A Challenging Hunt

    A woman answered her front door and found two boys holding a list. "Lady," one of them explained, "we are on a treasure hunt, and we need three grains of wheat, a pork-chop bone and a piece of used carbon¹ paper to earn a dollar. ""Wow," the woman replied, "who sent you on such a challenging² hunt?" "Our baby-sitter's boyfriend. "Notes:
    (1) pork-chop 猪肉排(2) carbon paper复写纸Exercises:
    根据短文回答问题：
    ①The list the two boys were holding must have been about _____.
    A. the name of the baby-sitter's boyfriendB. where the two boys should goC. the lady's addressD. the things that the two boys should hunt② Where did the two boys meet the woman?
    A. on the-streetB. on the roadC. in the backyardD. at her front door③ Why were the boys on the hunt?
    A. Because their parents told them to do so,B. Because their baby-sitter was not home.
    C. Because their baby-sitter's boyfriend wanted to stay with her alone.
    D. Because it had bee their usual game.
    ④ The woman's attitude towards the boys' act was that_____ .
    A. she was very happyB. she was very angryC. she was a bit disappointedD. she was a bit surprised⑤ From the passage, we may conclude³ that______ .
    A. it would take the boys a long time to gather all the required thingsB. the woman would give all the required things to the boysC. the boys were cheated by the baby-sitter's gameD. the baby-sitter ran away with her boyfriend11.富有挑战性的搜寻一个妇人打开前门，看到两个男孩手里拿着一张字条。“夫人，”其中一个解释道，“我们在寻宝。我们需要三颗麦粒、一块猪排骨、一张用过的复写纸来挣一美元。”
    “哦，”那位妇女回答道：“谁让你们作这样富有挑战性的搜寻的？”
    “是我们保姆的男朋友。”

1 carbon   

n.碳元素

参考例句：

• Diamonds are pure carbon.钻石是纯净的碳。
• Carbon is an element,while carbon dioxide is a compound.碳是一种(化学)元素，而二氧化碳则是一种化合物。

2 challenging   

adj.大胆的(复杂的，有前途的，挑战的)；n.复杂(有前途，大胆，挑战)

参考例句：

• She performed the most challenging task without a mistake.她毫无差错地完成了这一最富有挑战性的任务。
• We have changed the course to make it more challenging.我们改了课程以使其更具挑战性。

3 conclude   

vt.结束时说；（经推理）相信；达成；vi.结束，终结

参考例句：

• From the evidence I must conclude that you are wrong.从证据看，我敢断定你错了。
• I would like to conclude with a few points.我想用几点来做个结论。