高中英语微课

Hello, everyone! Welcome to today's exciting English micro - lesson. We're about to embark on a thrilling adventure in an old castle, where we'll not only uncover health "killers" but also master the usage of "Infinitives as the subject" from Unit 2 "Healthy Lifestyle" in the third compulsory selective book of the People's Education Press for senior high school. Let's go!

see today's learning objectives:1.identify and summarize“to do” structure as the subject ;2.apply “to do” structure as the subject properly to real situations.3.realize the importance of living a healthy life.

Before we set off on our castle adventure, think about this: What exactly is a healthy lifestyle? Is it working out regularly or having a diet full of colorful veggies? It's super important, right? Now, what kind of trouble can an unhealthy lifestyle bring? Well, Mr. Detective just called me. He said there are health "killers" lurking in the old castle, and it's our job to find them. Along the way, we'll also learn all about infinitives as the subject. So, are you ready to start this exciting journey?

there are four challenge puzzles. you need to finish the four tasks to find parts of the keys to the castle.Our first task in the castle is a game called "Identify killers".

As we enter the gloomy castle hall, look at the magic screen in front of us. The first message appears: "To choose me is to choose stress. It’s hard to live without me." What could it be? Right, it's stress! Stress can shatter our inner peace like a gust of wind breaking a delicate vase.

The second one shows up: "My job is to meet taste buds, but not to make people fit. It’s hard to quit!" This must be sugary foods. They might taste great but are not so great for our health.

And the last one: "You need to look at yourselves to find me. You get tiredness and emptiness." Bingo, it's staying up late. These three villains are harming our health, and we need to defeat them!

now we have conquered the first challenge and we got the first part of the key.

Now that we've stepped deeper into the castle, let's quickly review the functions of the "to do" structure.that's our second task to fuel the castle and find the second part of the key.

We've learned that it's like a multi - tool in English. For example, when we were looking for clues earlier and saw the sentence "You need to look at yourselves to find me.", "to look at yourselves" is like a little guide showing the purpose, an adverbial of purpose.

And in "My job is to meet people’s taste needs.", "to meet people’s taste needs" is like a signpost, telling us what the job is, so it's a predicative.

It can also be an attributive, an object complement, and an object. Try to recall some sentences in your mind.

Can you spot these usages? But today, our main focus is on its usage as the subject.

As we enter a mysterious room in the castle, let's analyze infinitives as the subject. Look at these examples on the ancient wall.

"It is easy for you to find stress in the office." Here, "to find stress in the office" is the real hero, the real subject, while "it" is just a stand - in, a formal subject. Just like in "It takes a long time for us to remove the stress." Another example appears on a scroll: "How to quit the bad habits is a big issue." Here, the infinitive phrase jumps right in and functions as the subject directly.

Let's test our understanding through some dialogues and fill - in - the - blanks. For example, in "JF: ________ people happy is my wish! HD: But look at yourself! It is your fault ___________us unhealthy." What should we fill in? Yes, "To keep" and "to make".

Now, look at the confession note left by a victim in the corner: "I must admit that I have fallen into a bad habit of staying up late. __________ on time is important. And I have realized it was unnecessary _______________." We should fill in "To sleep" and "to stay up late". These show how infinitives as the subject work in different situations. And guess what? This is also a key test point in the college entrance examination.

For example, in "(2021 National College Entrance Examination Paper) It is necessary ________ (protect) the environment.", the answer is "to protect". See how important it is to master this?

see we've got three parts of the key to the castle.

Summary and Homework We've almost reached the end of our castle adventure. In today's class, we successfully identified the health "killers" and learned all about the usage of infinitives as the subject. Remember, in real life, we need to maintain a healthy lifestyle, and in English, we need to use the "to do" structure as the subject correctly.

For our final task in the castle, do a small exercise. Choose one of the health "killers" and write a short health declaration in groups. Use at least 3 sentences with the "to do" structure as the subject.

now we've made it and got the whole key to the castle.

let's celebrate and leave the castle. congratulations!

After we leave this castle, complete the homework. Write a detective report about another health killer. Identify it, analyze it, and develop a plan. Use the "to do" structure as the subject as much as possible. I hope you can not only master English knowledge but also pay more attention to your health. That's all for today's adventure. Goodbye, everyone!