NCERT Solutions for Class 7 English Poorvi Unit 3 Chapter 1
NCERT solutions for Class 7 English Chapter 1: My Brother’s Great Invention – complete answers & explanations
This blog provides complete NCERT solutions for Class 7 English Chapter 1: My Brother’s Great Invention. This chapter from the Class 7 English textbook focuses on creativity, inventions, imagination, and the excitement of new discoveries. It highlights the qualities of an inventor and the importance of responsibility along with innovation. The solutions below are strictly based only on the given worksheet and follow the exact order of questions provided.
What this NCERT chapter covers?
1. The importance of inventions and discoveries in shaping the modern world.
2. Qualities of an inventor such as creative, curious, intelligent, imaginative, and innovative.
3. Cause-and-effect relationships in storytelling.
4. Character traits and personality analysis.
5. Grammar topics including binomials, phrasal verbs, idioms, simple past, and past perfect tense.
6. Listening, speaking, and writing skills development.
How to use these NCERT solutions?
1. First, read each question from the worksheet carefully and attempt to answer it on your own.
2. Use these NCERT solutions to check your answers and correct mistakes.
3. Follow the answers exactly as provided in the worksheet for exam preparation.
4. Parents and teachers can guide students by discussing explanations and encouraging complete responses.
5. The answers are arranged in the exact worksheet order for easy reference.
Important tips & tricks for students
1. Read the questions carefully and identify keywords before answering.
2. In cause-and-effect questions, clearly separate the cause from the effect.
3. While answering grammar questions, pay attention to correct tense usage.
4. For listening and speaking tasks, focus on instructions carefully.
5. Write answers clearly and completely to score full marks.
NCERT solutions – complete answer key
Let us do these activities
I. Work in pairs and guess the invention.
Zero
Yoga
II. Discuss in groups of four what you think the world today would have been like without inventions and discoveries.
Answers may vary.
III. Fill the grid with missing letters (qualities of an inventor)
CREATIVE
CURIOUS
INTELLIGENT
IMAGINATIVE
INNOVATIVE
Let us discuss
I. Complete the cause-and-effect table given below.
Effect: Papa opened the door softly and the water bag fell on him, soaking him completely.
Cause: Anita had already warned Anand and clearly told her parents that she was not involved.
Effect: Anand got inspired to invent a time machine.
II. Explanation:
Think about the promise Anand made to his mother. Recall the later events in the story and decide whether Anand followed his promise or not. Answer orally or in writing, based only on the story.
No. Anand was not able to keep his promise because the time machine got activated during the night, showing that he had not fully stayed away from his invention.
Effect: Anand was not allowed to try out the time machine.
II. Complete the table with the suitable traits of the characters
Anand tried to buy time by misleading Boppa and then suggested shouting for help.
B. Anand’s time machine getting activated
(c) C and E
Anand
bothersome
curious
confident
Anita
responsible
careful
confident
III. Answer the following questions.
1. Anand created the burglar alarm because there were frequent thefts in the colony and he wanted to protect his house using his invention.
2. Anand’s father became the target of the burglar alarm because he opened the door softly, which activated the alarm set up by Anand.
3. Anand’s parents were worried and cautious about his ideas, while his sister Anita was doubtful and critical but still cared about his safety.
4. When Anand was on his ‘inventing binges’, he became completely absorbed in his work, made a lot of noise, created a mess, and ignored everything else around him.
5. Mr. Sharma did not believe Anand because the idea of a working time machine seemed unrealistic and impossible to him.
6. Boppa might have been frightened by the strange sounds and movements of the time machine and escaped, or he may have been sent into another time by the machine, as Anand believed.
Let us learn
I. Match the words in Column 1 with the correct pairs in Column 2 to make binomials.
safe – sound
odds – ends
make – or – break
pros – and – cons
now – or – never
give – or – take
II. Complete Column 2 by matching expressions from the box given below.
Crash – sudden loud sound of breaking
Humming – a continuous low sound
Hissed – whispered angrily
Hammering, sawing, clattering – repeated loud mechanical sounds
2. Use the binomials in sentences
Answers may vary.
3. Complete the paragraph by using the phrasal verbs
ran out of
rigged up
tripped off
let up
turned out
III. Complete the following sentences by filling in the blanks with suitable idioms
get a shelling
fell over ourselves
leaving the coast clear
get on our nerves
frighten me half to death
IV. Underline the verbs in simple past and past perfect tense
had rushed, found
had vanished, reappeared, had cooled
2. Fill in the blanks
(i)
A. had finished
B. decided
C. left
(ii)
A. reached
B. had already left
C. waited
D. realised
E. had forgotten
3. Rewrite the sentences using the past perfect tense where required, showing that one action was completed before another.
1. Rohan had packed his suitcase before he left for the airport.
2. We had started work when he arrived in the morning.
3. They had set up the tents before the others brought food and medicine.
4. The students had become quiet when they heard the teacher coming.
5. The villagers had left the village before the flood submerged the entire area.
Let us listen
Explanation:
Listen carefully to the audio passage read aloud by the teacher. Pay attention to details such as places, characters, and events. Answer only based on what you hear.
Toby misses his school
II. Fill in the blanks with the exact words you hear.
planet
Martians, energy
chocolates
one
rivers, oceans
Let us speak
Explanation:
Sing the song or rhyme given in the textbook with proper rhythm and pronunciation. No written answer is required.
Let us write
Explanation:
Choose a vocation from the list given in the textbook. Write a paragraph using the hints provided, focusing on the nature of the job, tools used, training required, and pride in the work.
Why NCERT solutions help students?
NCERT solutions help students prepare effectively for exams by providing clear and accurate answers aligned with the worksheet. They improve concept clarity, strengthen grammar skills, and build confidence in writing structured answers. Following NCERT-based solutions ensures better understanding and better performance in assessments.
Help your child build strong English fundamentals with expert-guided learning support.