Language课件2
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subject of a sentence.
a. (preferable) It is certain that we would not be able to understand Old English today. =
(correct) That we would not be able to understand Old English today is certain.
B. when the subject is a to-infinitive.
a. (preferable) It is hard to master a
foreign language. =
B. when the subject is a to-infinitive.
a. (preferable) It is hard to master a
computer is important.
C. when the subject is a v-ing form.
C. when the subject is a v-ing form.
a. ( preferable) Walking in the wood is comfortable . =
C. when the subject is a v-ing form.
a. ( preferable) Walking in the wood is comfortable . =
(correct) It is comfortable walking in the wood.
b. (preferable) Travelling to Beijing takes up a lot of my time. =
important. correct
It is important that we should improve our oral
English.
preferable
Preparatory subject "it"
•Read the notes on page 30.
Preparatory/ Empty subject “it”:
That we should improve our oral English is important.
That we should iBaidu Nhomakorabeaprove our oral English is important.
It is important that we should improve our oral English.
a. ( preferable) Walking in the wood is comfortable . =
(correct) It is comfortable walking in the wood.
b. (preferable) Travelling to Beijing takes up a lot of my time. =
Which one is better?
That we should improve our oral English is important.
It is important that we should improve our oral English.
Which one is better?
C. when the subject is a v-ing form.
a. ( preferable) Walking in the wood is comfortable . =
(correct) It is comfortable walking in the wood.
C. when the subject is a v-ing form.
is hard. b. (preferable) It is important to know
how to use a computer. =
B. when the subject is a to-infinitive.
a. (preferable) It is hard to master a
a. It seems that he speaks two languages. =
2. It can also be used before seem, appear, happen, turn out and prove as the preparatory subject of a sentence.
subject of a sentence.
Preparatory/ Empty subject “it”:
1. We can use it as a preparatory subject A. when we use a noun clause as the
subject of a sentence.
Exercise A (page 31)
Exercise A (page 31)
2. To know what they mean requires a good understanding of their behaviour.
Preparatory/ Empty subject “it”:
1. We can use it as a preparatory subject
Preparatory/ Empty subject “it”:
1. We can use it as a preparatory subject A. when we use a noun clause as the
(correct) Whether English will continue changing in the future is easy to answer.
b. (preferable) It is easy to answer whether English will continue changing in the future. =
b. (preferable) It is easy to answer whether English will continue changing in the future. =
b. (preferable) It is easy to answer whether English will continue changing in the future. =
2. It can also be used before seem, appear, happen, turn out and prove as the preparatory subject of a sentence.
2. It can also be used before seem, appear, happen, turn out and prove as the preparatory subject of a sentence.
a. It seems that he speaks two languages. = He seems to speak two languages.
2. It can also be used before seem, appear, happen, turn out and prove as the preparatory subject of a sentence.
That we should improve our oral English is important.
It is important that we should improve our oral
English.
preferable
Which one is better?
That we should improve our oral English is
a. It seems that he speaks two languages. = He seems to speak two languages.
b. It happens that my new neighbour comes from my home town. =
2. It can also be used before seem, appear, happen, turn out and prove as the preparatory subject of a sentence.
a. It seems that he speaks two languages. = He seems to speak two languages.
b. It happens that my new neighbour comes from my home town. = My new neighbour happens to come from my home town.
(correct) Whether English will continue changing in the future is easy to answer.
c. (preferable) It depends on the style of writing when we use certain words. =
foreign language. = (correct) To master a foreign language
is hard.
B. when the subject is a to-infinitive.
a. (preferable) It is hard to master a
foreign language. = (correct) To master a foreign language
(correct) It takes up a lot of my time travelling to Beijing.
Tip
Tip
We usually use the preparatory subject it with a clause or to-infinitive (preferable), but with the v-ing form we prefer the real subject at the beginning.
foreign language. = (correct) To master a foreign language
is hard. b. (preferable) It is important to know
how to use a computer. = (correct) To know how to use a
a. (preferable) It is certain that we would not be able to understand Old English today. =
Preparatory/ Empty subject “it”:
1. We can use it as a preparatory subject A. when we use a noun clause as the
b. (preferable) It is easy to answer whether English will continue changing in the future. =
(correct) Whether English will continue changing in the future is easy to answer.
c. (preferable) It depends on the style of writing when we use certain words. =
(correct) When we use certain words depends on the style of writing.
B. when the subject is a to-infinitive.
a. (preferable) It is certain that we would not be able to understand Old English today. =
(correct) That we would not be able to understand Old English today is certain.
B. when the subject is a to-infinitive.
a. (preferable) It is hard to master a
foreign language. =
B. when the subject is a to-infinitive.
a. (preferable) It is hard to master a
computer is important.
C. when the subject is a v-ing form.
C. when the subject is a v-ing form.
a. ( preferable) Walking in the wood is comfortable . =
C. when the subject is a v-ing form.
a. ( preferable) Walking in the wood is comfortable . =
(correct) It is comfortable walking in the wood.
b. (preferable) Travelling to Beijing takes up a lot of my time. =
important. correct
It is important that we should improve our oral
English.
preferable
Preparatory subject "it"
•Read the notes on page 30.
Preparatory/ Empty subject “it”:
That we should improve our oral English is important.
That we should iBaidu Nhomakorabeaprove our oral English is important.
It is important that we should improve our oral English.
a. ( preferable) Walking in the wood is comfortable . =
(correct) It is comfortable walking in the wood.
b. (preferable) Travelling to Beijing takes up a lot of my time. =
Which one is better?
That we should improve our oral English is important.
It is important that we should improve our oral English.
Which one is better?
C. when the subject is a v-ing form.
a. ( preferable) Walking in the wood is comfortable . =
(correct) It is comfortable walking in the wood.
C. when the subject is a v-ing form.
is hard. b. (preferable) It is important to know
how to use a computer. =
B. when the subject is a to-infinitive.
a. (preferable) It is hard to master a
a. It seems that he speaks two languages. =
2. It can also be used before seem, appear, happen, turn out and prove as the preparatory subject of a sentence.
subject of a sentence.
Preparatory/ Empty subject “it”:
1. We can use it as a preparatory subject A. when we use a noun clause as the
subject of a sentence.
Exercise A (page 31)
Exercise A (page 31)
2. To know what they mean requires a good understanding of their behaviour.
Preparatory/ Empty subject “it”:
1. We can use it as a preparatory subject
Preparatory/ Empty subject “it”:
1. We can use it as a preparatory subject A. when we use a noun clause as the
(correct) Whether English will continue changing in the future is easy to answer.
b. (preferable) It is easy to answer whether English will continue changing in the future. =
b. (preferable) It is easy to answer whether English will continue changing in the future. =
b. (preferable) It is easy to answer whether English will continue changing in the future. =
2. It can also be used before seem, appear, happen, turn out and prove as the preparatory subject of a sentence.
2. It can also be used before seem, appear, happen, turn out and prove as the preparatory subject of a sentence.
a. It seems that he speaks two languages. = He seems to speak two languages.
2. It can also be used before seem, appear, happen, turn out and prove as the preparatory subject of a sentence.
That we should improve our oral English is important.
It is important that we should improve our oral
English.
preferable
Which one is better?
That we should improve our oral English is
a. It seems that he speaks two languages. = He seems to speak two languages.
b. It happens that my new neighbour comes from my home town. =
2. It can also be used before seem, appear, happen, turn out and prove as the preparatory subject of a sentence.
a. It seems that he speaks two languages. = He seems to speak two languages.
b. It happens that my new neighbour comes from my home town. = My new neighbour happens to come from my home town.
(correct) Whether English will continue changing in the future is easy to answer.
c. (preferable) It depends on the style of writing when we use certain words. =
foreign language. = (correct) To master a foreign language
is hard.
B. when the subject is a to-infinitive.
a. (preferable) It is hard to master a
foreign language. = (correct) To master a foreign language
(correct) It takes up a lot of my time travelling to Beijing.
Tip
Tip
We usually use the preparatory subject it with a clause or to-infinitive (preferable), but with the v-ing form we prefer the real subject at the beginning.
foreign language. = (correct) To master a foreign language
is hard. b. (preferable) It is important to know
how to use a computer. = (correct) To know how to use a
a. (preferable) It is certain that we would not be able to understand Old English today. =
Preparatory/ Empty subject “it”:
1. We can use it as a preparatory subject A. when we use a noun clause as the
b. (preferable) It is easy to answer whether English will continue changing in the future. =
(correct) Whether English will continue changing in the future is easy to answer.
c. (preferable) It depends on the style of writing when we use certain words. =
(correct) When we use certain words depends on the style of writing.
B. when the subject is a to-infinitive.