The world becomes a better place when we not only recognize that everyone has bad days，but when we also care enough to act accordingly.No matter what kind of bad experience we experience，we should treat it actively.Fourth-grade teacher Rachel Harder recognized this，and she found an amazing way to help out both her students and their families.
  A few years ago，the Kansas teacher attended a trauma（心理創(chuàng)傷）conference.She learned that some police stations partner with schools so they can let teachers know when one of their students has a police encounter，something that could cause them to need extra care or attention.A year after the conference，Rachel had a student with autism（自閉癥）who frequently had tough days.To support the student，Rachel told his mom to simply text her "handle with care" to let her know when it was going to be one of those days.
   The simple method was such a success that Rachel decided to send all her students home with a note for their parents.It explained what the "Handle with Care" system was and how they could take advantage of it.In no time，parents began to show their appreciation for Rachel's incredible act of kindness.But Rachel's sympathy didn't end with her class.Word spread of the amazing system，and teachers across the country began giving it a shot in their own classrooms.Printouts can be found on the Smart School House website，and the feedback has been extremely positive!
   Even though teachers can sometimes tell when a student is having a tough day just by the way they're acting，Rachel said these simple texts allow educators to make minor adjustments in advance that，in turn，make the whole day better for everyone. "It's important for me to give kids a few minutes of extra time or space，" she said， "and it's easy to give."

（1）What does the underlined word "this" in paragraph 1 refer to？

C

C

A．The tough time in life.
B．The beauty of nature.
C．A positive attitude to hardship.
D．An extreme working style.
（2）How did Rachel help the student with autism？

B

B

A．By getting assistance from some police stations.
B．By knowing his state at home from his mother.
C．By discussing his trauma in a conference.
D．By supporting him to do what he wants.
（3）Why did Rachel send notes to the parents of all her students？

D

D

A．To prove the behavior is efficient.
B．To explain the kindness to the parents.
C．To gain the parents' sympathy for herself.
D．To show her concern about every student.
（4）Which of the following can best describe Rachel？

A

A

A．Responsible and considerate.
B．Energetic and grateful.
C．Curious and courageous.
D．Humorous and warm-hearted.