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प्रश्न
Read the following passage and complete the activities:
A1. Complete the chart on the life stages of fireflies: (2)
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Fireflies are beetles and go through several life stages, starting out as an egg, then hatching into larvae. At the juvenile stage, they turn into pupae and then, finally adults. Fireflies spend most of their lives in a larval stage, hidden away. There are 2000 different species of fireflies. But they all go through a long juvenile stage and a short adult life, which is mainly about courtship, mating and reproduction. The juveniles living underground or underwater, are very different though-they're hunters, they eat snails and soft-bodied insects and they have very different habitats. Conserving them is essential for human life as fireflies are a key part of the food web. They are predators of agricultural pests. In turn, they are prey for spiders and other insects. They are completely enmeshed in the web of life. In addition, about 70 years ago, scientists unravelled the mystery of fireflies' light-producing talents. Since then, the bio-chemical reactions that fireflies experience have been used in detecting bacterial contamination in foods, testing drugs against cancer, developing drought-resistant crops. They have been used in space exploration. So fireflies give us beauty and inventions. Fireflies carry oxygen, calcium, magnesium and a natural chemical called luciferin. These react together to produce the photons. This is how the fireflies glow. Firefly tourism is growing across the world. In Maharashtra, for example, a particular species monsoon fireflies, emerge before the rains. They're beautiful and a festival is held in Purushwadi, encouraging firefly tourism. Its wonderful that people around the world go to see fireflies in their natural habitat. We need to be cautious. Too many people can disturb adult and larval habitats. Fireflies need darkness to communicate with each other and we need fireflies because they are harbingers of hope. |
A2. Write two reasons for the conservation of fireflies. (2)
A3. Make antonyms of the following words using prefix: (2)
- different × ______
- experience × ______
- bacterial × ______
- natural × ______
A4. Do as directed: (2)
(i) Too many people can disturb adult and larval habitat.
(Rewrite using 'as well as')
(ii) These react together to produce photons.
(Pick out the infinitive from the given sentence)
A5. Can you think of any other insect that teaches us some values of life? Explain with examples. (2)
उत्तर
A1.
A2. Fireflies are preserved because the biochemical processes they go through are important for detecting bacterial contamination in food and testing anti-cancer medications, among other things. Oxygen, calcium, magnesium, and luciferin are also carried by fireflies.
A3.
- different × indifferent
- experience × inexperience
- bacterial × anti-bacterial
- natural × unnatural
A4. (i) Many people can disturb adult as well as larval habitat.
(ii) to produce
A5. Insect pollinators, such as bees, help with propagation and fruit production. They are also pest predators or parasites. Aside from that, they provide honey. Bees work extremely hard. They frequently work themselves to death. This is a source of inspiration for humans. They teach us to never give up, even when the odds are stacked against us.
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संबंधित प्रश्न
Nicholas chorier is not your usual photographer. He is a kite aerial photographer. He uses a kite to hoist his camera into the skies and clicks photographs while the camera dangles precariously mid – air.
As a teenager, Nicholas had two passions – photography and kite flying. During’ a trip to India to make a photo report on kite making, he learnt about this unique style of photography. Fascinated, he literally tied his two hobbies together for a living.
Nicholas learnt to make a strong modelled on the Japanese kites, Rokkaku that could endure harsh winds. A novice in his chosen field, he then set out to train himself. Today he is one of the most well – known aerial photographers in the world.
The technique is to tie a cradle containing the photography equipment to the string of the kite and then fly it, thus launching the camera into air. From the ground, Nicholas manipulates the angles of the camera with a remote. An air – to – ground video link enables him to see the view from the kite’s vantage point. Once satisfied with the frame, he clicks a picture.
However, the job does have its pitfalls too. Once, his kite disappeared in the Yamuna river, with his expensive camera in tow.
He is especially fond of India, having made a couple of trips and taken many spectacular photos. “India is too vast and beautiful a country to be captured through the lenses in one life” he says.
He recently released a book, Kite’s Eye View: India between Earth and sky. Though it includes photographs of oft takes sites like the Taj Mahal, it shows them from a totally different perspective.
(1) What were Nicholas’s two passions?
(2) How does Nicholas take aerial photographs?
(3) What is ‘Rokkaku’?
(4)
(a) Pick out words from the passage which mean :
(i) To tolerate
(ii) Costly
(b) Nicholas has two passions. [Start the sentence with ‘Nicholas was …….using the adjective form of passion]
(a) India is too vast a country to be captured through the lenses. [Remove too ………. And rewrite] (b) Nicholas learnt to make strong kites. [Rewrite using past perfect tense]
(6) What risks do aerial photographers face?
Read the extract given below and answer the questions that follow:
These meadows aren't worth much to me. They only come to five dessiatins, and are worth perhaps 300 roubles, but I can't stand unfairness. Say what you will, I can't stand unfairness.
(a) Who speaks the above lines and to whom?
(b) How much are the meadows worth?
(c) Find a word in the extract the means 'not based on what is just.'
Read the passage given below:
1. Every morning Ravi gives his brain an extra boost. We're not talking about drinking strong cups of coffee or playing one of those mind-training video games advertised all over Facebook. "I jump onto my stationary bike and cycle for 45 minutes to work," says Ravi. "When I get to my desk, my brain is at peak activity for a few hours." After his mental focus comes to a halt later in the day, he starts it with another short spell of cycling to be able to run errands.
2. Ride, work, ride, repeat. It's scientifically proven system that describes some unexpected benefits of cycling. In a recent study in the Journal of Clinical and Diagnostic Research, scientists found that people scored higher on tests of memory, reasoning, and planning after 30 minutes of spinning on a stationary bike than they did before they rode the bike. They also completed the tests faster after pedalling.
3. Exercise is like fertilizer for your brain. All those hours spent on exercising your muscles, create rich capillary beds not only in leg and hip muscles, but also in your brain. More blood vessels in your brain and muscles mean more oxygen and nutrients to help them work. When you pedal, you also force more nerve cells to fire. The result: you double or triple the production of these cells – literally building your brain. You also release neurotransmitters (the messengers between your brain cells) so all those cells, new and old, can communicate with each other for better, faster functioning. 'That's a pretty profound benefit to cyclists.
4. This kind of growth is especially important with each passing birthday, because as we age, our brains shrink and those connections weaken. Exercise restores and protects the brain cells. Neuroscientists say, "Adults who exercise display sharper memory skills, higher concentration levels, more fluid thinking, and greater problem-solving ability than those who are sedentary."
5. Cycling also elevates your mood, relieves anxiety, increases stress resistance, and even banishes the blues. "Exercise works in the same way as psychotherapy and antidepressants in the treatment of depression, maybe better," says Dr. Manjari. A recent study analyzing 26 years of research finds that even some exercise – as little as 20 to 30 minutes a day – can prevent depression over the long term.
6. Remember: although it's healthy, exercise itself is a stress, especially when you're just getting started or getting back into riding. When you first begin to exert yourself, your body releases a particular hormone to raise your heart rate, blood pressure, and blood glucose levels, says Meher Ahluwalia, PhD, a professor of integrative physiology. As you get fitter, it takes a longer, harder ride to trigger that same response.
On the basis of your understanding of the passage, complete the statements given below with the help of the options that follow:
(a) Ravi gets his brain to work at peak level by
(ii) playing games that need brain activity.
(iii) cycling on a stationary bike.
(iv) taking tablets to pump up his brain.
(b) When nerve cells work during exercise then
(ii) the brain is strengthened by multiplying them.
(iii) you start to lose your temper.
(iv) your stationary cycle starts to beep.
Answer the following questions briefly:
(c) How does exercise help the brain?
(d) Why does Ravi do a circuit of 'ride, work, ride'?
(e) What is the work of neurotransmitters?
(f) What benefits other than greater brain activity does one get from cycling?
(g) Why is exercise so important for adults?
(h) How is exercise itself a stress?
(ii) inactive (para 4)
Read the following extract and answer the questions given below :
One day, I saw the tree was being cut. I rushed to the site and begged the tree cutters to spare the trunk as it wast the home of many a parrot. But I was laughed at and the tree fell with a great thud. I ran to the top end to see two just hatched chicks thrown out of their nest and smashed to death. I looked into all the nests and saw smashed eggs in two of them and one little chick in the other one. Fortunately, the little one survived the fall. I brought it home. The chick can be identified as a parrot only by the shape and colour of its beak. No feathers had come out. 1 carefully fed it with milk and within two weeks it began to eat bananas; and two months later, it started to fly and I let him fly away. But he would not fly long. He used to liner on the coconut trees in our compound and when I reached home from school, he would fly down and land on my head!
I would show him my finger and he would jump on to it from my head and drink the milk I offered him in a little plate. By putting the sharp end of the upper beak stationaty in the plate, he would drink the milk by moving his tongue and lower beak to and fro. Then he would fly on to my shoulder and eat paddy from mypahn.
(1) What is the extract about? (1)
(2) Describe how did the boy save the life of a chick ? (2)
(3) What was the parrot's daily routine at the author's home? (2)
(4) Do you think, we have deprived the birds of their natural habitats? What are its effects? (2)
(5) Rewrite the following sentences in the ways instructed :
(i) I rushed to the site. (Rewrite the sentence using 'used to'.) (1)
(ii) The tree was being cut. (Rewrite it beginning with 'They .... .' (1)
(iii) I looked into all the nests and saw smashed eggs in two of them. (Rewrite the sentence using the word 'when'. (1)
(6) Find out the words from the extract which mean -
(i) neatly (1/2)
(ii) stay for longer (1/2)
(A) Read the following extract and answer the questions given below:
Chronic floods during the monsoon, on average, affect more than 30 million Indians annually Ironically, 60% of India's farmland, 66% of its livestock and its entire forest area depend on rains for survival.
According to a recently released Central Water Commission (CWC) report, on an average, 7·21 million hectares (roughly 72,000 sq. km.) go under floodwater. This water typically ravages 3·78 million hectares of agricultural land, damaging crops worth Rs. 1, 118 crores annually.
Heavy rains and floods account for nearly 1,700 lives lost annually. Apart from this, I ·25 lakh houses are annually damaged by torrential rains that also wipe out nearly 96,000 livestock.
Floods are the most recurrent natural calamity, hitting India almost every year. According to the CWC's report on financial aspects of flood control, anti-sea erosion and drainage projects, it is not possible to provide absolute protection instantly to all flood-prone areas. It says that such an attempt will neither be practical nor economically viable.
The CWC's analysis of floods in India from 1953 to 2011 shows a marginal decline in flood-affected areas over the years, the data shows 1977 1978 and 1979 were the worst-hit. The 1977 floods killed over 11,000 people, six-time the average for the 59 years, between 1953 and 2011. In terms of area and population affected, the floods of 1978 were the most destructive.
In terms off the financial loss, recent floods have been far more destructive. The total loss of crops, houses and public utilities in 2009 was Rs. 32541 crores, the highest for any year.
Question
(1) What is the above extract about?
(2) How do floods adversely affect India?
(3) Why is it not possible to provide absolute protection to all flood-prone areas?
(4) How would you help the flood-affected people?
(5) Rewrite the following sentences in the ways instructed :
(i) The floods of 1978 were the most destructive.
(Change the sentence into the 'positive degree'.)
(ii) Floods are the most recurrent natural calamity hitting India almost every year.
(Make it a complex sentence.)
(iii) Floods have been far more destructive.
(Rewrite the sentence using the Simple Present tense.)
(6) Give the meanings of:
(i) entire
(ii) calamity
(B) Write a brief summary of the above extract with the help of the points given below and suggest a suitable title.
Floods - natural, recurrent calamity in India - destroy life and property - no absolute protection - neither practical nor economically viable- floods in 1977 and 1978.
Read the following extract and answer the question given below: (11)
Researchers· recently announced the earth could actually
withstand up to 200,000 times the current population. They arrived at this figure by calculating the amount of heat a human body emits. and only at l ·3 million billion would the earth be too hot to be habitable. And though it would feel like being in a can of sardines if that figure were ever reached, the earth is capable of comfortably sustaining a population several times the current 6·5 billion.
In fact, fertility is actually on the decline worldwideThough
population has grown, the rate of growth has fallen sharply. Twenty years ago, the UN projected that population would reach l l · 16 billion in 2050, today they say it will reach only 9·37 billion. Moreover, human population will stabilize at about 11 ·5 billion.While this figure is almost twice the current one, it is hardly claustrophobic.
True, the demands on resources are heavy even now, but this is more due to the manner in which these resources are being used. In fact, figures show that a bigger population does not amount to greater consumption. Over 20% of the world 's people in the highest income countries account for 86% of total private consumption expenditure - the poorest 20% a tiny 1 ·3%. With just 5% of the world's population, the US consumes about 40% of the world's resources. Would you say the US is overpopulated?
Concerns on scarcity of food are equally baseless. In fact, global food production has actually kept up with population growth . If people starve in many countries it is not because food is becoming scarce; it is because those people cannot afford it.
Questions:
(1) What conclusions did the researchers arrive at? (1)
( 2) How does the writer explain that the fertility is on the
decline? (2)
(3) What does the extract predict about the fear-, of scarcity of food? (2)
( 4) How will population become a gift in the global market
scene? (2)
(5) Rewrite the following sentences in the ways instructed:
(i) The earth could withstand upto 200,000 times the
current population.
(Rewrite the sentence using the modal auxiliary showing 'certainty'.) (I)
(ii) The earth would be too hot to be habitable.
(Remove ' too' and rewrite the sentence.) (1)
(iii) These resources are being used.
(Rewrite the sentence beginning with, 'We ............ ') (I)
( 6) Write the antonyms of:
(i) habitable (1/2)
.
(ii) stabilize ( 1/2 )
Read the following extract and answer the questions given
below:
Today, at 29, \.1.ichael has discovered the power of another good idea that has helped him rise in just a few years from teen to tycoon.He has become the fourth largest manufacturerof personal computers in America and the youngest man ever to head Fortune 500 Corporation.
Growing up in Houston, Texas. Michael and his two brothers were imbued by their parents. Alexander and Lorraine - he anorthodontist, she a stockbroker- with the desire to learn and the drive to work hard. Even so, stories about the middle boy began to be told early.
Like the time a saleswoman came asking to speak to "Mr. Michael Dell" about his getting a high school equivalency diploma. Moments later. eight-year-old Michael was explaining that he thought it might be a good idea to get high school out of the way.
A few years later Michael had another good idea, to trade stamps by advertising in stamp magazines. With the $2000 he made, he bought his first personal computer. Then he took it apart to figure out how it worked.
In high school Michael had a job selling newspaper subscriptions. Newlyweds, he figured, were the best prospects, so he hired friends to copy rhe names and addresses of recent recipients of marriage licences. These he entered into his computer, then sent a personalized letter offering each couple a free two-week subscription.
This time Dell made $ 18,000 and bought an expensive BMW car. The car salesman was flabbergasted when the 17-ycar-oJd paid cash.
(I) What details does the writer give about Dell's family in the
extract? (1)
(2) How did Dell succeed in earning S2QOQ? (2)
(3) Why was the car salesman flabbergasted? (2)
(41 What do you think you can learn from Dell's story? (2)
{5) Rewrite the following sentences in the ways instmcted:
{i) "He has discovered the power of another good idea."
(Rewrite it beginning with 'The power of another good
idea ...... ... .'.) (1)
.(if) "If you think you have a good idea, try it. "
(Use 'Unless' .) (1)
(iii) '"This time Dell made $18,000 and bought an expensive
BMW car." (1)
(Make it a simple sentence.)
CM Find out the words from the extract which mean :
(i) filled with a quality. (1/2)
(ii) understand. (1/2)
Read the extract and do the activities that follow :
When Rosalind heard about Orlando's wound and saw the handkerchief stained with his blood, she also fainted; and later she told Oliver that she was really Rosalind, and loved Orlando dearly. Oliver had already fallen in love with gentle Celia, and he persuaded the two girls to accompany him to Duke Senior's court. Rosalind, however, wanted to play one more trick as Ganymede, so she made Oliver promise not to tell anyone that the young shepherd boy and his sister Aliena were really Rosalind and Celia.
And so Aliena and Ganymede were introduced to the old Duke, and he did not recognize his daughter, although he remarked on Ganymede's likeness to Rosalind.
Then the "shepherd boy" told Orlando and the Duke that he could find Rosalind and would bring her to them, making the Duke promise that he would allow his daughter to marry Orlando. she and Celia ran quickly to the shepherd's cottage, changed into their own clothes and removed the brown stains from their faces. Then they returned to the Duke, where they were welcomed with great rejoicing.
'To you, I give myself, for I am yours,' Rosalind said to the Duke, her father. Then she turned to Orlando and said: 'To you, I give myself, for I am yours.'
Rosalind and Orlando were married at once in the forest and on the same day Oliver who was no longer selfish and wicked, married Celia. Just as they were going to be married, a messenger came to ask Duke Senior to go back to his dukedom. Celia's father, Duke Frederick, had mended his wicked ways and asked his brother to return.
A1. True/False :
Choose the true statements from those given below and write them down :
(i) Rosalind played the role of a shepherd boy Ganymede.
(ii) Senior Duke recognised his daughter, Celia.
(iii) Oliver married Rosalind.
(iv) Duke Frederick had mended his wicked ways.
A2. Convert into a dialogue :
Convert the above extract into a dialogue form.
Read the passage given below carefully and answer the questions that follow.
1. Overpowering prey is a challenge for creatures that do not have limbs. Some species like Russell's viper inject poison. Some others opt for an alternative non-chemical method – rat snakes, for instance, catch and push their prey against the ground, while pythons use their muscle power to crush their prey to death. But snakes can't be neatly divided into poisonous and non-poisonous categories.
2. Even species listed as non-poisonous aren't completely free of poison. The common Sand Boa, for instance, produces secretions particularly poisonous to birds. So the species doesn't take any chance – it crushes its prey) and injects poison as an extra step.
3. Do vipers need poison powerful enough to kill hundreds of rats with just one drop? After all, they eat only one or two at a time.
4. While hunting animals try their worst to kill most efficiently, their prey uses any trick to avoid becoming a meal, such as developing immunity to poison.) For instance, Californian ground squirrels are resistant to Northern Pacific rattlesnake poison.
5. Competition with prey is not the only thing driving snakes to evolve more and more deadly poison. Snakes also struggle to avoid becoming prey themselves.
6. Some snake killers have partial immunity to poison. Famously, mongooses are highly resistant to cobra poison, and with their speed and agility, kill snakes fearlessly. It would be the death of cobras as a species if they didn't evolve a more deadly poison to stop mongooses.
7. Poison has another important role. It's an extreme meat softener, specific enzymes break up the insides of the prey. Normally, a reptile depends on the sun's warm rays to aid digestion.
8. But I wonder if we cannot use venom in our favour. In remote parts of India, local hospitality often involves leather tough meat. I chew and chew until my jaws ache. If I spit it out or refuse, our hosts would be offended, I swallow like a python stuffing a deer down its throat and hope I don't choke. If only I had poison.
(b) How does Sand Boa kill its prey?
(c) There is a constant tussle between the hunting animal and its prey? Why?
(e) What difficulty does the writer face when he is entertained in the remote parts of India?
2.2 On the basis of your reading of the above passage fill in any two of the following blanks.
b. humans
c. a python
d. prey
b. hardens
c. softens
d. breaks down
iii. Californian squirrels are ______________ rattlesnake poison.
a. afraid of
b. helpless against
c. resistant to
d. indifferent to
a. Liquid substances released from glands (para 2)
c. Particular (para 7)
Read the passage given below and answer the questions that follow:
| 1. | A fisherman, enfeebled with age, could no longer go out to sea so he began fishing in the river. Every morning he would go down to the river and sit there fishing the whole day long. In the evening he would sell whatever he had caught, buy food for himself and go home. It was a hard life for an old man. One hot afternoon while he was trying to keep awake and bemoaning his fate, a large bird with silvery feathers alighted on a rock near him. It was Kaha, the heavenly bird. “Have you no one to care for you, grandpa?” asked the bird. “Not a soul.” “You should not be doing such work at your age,” said the bird. “From now on I will bring you a big fish every evening. You can sell it and live in comfort.” True to her word, the bird began to drop a large fish at his doorstep every evening. All that the fisherman had to do was take it to the market and sell it. As big fish were in great demand, he was soon rolling in money. He bought a cottage near the sea, with a garden around it and engaged a servant to cook for him. His wife had died some years earlier. He had decided to marry again and began to look for a suitable woman. |
| 2. | One day he heard the royal courtier make an announcement. Our king has news of a great bird called Kaha,” said the courtier. “Whoever can give information about this bird and help catch it, will be rewarded with half the gold in the royal treasury and half the kingdom!” The fisherman was sorely tempted by the reward. Half the kingdom would make him a prince! |
| 3. | “Why does the king want the bird,” he asked. “He has lost his sight,” explained the courtier. “A wise man has advised him to bathe his eyes with the blood of Kaha. Do you know where she can be found?” “No…I mean …no, no…” Torn between greed and his sense of gratitude to the bird, the fisherman could not give a coherent reply. The courtier, sensing that he knew something about the bird, informed the king. The king had him brought to the palace. |
| 4. | “If you have information about the bird, tell me”, urged the king. “I will reward you handsomely and if you help catch her, I will personally crown you king of half my domain.” “I will get the bird for you,” cried the fisherman, suddenly making up his mind. “But Kaha is strong. I will need help. The king sent a dozen soldiers with him. That evening when the bird came with the fish, the fisherman called out to her to wait. “You drop the fish and go and I never get a chance to thank you for all that you‘ve done for me," he said. “Today I have laid out a feast for you inside. Please alight and come in. Kaha was reluctant to accept the invitation but the fisherman pleaded so earnestly that she finally gave in, and alighted. The moment she was on the ground, the fisherman grabbed one of her legs and shouted to the soldiers hiding in his house to come out. They rushed to his aid but their combined effort could not keep Kaha down. |
| 5. | She rose into the air with the fisherman still clinging to her leg. By the time he realised he was being carried away, the fisherman was too high in the air to let go. He hung on grimly, and neither he nor Kaha was ever seen again. |
Based on your understanding of the above passage, answer the questions.
- Why did the fisherman start fishing in the river?
- How did the fisherman spend the day before he met Kaha?
- How did the fisherman betray Kaha?
- Why was the fisherman doubtful about revealing information about Kaha to the courtier?
