(课件网) Unit 4 Adversity and courage The Present Perfect Continuous Tense Discovering Useful Structures Lead-in Watch the video and grasp the background information What event is this An expedition to Antarctica. Background Information Enjoy a video Pay attention to the RED words Enjoy a video The Present Perfect Continuous Tense I have been searching for you. I have been trying to make spaghetti. What have you been doing I have been learning tenses for the last 2 hours. It has been raining since morning. I have been wasting my energy since morning. Definition and basic structure The Present perfect continuous tense can be used to talk about events that happened in the past but they are somehow connected to the present and the action is still happening Have/has been doing I have been trying to make spaghetti. It has been raining since morning. The present perfect simple Tense / Present perfect continuous tense 1.They have eaten the pizza. 2.They have been eating the pizza. The Present perfect Tense : have/has done Present Perfect Continuous tense:have/has been doing The second sentence suggests that there is still pizza left now.They haven’t eaten all of the pizza yet. Difference1 1. She has been working for hours 2. She has worked for hours. The present perfect continuous can be used to emphasise the amount or length of time that has passed. whereas the present perfect is generally neutral. Difference 2 She has eaten three pieces of toast this morning. The present perfect is commonly used to talk about how much or how many. Difference 3 She continues to see the therapist. She's been seeing a therapist She's seen a therapist. Her session(s) have finished. The present perfect continuous often focuses on the action itself, whereas the present perfect focuses on the completion of the action. Have you seen the fiIm yet No.I haven't seen it yet. I have already seen the film. I have seen the film already . yet/ already Difference 3 I've prepared a big dinner. I've been preparing a big dinner. Sometimes we use the diference between the present perfect and the present perfect continuous to talk about diferent kinds of results in the present so you can come over. so all my pans are dirty. . Difference 4 I’ve been getting up early to work out. We can use the present perfect continuous to talk about situations that aren't permanent.Things that are not usual. I don't usually do this. I _____ to join the expedition but was _____ I _____ went aboard the ship but soon I was _____ Then I was _____ to stay and _____ meals. The ship was stuck in _____ and got _____. We _____ most all of the personal belongings but keep _____. Things on the island were going _____. Shackleton _____ for South Georgia Island to _____. Frannk and Ernest give me _____. Perhaps there is _____that we will return home beginning applied secretly turned down discovered serve allowed crushed the ice a banjo abandoned find help from b ... ...
