"Unit Grammar Focus" The Internet Connects Us PPT

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"Unit Grammar Focus" The Internet Connects Us PPT

Part One: Textbook Documents

1. If we want to have a meeting, I can send the invitation online.

If we want to have a meeting, I can send out an invitation online.

2. If I work hard this evening, I will complete my research.

If I work hard tonight, I will finish my research.

3. And if a friend lives far away, the Internet makes it easy to stay in touch.

And if a friend lives far away, the Internet can make staying in touch easy.

4. Some of the disadvantages can become real problems if we don't take care.

Some of the downsides can really become a problem if we're not careful.

5. If I want to go to some new places, I can easily find my way.

If I want to go somewhere new, I can easily find my way.

Unit Grammar Focus PPT, Part 2: Grammar Exploration

A sentence consisting of a main clause and one or more subordinate clauses is called a compound sentence. The clause used to modify the predicate verb, adjective or adverb in the main clause in a compound sentence is called an adverbial clause. Adverbial clauses can be divided into condition, time, reason, comparison, result, purpose, concession, manner and place adverbial clauses according to the meaning they express. This unit focuses on the conditional adverbial clauses introduced by if.

The clause introduced by if expresses the condition in the compound sentence, which we call the conditional adverbial clause introduced by if. The conditional adverbial clause introduced by if can be placed either in the main clause ________ or in the main clause ________. When placed before the main clause, the clause must be separated from the main clause by ________. The tenses of conditional adverbial clauses introduced by if

1. The tense of the conditional adverbial clause introduced by if should keep _______ with the main clause. If the main clause is in the simple future tense, the subordinate clause should use __________ to express the future. For example:

If I am free tomorrow, I will go to Beijing.

If I am free tomorrow, I will go to Beijing.

2. If the main clause contains ________, such as can, may, must, need, etc., the subordinate clause should use the present tense. For example:

You may be late if you don't hurry.

If you don't hurry, you might be late.

3. If the main clause is an imperative sentence, the subordinate clause should be in the present tense. For example:

Let's go shopping if you are not busy.

If you're not busy, let's go shopping.

Unit Grammar Focus PPT, Part 3: Practical Exercises

Ⅰ. Fill in the blanks with the appropriate form of the given words

1. If it _________(not snow) tomorrow, we'll have a picnic in the park.

2. I will meet him at the train station if he ________(come) by train.

3. If you ________ (be) sick, you must go to see a doctor.

4. Remember to call me if you ________ (have) any trouble.

5. She ________(miss) you if you move away.

Ⅱ.Fill in the blanks

()1.2017·Xianning—Celia, join us in the Super Summer Camp if it ______ this weekend.

—I'd love to. But nobody knows if it ________.

A. is fine; rains

B. is fine; will rain

C. will be fine; will rain

D. will be fine; rains

() 2.2017·Suizhou—What ________ if they ________ to the meeting late?

—Sorry, I don't know.

A. will happen; go

B. happened; go

C. happens; will go

D. will happen; will go

[Analysis] If in the sentence is translated as "if", it introduces the conditional adverbial clause, and the tense matching with the main clause should follow the principle of "subject-subordinate present", that is, the main clause uses the simple future tense, and the clause introduced by if uses the simple present tense, so Choose A.

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Update Time: 2024-11-22

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