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Unit 11 Gadgets and Instruments [Class-9]

Reading I Save your Smartphone

Look at the following picture and answer these questions.

She is using her smartphone while charging.

We may have the risk of electric shock / accident

iii. While using a phone, we should avoid long conversation, not use while charging, keep away when sleeping, keep away from children etc.

A. Match the words in column A with their meanings in column B.

Prolong          = to make something last longer

essential         = extremely important

fading        = being less bright

generate         = to produce

gunk                 = any sticky or dirty substance

render              = to cause something to be in a particular condition

notification   = notices

B. Write True for true statements and False for false ones.

It’s a good idea to keep our phones fully charged.

We should keep our phones together with other gadgets.

A phone is likely to hold more bacteria than a toilet seat.

Setting a screen lock on the phone helps us keep the information safe.

Smartphones are very useful even without apps.

Answer:

It’s a good idea to keep our phones fully charged. False

We should keep our phones together with other gadgets. False

A phone is likely to hold more bacteria than a toilet seat. True

Setting a screen lock on the phone helps us keep the information safe. True

Smartphones are very useful even without apps. False

C. Answer the following questions.

Write any three uses of smartphones in everyday life.

Why should we care for our phones?

Why should we not use cheap chargers to charge our phones?

How can we prevent our phones from getting over heated?

How can the phone be cleaned?

Answer:

The uses of smartphones in everyday life are as follows:

Staying connected with family and friends

Getting works done

iii. Staying up to date with important schedules

Buying groceries or clothes online

We should care for our phones because they are very essential and central to our life.

We should not use cheap chargers to charge our phones because there may be the possibility of catching fire.

We can prevent our phones from getting overheated by placing them away from other gadgets at room temperature.

The phone can be cleaned with an antimicrobial spray and wiping it with a soft cloth.

What gadgets do you have at your home? How do you take care of them?

Answer:

There are so many gadgets at home. We must take care of them. We have the gadgets such as smartphones, chargers, smartwatches, laptops, earphones and so on.

Due to COVID-19 outbreak, we are gradually realising how our gadgets are the breeding place for so many viruses and germs. Before the lockdown days, every time we touched any object such as handrails, door handles, switches in the elevator, we seldom cleaned our hands leading exposure to various microbes which then transferred to gadgets of our daily use such as smartphones, chargers, smartwatches, laptops, earphones and so on.

Because we work from home and have other gadgets, it's impossible to say how much muck has accumulated between the buttons of our computer mouse or how much hair, dust, and food crumbs have fallen into the cracks of the keyboard. Alternatively, into the wire mesh of the headphones. We may have regular contact with these devices throughout the day, with oil and dead skin from our hands continuously rubbing off on them, making them potential breeding grounds for germs. As a result, keeping our electronics clean and sanitized is more than necessary. Some of the tips to take care of our gadgets are given below:

To keep our gadgets like laptop clean, we can follow these steps:

Step One: Remove your battery, clean it with a microfiber cloth, then blow off the dust using compressed air.

Step two: Using the same towel, wipe down the screen to remove any smudges.

Step three: Spray compressed air between the keyboard's keys and into the USB ports.

Step four: Soak a cotton swab in isopropyl alcohol and gently clean the exterior of the laptop.

Step 5: Wipe down the laptop with a clean, dry cloth.

Grammar I (page 137)

Study the following table.

She said, "I love horror movies."She said that she loved horror movies.
"I worked as a waiter before attending college," Harish said.Harish said that he had worked as a waiter before attending college.
My friend said, "I'll phone you tomorrow."My friend said that he would phone me the next day.
She said, "I'm planning to do it today."She said that she was planning to do it that day.
He said to me, "Get me something to drink."He told me to get him something to drink.
"Don't make a noise," said the teacher to the students.The teacher told the students not to make a noise.

The doctor said to the patient,

"Quit smoking."

The doctor advised the patient to quit smoking.
The policeman told me, "Don't park here."

The policeman forbade me to park there.

The policeman told me not to park there.

Change the following sentences into indirect speech. Use the given sentence starters.

“He works in a bank.”

She said  ……………………..

“We went out last night.”

She told me ……………………..

“I’m coming!”

She said……………………..

“I was waiting for the bus when he arrived.”

She told me ……………………..

“I’d never been there before.”

She said ……………………..

“I didn’t go to the party.”

She told me ……………………..

He said to me, "Help him to do his homework."

He asked me …………………..

The doctor said to the patient, "Take bed rest for a week."

The doctor advised the patient ……………………..

The commander said to his soldiers, "March further."

The commander ordered ……………………..

Answer:

She said that he worked in a bank.

She told me that they had gone out the night before.

She said that she was going.

She told me that she had been waiting for the bus when he had arrived.

She said that she had never been there before.

She told me that she hadn’t gone to the party.

He asked me to help him to do his homework.

The doctor advised the patient to take bed rest for a week.

The commander ordered to march further.

Writing I (page 138)

Prepare a recipe to cook your favourite dish at home. Use the prompts given below.

name of the food item            ingredients            cooking procedure

Recipe to cook pasta

Ingredients

2 cups pasta

1 tbsp olive oil

1 tbsp olive oil

1 tsp salt

Procedure

Bring a large pot of water to a boil with one tablespoon of olive oil and one teaspoon of salt.

Drop a few strands or one sheet of pasta into the boiling water at a time.

Cook, uncovered until the pasta is cooked, stirring periodically and gently. Cooking times will vary depending on the size and thickness of the pasta.

Small pasta like macaroni can be cooked in 5 to 7 minutes.

Larger forms of pasta like spaghetti may take 10 to 12 minutes to cook.

Drain the cooked pasta immediately into a strainer or colander. To refresh, place it in a basin of cold water. Drain one more and set aside.

Toss the pasta with one tablespoon olive oil if it is not going to be used right away.

Reading – II Gadgets and Instruments

A. Match the words with the correct weather symbols.

sunny b. partially cloudy          c. rainy

cloudy   e. snowy                            f. stormy

Weather Instruments

Complete these sentences with the appropriate words from the text above.

Most of the FM …………. broadcast the news at 7:00.

The function of a ………….is to convert the change of temperature into numerical numbers.

The Earth is ………. by the atmosphere.

The amount of water in the air is called …………….

The wind vane is also known as a …………………

Answer

stations b. converter     c. wrapped    d. humidity   e. weather vane /weathercock

Choose the correct answer.

How did people get the weather information until the 18th century?

with  weather instruments ii. through their physical senses

iii. through their intuitions

Which one of the following barometers is the latest one?

digital           ii. mercury             iii. aneroid

What does a barometer measure?

atmospheric temperature          ii. atmospheric humidity

iii. atmospheric pressure

Which of the following devices is NOT used to get weather information?

thermometer        ii.  galvanometer   iii. anemometer

Which of the following devices is used to measure the speed of the wind?

wind wave ii. anemometer   iii.  hygrometer

Answer

  1. through their physical senses
  2. digital

iii. atmospheric pressure

  1. galvanometer
  2. anemometer

Answer the following questions.

a. Where is an alcohol-filled thermometer mainly used?

An alcohol-filled thermometer is mostly used to measure the temperature under -35 degree             Celsius.

b. What is a barometer used for?

A barometer is used for measuring atmospheric pressure.

c. What are the two kinds of hygrometer?

The two types of hygrometers are dry and wet bulb hygrometers and mechanical hygrometers.

d. Give two examples of how an anemometer gives information about the weather.

An anemometer gives information about the weather by showing the speed of the wind and predicting storms as well as hurricanes.

e. Name the device that is used to measure the changes in weather conditions.

The device that is used to measure the changes in weather conditions is the barometer.

f. What precautions should be taken while using a rain gauge?

The rain gauge must be placed in an open place without any obstacles.

D. How do you usually find out what the weather will be like? Talk to your friends.

We usually find out about the future condition of the weather with the help of a Barometer. The weather will be like overcast, windy, and drizzly. Such weather makes me feel peaceful and comfortable. I enjoy such weather, especially at night, since I can hear the rainfall and see the dew on the window, which helps me sleep. The light rain helps the crops to grow nicely.

Grammar II

Change the following sentences into indirect speech.

He said, "Don't use my camera."

The doctor said, "Give up smoking."

"Don't touch the wire." The electrician said to me.

“Could you explain number four, please?” said the student.

"Don't worry about it, Mrs. Shrestha." She said.

"Finish this job in an hour." He said.

Amrita said to me, “Please help me.”

Answer

He told me not to use his camera.

The doctor suggested me to give up smoking.

The electrician told me not to touch the wire.

The student requested me to explain number four.

She told Mrs. Shrestha not to worry about it.

He told me to finish that job in an hour.

Amrita requested me to help her.

Complete the following sentences with the correct alternatives from the brackets.

Anju said that she…………….(had seen/has seen/was seen) the accident the day before.

She says that ……………(she could not stay there anymore/I can’t stay there anymore/she can’t stay there anymore)

The teacher told us that……………….(the Earth revolves round the Sun/the Earth revolved round the Sun/the Earth revolve round the Sun)

Pramesh said that………………(he had done his homework/I have done my homework/he has done his homework)

The policeman ………………(requested/told/ordered) the thief not to move.

My father forbade me ……………… (to spend/do not spend/not to spend) so much money.

The head teacher forbade the students' parents ………………(not to smoke/to not smoke/to smoke) on the school premises.

Answer:

had seen

she can’t stay there anymore

the Earth revolves round the Sun

he had done his homework

ordered

to spend

to smoke

Writing II

In the past 20 years, there have been significant developments in the field of science and technology. These developments have had both a positive and negative impact. Write a newspaper article expressing your views on the impact of science and technology.

Answer:

The information technology sector has grown dramatically during the previous two decades. It provides us with things like communication progress, cell phones, the internet, and so forth. However, many experts feel that this rise in the IT sector will have a negative impact rather than a positive impact in the coming years. For several reasons, I strongly disagree with this. The explanation strengthens my position.

IT has both positive and negative impact. However, many experts feel that this rise in the IT sector will have a negative impact rather than a positive impact in the coming years. For several reasons, I strongly disagree with this. The explanation strengthens my position. The most important argument is that it will completely transform the global commercial sector. The majority of the duties will be completed automatically and without human participation. That would be efficient and low-quality goods in the industrial industry. In addition, with the assistance of artificial intelligence, the automobiles would drive themselves. In reality, some businesses, like "Tesla" and "Google," have already produced self-driving automobiles that do not require human intervention.

Furthermore, the company may expect enhanced file management, massive data storage, and cloud hosting. Payment gateways, such as "Google Pay," "Amazon Pay," and "Paytm," are expected to be solely online a few years from now. Furthermore, the communication network will be upgraded in the future. However, I would not ignore the minor risks that may be there. The most prominent is cybersickness. They are concerned that individuals would abandon their regular routines as a result of their addiction to social media. Any cyber assault on social media might be carried out using this data. Any hacker might access the account and demand money.

To summarize it, it can be concluded that, while development in the IT sector has some drawbacks, I believe that development in the IT sector would be definitely beneficial for human life advancement, and information technology will continue to comfort us in unimaginable ways in the coming years.

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