'Good' Observation Lesson teaching Sentence Forms

In the new 2015 English Language GCSE, students can gain extra marks by noticing sentence forms such as interrogative or exclamatory sentences.
In this resource, there is a worksheet and powerpoint for a full lesson aimed at KS3 students who are new to sentence forms. It will also be useful for lower ability KS4 or a shorter class activity to refresh learning of sentences forms.
I used this lesson to get my current position in my new school. The worksheet will need to be printed for the students and it includes extension tasks to challenge those who might find this easy.
There is also an extra slide at the end so the lesson can be applied to a specific text, e.g. find the sentence forms when Scrooge first encounters Fred in ‘A Christmas Carol’.