Check out 8B Unit1 PastPast andand PresentPresent 1.To assess students’ progress in using the present perfect tense.2.To check Students’ understanding of the contexts for using the present perfect tense versus the simple past tense.3. To assess recognition of some opposite adjectives.4. Useful expressions①It’s next to the clock tower, isn’t it?②Now, let me show you how to get to the railway station. Learning aims Have a talk with the students by using the present tense. Say the past participles of the following verbs.原形过去分词原形过去分词finishseewatchgivetravelwriterepairmake livehearownbecomefinishedwatchedtravelledrepairedlivedownedseengivenwrittenmadeheardbecome Read the conversation on Page 23.Complete it with the correct forms of the verbs.Where is the railway station? Tourist: Excuse me, I ___________ (lose) ⑴my map. I want to go to the railway station, but I can’t find it. It’s next to the clock tower, isn’t it?Millie: The railway station _________ (be) ⑵there years ago, but I’m afraid it’s not there any more. Tourist: Oh, really? I ________________ ⑶(not visit) Sunshine Town for a very long time. Things _______________ (change) ⑷a lot over the years. Millie: You’re quite right. Things have changed a lot. ________ you _______ (see) our new ⑸park?Tourist: Yes, I________ just_______ (see) ⑹it. The park s so big and beautiful.Millie: Yes, it is. It ____________ (become) ⑺a new tourist attraction in Sunshine Town. Now, let me show you how to get to the railway station… Tourist: Excuse me, I ___________ (lose) ⑴my map. I want to go to the railway station, but I can’t find it. It’s next to the clock tower, isn’t it?Millie: The railway station _________ (be) ⑵there years ago, but ...