NCERT Solutions for Class 10 English Main Course Book (MCB) Unit 11

Unit-3 Plugging into Future Class 10

Unit 11 Unit-3 Plugging into Future Exercise Answers & Summary

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Unit-3 : Solutions of Questions on Page Number : 98

Q1 :  

Work in groups of four and give a one minute presentation on the latest gadgets that you have been using or your parents are using at home. Write any two advantages and disadvantages the new gadget has over the old one.


Answer :

This question is to be answered on the basis of your own understanding, experience and thoughts. It is strongly recommended that you prepare the solution on your own. However, some pointers for discussion have been provided for your reference.

Mobile phone can be taken as an instance of a latest gadget at home.

I recently bought a Blueberry Cold 9780. I always had the fantasy of buying this model although it has its own advantages and disadvantages. Some of these can be listed below:

  • Advantages:

  • Fantastic Battery Back-up;

  • 5 Mega-pixel Camera;

  • Unlimited Internet Access;

  • 32 GB Extendable Memory.

  • Disadvantages:

  • Radio waves emitted by mobile phones are harmful to human body;

  • Excess usage leads to a disturbed mind, and hence, a disturbed sleep.

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Q2 :  

Here is a list of innovative inventions. Read them and match them with the visuals by writing the correct numbers in the blanks given by the side of the visuals.

1. If you're looking to uncover a hidden treasure, then put your conventional metal detector to the side, and replace it with this pair of metal detecting sandals. Not exactly a trend setter, but a lot more practical than carrying a large pole around with you. The sandals are attached to a small black box, which can be strapped around one of your legs, concealed under your trouser leg. The right sandal has an inbuilt copper coil, which is powered by the battery pack, which straps around your leg. Once the sandals approach within 2' of a metal object, you will be alerted in one of two possible ways. A light is flashed, and then either a vibration or a buzzing noise is emitted. The metal detecting sandals require a 9V battery, which does not come included, but which will supply 6 hours of detecting time. The sandals come in different sizes, to fit both men and women.

2. Just occasionally a product comes along that simply blows us away. We get to see a lot of crazy and sometimes brilliant inventions, but Laser Cosmos is without a doubt the most superb one we've seen. There is no product out there that comes even close to the sheer excellence of this galactic wonder - sorry to sound quite so effusive, but really, it's staggering. Imagine lying in your room, and having the ceiling whipped away to reveal the vast outreaches of the cosmos whirling overhead, complete with misty blue nebulae (which you can turn on and off!) and the occasional shooting star. Fully adjustable and requiring no set up, this super powerful space projector scatters a random panoply of sparkling green stars that will fill any room from the tiniest bedroom to the largest warehouse with a crystal clear animated star display. What's so clever about this (apart from everything of course) is th


Answer :

1. LED Umbrella

2. Laser Cosmos

3. Nappak

4. Flying Alarm Clock

5. Luggage bag and mini scooter

6. Metal detecting sandals

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Q3 :  

Your teacher will divide you into groups of four. Pick up any one of the inventions that you read above and create an advertisement for it. Remember to:

  • create a slogan

  • highlight its advantages

  • offer any discounts

Now present the advertisement to the rest of the class as if you are promoting the product.


Answer :

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Q4 :  

In groups of four describe an innovative invention that you could make to lighten your burden at home or in school and present it to your class.


Answer :

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