方程$\frac{x}{x+1}=\frac{1}{2}$的解是____．

    Michelle Obama is the first lady of America. She visited China on March 20th, 2014. When she met the president Xi, she wore a red dress. She said her red dress is always ready for the important moment. Do you know she is also the first lady of fashion American?
    Every first lady since Lou Hoover (except Bess Truman) has appeared in the high-fashion magazine, Vogue. But Mrs. Obama is only the second to appear on the cover. She appeared wearing a pink silk dress by Jason Wu. When she was interviewed by the editor of Vogue, Mrs. Obama said what she wears is always paid attention to by many people. “I'm not going to pretend that I don't care about it.” she said. Most cover models have their clothes chosen for them by Vogue, or at least editors work as advisers. However, Mrs. Obama did choose outfits for the Vogue photos from labels(商标) she had worn before. “She doesn't need any help. She loves fashion and knows what works for her,” Talley said. “She's never had a conversation with me about, `What do you think?' or `How did this look?' And I'm glad for that.”

子女与父母相似，是由于子女继承了父母的（    ）

综合性学习。

学完了本课，班里开展了以“生物入侵知多少”为主题的语文综合性学习活动，请你参加并完成以下任务。

                                                                                Life is difficult.
   But life is no longer difficult when we truly understand and accept it. Most people do not fully see this truth. Instead, they complain about their problems and difficulties. They think life should be easy.
   What makes life difficult is the process of facing and solving problems. Problems make us sad or lonely or angry. These are uncomfortable feeling. 1) Since life has lots of problems, it is always difficult and full of pain and joy as well. However, when we successfully solve them, we can feel that life is very interesting and pleasant.2) __________ are serious tests that can tell _______ from failure. In school we set problems for the students and encourage them to learn well. 3) We learn through the pain of meeting and working out problems. For this reason, wise people learn to face bravely but to deal with the difficulties in their life.
____ 将（1）句译成英文
____ 在（2）句的空白处填入适当的词使句意完整、上下文通顺
____ 将（3）句译成中文
____ We get knowledge in the process of solving the problems.
____  从文中找出最能表达该短文主题的句子