Tham khảo tài liệu 'focus on ielts foundation students book phần 4', ngoại ngữ, ngữ pháp tiếng anh phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | 5 k sporting chance Focus on grammar Present perfect 1 The extracts below illustrate three important uses of the present perfect. Underline examples of the present perfect in each one. Then choose the TWO statements A-C which correctly describe that use of the present perfect. Cross out the incorrect statement. Japanese researchers have found a cheap convenient and drug-free way for diabetics to lose weight and improve their insulin sensitivity. It is called walking. I. - At the-11 ttwntiu I I tAve been. here I krwe learnt ĨŨ WMch ữrưL I luwe also aưưLe friendsfronv all over tde world. Following yesterday s earthquake the president has declared a state of emergency. The present perfect tense is useful in the Speaking module for talking about your life and experiences. Its also needed in certain Writing tasks particularly for describing changes and developments in Task 2. 1 2 3 1 In extract 1 the present perfect tense is used to talk about A an action event which happened in the past. B when the action event happened. c an action event which has a present result. 2 In extract 2 the present perfect tense is used to talk about A a situation which began in the past. B a situation which continues up to the present. c a situation that finished in the past. 3 In extract 3 the present perfect tense is used to talk about A an action event that happened some time ago. B an action event that happened recently. c an action event which has a present result. KEY LANGUAGE Present perfect p. 151 Adverbs p. 140 2 We use the present perfect when there is a strong link between the past and the present. Complete these sentences using just already never yet and a suitable verb in the present perfect tense. 1 I m not hungry. I . 2 I m afraid I can t tell you anything about New York. I . 3 My brother is having a big celebration tomorrow. He . 4 Did you pass the exam T don t know. I . 5 It s too late to board the plane. The check-in desk . 3 Write true sentences about yourself using the .
