A closer look 2 | Tiếng Anh 6 - Tập 2 | Unit 11: Our greener world - Lớp 6 - Global Success & Bộ Giáo Dục - Đào Tạo

(Page 50)

👉A CLOSER LOOK 2

   Grammar
   Articles

   💡Remember!
     There are two kinds of articles in English: the indefinite article (a/an) and the definite article (the).
     We use a / an
     - with singular countable nouns when we are talking about them in general.
       Example: An ant is a tiny animal.
     - after the verbs to be and to have.
       Example: I'm a student. / I have an eraser.
     We use the
     - with singular or plural nouns when we already know them or when they are mentioned for the second time.
       Example: The bike in front of her house is nice.
     - with nouns which are unique.
       Example: The air is dirty.

1. Write a or an.

   1. _____ egg
   2. _____ friend
   3. _____ sink
   4. _____ arm
   5. _____ mouth
   6. _____ onion
   7. _____ umbrella
   8. _____ classmate

(Page 51)

2. Write a/an or the.

   1. My father is _____ doctor.
   2. _____ Sun keeps  _____Earth warm.
   3. _____dolphin is  _____intelligent animal.
   4. I have _____ orange shirt too.
   5. My brother likes _____ blue pen, not _____ red one.

   First conditional
   First conditional sentences describe things which are possible and likely to happen in the present or the future.
   If + subject + V (present simple), subject + will / won't + V (base form) 
                    If-clause                                          main clause
   Example: If you use less paper, you will save a lot of trees.

3. Write the correct form of each verb in brackets.

   1. If it (be) _____ sunny next week, we (go) _____ on a picnic.
   2. If we (recycle) _____ more, we (help) _____ the Earth.
   3. We (save) _____ a lot of trees if we (not waste) _____ so much paper. 
   4. More people (have) _____ fresh water if we (use) _____ less water.
   5. If the river (not be) _____ dirty, there (be) _____ more fish.

4. Combine each pair of sentences below to make a first conditional sentence.

   1. The air isn't fresh. People cough.
     ____________________________________________________________.
   2. The water is dirty. A lot of fish die.
     ____________________________________________________________.
   3. We cut down trees in the forest. There are more floods.
     ____________________________________________________________.
   4. There is too much noise. People don't sleep.
     ____________________________________________________________.
   5. There is no water. Plants die.
     ____________________________________________________________.

5. GAME Fun matching

   Do they match?
   Are there any funny sentences?

   A. Write five if-clauses
   B. Write five main clauses

   Work in groups, A and B.
   Group A secretly writes five if-clauses on a sheet of paper.
   Group B secretly writes five main clauses on another sheet of paper.
   Match the if-clauses with the main clauses.
   Do they match? Are there any funny sentences?