题目

试管内有一些植物油，加入配制的消化液，充分振荡后，置入37℃的温水中，一段时间后植物油不见了，配制的消化液最合理的一组是( ) A、胰液、肠液、胆汁      B、胃液、胆汁    C、唾液、胃液、肠液      D、肠液、胃液 答案：A阅读理解。     In Canada and the United States, people enjoy entertaining (请客) at home. They often invite friends over for a meal, a party, or just for coffee and conversation.      Here are the kinds of things people say when they invite someone to their home:     "Would you like to come over for dinner on Saturday night?"     "Hey, we're having a party on Friday. Can you come?"     To reply to an invitation (回应邀请), either say thank you and accept (接受) , or say you're sorry and give an excuse:     "Thanks, I'd love to. What time would you like me to come?" or "Oh, sorry. I've tickets for a movie."     Sometimes, however, people use expressions that sound like invitations but which are not realinvitations. For example:     "Please come over for a drink sometime."     "Why not get together for a party sometime?"     "Why don't you come over and see us sometime soon?"     They are really just polite way of ending a conversation. They are not real invitations because theydon't mention (提到) a specific (确定的) time or date. They just show that the person is trying to befriendly. To reply to expressions like these, people just say "Sure, that would be great!" or "Yes, thanks."     So next time when you hear what sounds like an invitation, listen carefully. Is it a real invitation or isthe person just being friendly?1. Why do Canadaians and Americans often invite friends for meals at home?A. Because they can save time.               B. Because they can spend less money. C. Because they enjoy entertaining at home.  D. Because they have modern and beautiful houses. 2. Which of the following is a real invitation?A. If you're free, let's go for a drink sometime. B. Please go to the cinema with me some day. C. Would you like to have a cup of tea with us sometime?D. I've two tickets here. Can you go to the concert with me?3. If people say "Let's get together for lunch some day", you just say "____".A. That would be nice.    B. How about this weekend?C. Oh, sorry. I'm busy.    D. That's great. I'll be there on time. 4. People use " an unreal invitation" in order to show that ____. A. they're trying to be friendly.  B. they're try to be helpful. C. they're trying to make friends with others.  D. they haven't got ready for a party yet. 5. What's the meaning of the phrase "sound like"?A. 看上去像       B. 听起来像       C. 闻起来像        D. 摸起来像