Chủ Nhật, 31 tháng 12, 2017

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Can you tell the difference?

Today, we are going to learn about the differences in American pronunciation between the words

"hurt," "heard," and "hard."

The first word "hurt" can be a verb, an adjective, or a noun.

As a verb, it means to cause mental or physical pain to someone.

The second word "heard" is the past tense of the verb "hear" which means to perceive

by the ear.

And the third word "hard" can be an adjective or an adverb.

As an adjective, it means solid or not soft.

It can also mean difficult to do.

To understand the differences between these words, let's compare the first two words,

"hurt," and "heard."

Both words start with an h like "huh, huh", followed by the same

"ɜr." sound like hur-t and hear-d.

Your lips should be slightly rounded and the tip of your tongue is curled as you say "hɚ."

The difference between these words lies in the last sounds of the words "t" and "d."

While the "t" sound is unvoiced, the "d" sound is voiced.

When you make a voiced sound such as the "d" sound, your throat vibrates.

You can make the "t" sound by pushing air through the opening of your mouth without

causing the throat to vibrate.

Next, we are going to compare the words "hard" and "heard."

To say "hard," you need to open your mouth bigger and drop your jaw little more, compared

to the pronunciation of "hurt" and "heard."

And the "HAR" sound like /hɑɚd/ should be coming from the back of your mouth.

That's the only difference between these words and both words end with the same soft d sound.

Let me demonstrate how to pronounce these words.

Please pay close attention to the shape of my lips and the position of my jaw and tongue.

hur-, hur-, hurt

hear-, hear-, heard

har-, har-, hard

hur-, hur-, hurt

hear-, hear-, heard

har-, har-, hard

Now, I am going to give you a quiz.

I will pick one of the three words and say it three times.

Please listen carefully and tell me which word I am pronouncing next.

I hope you could tell the differences and picked the word "hard" for your answer.

We have another question for you.

I am going to read a sentence twice that contains one of the three words.

Your job is to tell me which word I am using in the sentence.

The answer is "hurt."

I hope this was an easy question for you because, grammatically, the word "hurt" is the

only correct choice for this sentence out of the three words.

If somebody said, "I didn't want to heard him."

or "I didn't want to hard him," these sentences would be grammatically incorrect.

So, in most cases, knowing the correct English grammar can help your listening comprehension.

Okay?

I have one more question.

This time, I will read a sentence that contains two of the three words.

I'll say the sentence three times and give you a little hint each time.

I'd like you to tell me which words are used in what parts of the sentence.

Okay, let's begin.

And the answer is, I heard her say, "I'm hard of hearing."

The phrase "hard of hearing" means having a partial loss of hearing.

In other words, it is difficult for the woman to hear what people are saying because she

has partially lost her ability to hear sounds.

Well, that's it for today.

If you didn't answer all of the questions correctly, watch this video over and over

until you can tell the differences between these words.

Thank you for watching and see you next time.

For more infomation >> How to pronounce HURT, HEARD & HARD - Can you tell the difference? - Duration: 5:29.

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Difference between English and Afghans mums - Duration: 1:32.

For more infomation >> Difference between English and Afghans mums - Duration: 1:32.

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Agile vs Waterfall, What's the substantial difference?【Manifesto for Agile Software Development】 - Duration: 7:00.

Today, we'll discuss the difference between Agile, which we often hear about recently

and Waterfall.

[Intro Video]

Hi, this is Mike Negami, Lean Sigma Black Belt.

Today's topic is one of my viewers' requests.

"Great master, do you have a video using templates with methodology of Agile, Scrum?"

Thank you, JC for your request.

If anyone has any questions or requests, please do not hesitate to ask us.

He asked for a template, but before that, I would like to talk about what Agile is and

the difference between that and its predecessor, Waterfall.

Agile and Waterfall are different approaches for IT projects.

Meanwhile, Scrum is the most popular method in Agile.

Agile and Scrum are usually used for software development, and not for other type of projects.

However, their concepts are very useful and I'm sure that there is something there that

you can use.

In the past, everyone used to use Waterfall.

A 'waterfall' always flows from the top to the bottom and never flows in the opposite

direction.

The Waterfall approach's name came from that.

Here is the basic flow of this approach: Define customer requirements, make a basic design,

then a detailed design and develop coding for the program.

Conduct various tests and confirm that there are no problems, then release the program

to the customer or the person who will operate it.

Like a waterfall, this flow never goes backwards, only when something serious happens.

In general, projects like DMAIC in Lean Sigma and PMP that are done by companies other than

IT companies, are conducted by Waterfall.

However, according to a study by a company in 2017, 94% of English-language software

companies use Agile.

In the IT industry, Agile is now common practice.

Turning to Agile means that there must be a problem with Waterfall, mustn't there?

What problems were there?

With Waterfall, working programs are shown to customers when development is about complete.

Also, since several months have passed since the customer ordered the deal, customers'

thinking may have changed.

Even if there was some dissatisfaction at completion, because it would take considerable

time and effort to rework the program, it was common that the customer settled for it

as-is.

With Waterfall, you'll spend a lot of time in planning and preparation at the beginning

of the project.

Because everyone will work according to the plan, this will be inevitable.

It also takes time to manage the plan.

Once the plan is complete, the plan is absolute and everyone follows the plan even if there

may be some problems.

Moreover, even if it's usual that situations change and unexpected events come about.

It's hard to change the plan at that time.

At an early stage of projects, even the customers often don't understand what they really

need.

There are times that the program made after a detailed plan includes many unused functions.

In other words, the project team's time and action became wastes.

There was a study in 2002 before Agile spread saying "64% of the functions made were unused".

Agile was born in order to overcome these problems.

However, the definition of Agile seems to vary among different people.

There is a joke that if you ask 5 people for a definition of Agile, you will receive 7

definitions.

Considering that, there is one thing I can say:

When the Agile concept was born, Agile engineers at that time gathered and wrote the 'Manifesto

for Agile Software Development'.

We have come to value: 'Individuals and interactions' over processes and tools,

'Working software' over comprehensive documentation, 'Customer collaboration'

over contract negotiation and 'Responding to change' over following a plan.

They also wrote the '12 Principles of Agile Software'.

I put a link to the principles in this video's description below, please check that too.

The point is that achieving those principles is Agile.

Let's see the flow of Agile.

Actually it's conducted similarly to the flow in Waterfall.

However, since it values 'Individuals and interactions', team members work at the

same location.

Then, they prioritize customer's requirements, decide important functions, design, code and

test each function, then complete 'Working software'.

Since 'Customer collaboration' is important, they show the 'Working software' to the

customers and have them check it immediately.

This cycle lasting a few weeks is called 'Iteration'.

They respond to any modification requests immediately, accept new requests willingly,

and repeat this 'Iteration' and complete the software by 'Responding to change'.

Unlike Waterfall with which "you would make all the functions that you designed at the

beginning", with Agile, because of its 'Customer collaboration' and 'Responding to change',

"you can make and provide only the functions your customer needs".

This is the definite difference between the Agile and Waterfall.

Thank you very much for viewing.

Please click the 'Subscribe' button.

Also click and watch my other related videos.

Thanks.

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