Bài giảng Tiếng Anh Lớp 6 (Global Success) - Unit 11: Our greener world. Lesson 3: A closer look 2

 Grammar
 Articles
 Write a or an. Combine each pair of sentences 
 below to make a first conditional 
 sentence.
Write a / an or the.
 First conditional Fun matching
 Work in groups, A and B.
 Write the correct form of each verb 
 in brackets. Grammar Articles
 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. Write a / an or the.
1. My father is _______a doctor. doctor.
2. _______The Sun keeps _______the Earth warm.
3. _______A dolphin is _______an intelligent animal.
4. I have _______an orange shirt too.
5. My brother likes _______the blue pen, not _______the red one. Write the correct form of each verb in brackets.
1. If it (be) _______is sunny next week, we (go) _______will go on a picnic.
 2. If we (recycle) _______recycle more, we (help) _______will help the Earth.
 3. We (save) _______will save a lot of trees if we (not waste)don’t _______ waste so 
 much paper.
 4. More people (have) will_______ have fresh water if we (use) use_______
 less water.
5. If the river (not be)isn’t_______ / is not dirty, there (be) _______will be more 
 fish. Fun matching
 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?