was based Passive construction. The verb base in this meaning is mostly used in the Passive.
the lectures he gave here This is a noun phrase with a relative clause: the lectures that he gave here. The conjunction (that or which) is often left out.
for all I know X is true I don't really know, but it seems likely that X is true
It takes X to do or make Y. You need X in order to do or make Y.
ferrule This is not a common word. He means something like "The brass container that holds the eraser."
The ferrule - I have no idea where it came from. This is a common emphatic construction. First you say what the topic of the sentence is going to be. Then you say the sentence using a pronoun to refer to the topic.
I haven't the slightest idea. This means the same as I have no idea or I don't have any idea. Note the negative form haven't without the auxiliary verb do, similar to isn't.
slightest is the superlative form of slight.
Commissar is a Russian word meaning "a top Communist Party official who has the power to order people what to do."
a trifling sum a small sum (of money) The word trifle means "a small, insignificant thing."
Grammar topics:
Expressions:
it takes X (to do or make Y); for all I know; I haven't the slightest (the foggiest) idea; a trifling sum;
Vocabulary:
lead; graphite; rubber; wood; steel; iron ore; paint; glue; trade X for Y; induce; cooperate
to be based on for all X knows, for all X knew it takes X to do (or make) Y native to (vs. native of) with the help of I don't have (or haven't) the slightest idea trade X for Y
best-known, lead, saw, steel, iron ore, mine, rubber, imported, brass, glue, literally, to cooperate, to induce, trifling, productive efficiency, to foster, harmony,
Non-restrictive relative clauses with who (for people) and which (for things).
In this exercise, you are given two sentences. Combine the two sentences using who, which or that.
Given: Adam Smith was a famous economist. He taught at the
University of Glasgow.
Answer: Adam Smith, who was a famous economist, taught at the
University of Glasgow. OR
Given: Glasgow is a city in Scotland. Glasgow has a famous
university.
Answer: Glasgow, which is a city in Scotland, has a famous university.
Passive constructions
In this exercise, you are given a sentence in the active (that is, non-passive) voice. Change it into a passive construction without identifying the "doer.".
Given: He based this book on his lectures.
Answer: This book was based on his lectures.
Hypotheticals in the Present with could and a contrary-to-fact Past Tense.
In this exercise, you are given one sentence that expresses a possibility. Make it hypothetical, or less definite, using the helping verb could.
Given: It's possible for me to study in the U.S. next year but
I'm not sure I want to.
Answer: I could study in the U.S. next year if I wanted.
Word formation with -er or -or.
In this exercise, you are given a sentence with a verb. Fill in the blank with a noun form based on the verb plus -er or -or, as suggested in brackets.
Given: He does a lot of things. He's a real ___ [er].
Answer: He's a real doer.
Word formation with -er or -or.
In this exercise, you are given a word with -er or -or. Try to figure out what verb it is based on.
Given: Tom Hanks is a famous American movie actor. He __s in
movies.
Answer: He acts in movies.
Causatives with to get.
Given a sentence with the verbs to want or to ask, change this sentence into to get causative. Use pronouns where possible, and use negative forms of to get (can't get, couldn't get, etc.).
Given: The University of Glasgow wanted Adam Smith to lecture
about economics, and he did.
Answer: They got him to lecture about economics.
<strong>Expression:</strong> to be based on. Fill in the blanks with the correct form of this expression.
<strong>Expression:</strong> for all X knows, for all X knew
Fill
in the blanks with the correct form of these expressions.
<strong>Expression:</strong> it takes X to make (or
do) Y
Fill in the blanks with the correct form of
this expression.
Expressions native of usually a person [Note also: a PLACENAME native]:
Mr. Wong is a native of Hong Kong. He is a Hong Kong native.
Adjective: native to usually an animal, plant, or thing.
The rubber tree was not native to Malaysia.
Fill in the blanks with the correct form of these expressions.
Expressions with the help of X (X is most often God or a thing.) OR with X's help (X is usually a person)
Fill in the blanks with the correct form of these expressions. Use the word in brackets for X.
<strong>Expression:</strong> not to have the slightest idea (= a stronger way to say not to have any idea)
In this exercise, you are given one sentence about (not) knowing something. Express the same idea with this expression.
Given: I know nothing about how a market economy works.
Answer: I don't have the slightest idea how a market economy works.
<strong>Expression:</strong> trade X for Y
In this exercise, you are given one sentence about a transaction. Express the same idea with this expression.
Given: Hong Kong exports manufactured goods. It imports food in return.
Answer: Hong Kong trades manufactured goods for food.
Replace the blanks with a word from the vocabulary list above. Use each word only once.
Comprehension Exercise: Watch the video clip again, and then read the following statements. If the statement summarizes the film clip correctly, say or write, "Yes, it is true that . . . ." or "Yes, Friedman says that/claims that/tells us that . . . . If it summarizes the film clip incorrectly, say, "It is not true that. . . . In fact . . . ."