Theory:

Meaning of difficult words: from the lesson "Journey By Train":
 
S.No
Words
Meaning
1.
Extract
A part of something such as book, music etc
2.
Adventure
An exciting or a risky trip or effort
3.
Attendant
A person whose job to help someone or people
4.
Wager
A betting amount
5.
Punctually
At the right time and not late
6.
Passengers
A person who travels in a ship, bus, car etc. but not the driver 
7.
Official
A person in a position with authority
8.
Merchant
A person who sells and buys goods in large quantities
9.
Carriage
A wheeled vehicle
10.
StragglingSpreading out in various directions
11.
TerritoryAn area or land belong to a country
12.
LocomotiveThe engine of a train
13.
Steam
The hot gas that is produced when water boils 
14.
Abandoned
Left without care and protection
15.
Horizon
The place in the distance where sky and the earth seem to meet
16.
Gaze
To look at something steadily with fixed eyes
17.
Empties into
Flows into
18.
Architecture
The art and practice of designing and making buildings
19.
Midst
Middle of something
20.
Clearing
Refers to an open area with few or no trees in the middle of a forest
21.
Cabin
A small house made of wood
22.
Curious
Wanting to know or learn something
23.
Monsieur
Refers to a title of respect used by a French man
24.
Halt To stop or make something to stop
25.
Hamlet
A small village
26.
Further
Far or to a greater distance
27.
Laid
Put down or set in for a particular use
28.
Proceed
To start or continue doing something
29.
Furious
Extremely angry
30.
Throughout
From the beginning to the end
31.
Snap
A sudden sharp noise
32.
knock
To hit somebody or someone hard
33.
DareTo have enough courage to try or do something  
34.
Transport
A system of moving people from one place to another or vehicles you travel in
35.
Delay
A period of time that makes you to wait due to a problem that makes your work late
36.
Disadvantage
Something that cause you problem or hinder your success
37.
Hurdle/obstacle  
A problem or difficulty that you have to deal with to gain success
38.
Console
To make someone feel comfortable if they are sad 
39.
ForeseenTo realise, know or guess something in advance
40.
SteamerA boat or ship driven by steam
41.
Magnificent
Very impressive and beautiful
42.
Hesitation
A pause or feeling before saying or doing something
43.
Conveyance
The process of moving people, animal, goods etc. from one place to another
44.
Rapidly
Quickly
45.
Determination
The quality that makes you to do something even it is difficult 
46.
Persistence
Refers to the act of continuing or repeating something
47.
Encounter
To experience a difficulty or danger
48.
Hindrance
A thing that interferes or slow down the progress of something
49.
Optimistic
Showing hope or expecting things to happen in a good way
50.
PortrayTo describe or show somebody or something in a particular way
51.
Point- blank
In a firm and direct way
52.
Propose
To offer or suggest a plan
53.
Excessive
Much more than reasonable or expected
54.
Flurried
Being nervous, worried or confused
55.
OutrightImmediately or openly
56.
BargainTo argue with someone to make them agree upon the best price
57.
YieldTo agree to do something
58.
Zeal
Great energy, enthusiasm or effort
59.
Reward
A thing give for your hard work or anything that you have done 
60.
Equip
To provide yourself or somebody/something with things that are needed for a purpose
61.
Intelligent
Good at learning things logically, clearly and quickly
62.
Guide
A person who shows the way to a place for other people
63.
Generous
Willing to give and share much more than necessary
64.
Skill
The ability to do something well
65.
SaddleA seat that is made of leather
66.
Carpet-bagA travel bag made of fabric that is used for making carpets
67.
HowdahA seat for riding on the back of a camel or an elephant
68.
PerchTo sit on a elevated place or near the edge of something
69.
March off To drive somewhere fast