案。
Her answer to your question is a big “NO”! 她对你所提出问题的回答就是一个大大的 “不” 字！

 名词 question 后则往往搭配介词 about，表示 “有关 … 的（问题）”。

例如：

He asked us some questions about our daily habits. 他问了一些有关我们日常习惯的问题。
Her questions about you were not so friendly. 她有关你的那些问题并不那么友善。

4. Although many students like to watch sports, game shows are the most popular. 虽然许多学生喜欢观看体育节目，但游戏类节目却是最受欢迎的。
 although 是英语中的一个连词，意为 “虽然；尽管”。在英语表达习惯中，当表示 “虽然 …，但是 …” 这样的意思时，although 是不和 but 在同一个句子中使用的。也就是说，在同一个句子中，有 although 就没有 but，反之亦然。

例如：

Although the car is old, it still runs well. (= The car is old, but it still runs well.) 尽管这辆小车旧了，但是依然跑得不错。
I don’t want to go to bed, although it’s past midnight. (= It’s past midnight, but I don’t want to go to bed.) 虽然现在已过半夜 12 点了，但我却不想睡觉。

5. Old habits die hard. 旧习难改。
 这是英语中的一句谚语，用来说明习惯一旦养成，并非朝夕可以改变，其中，die hard 表示 “（旧习惯、传统等）难以改变；根深蒂固”。在本句中，hard 用作副词，表示 “费力地；艰难地；努力地”，

又如：

It is important to work hard but we must also have time to relax. 努力地工作是重要的，但我们也必须有时间放松。

6. So start exercising before it’s too late! 所以赶快锻炼起来，不要等到来不及了！
 it’s too late 的字面意思是 “为时太晚；来不及了”，是英语的一个常用表达。

例如：

Now you know you’re wrong, but it’s too late. 现在你知道你错了，但是已经太晚了。

 此处 it’s too late 与 before 共同组成从句，表示 “不要等到为时已晚；不要等到来不及的时候；趁着还来得及”。这也是一种常见的用法，

例如：

You should work harder before it’s too late to catch up. 你应当更加用功，别等到为时过晚而赶不上了。（你现在用功还赶得上。）