题目内容
【题目】 People send out sky lanterns to ask for help when in trouble, but now sky lanterns ____ celebrating the festivals.
A. used to; are used to
B. used to; are used for
C. are used to; are used for
D. are used to; are used in
【答案】B
【解析】
试题分析：句意：以前人们常常在遇到麻烦时放孔明灯来寻求帮助。但是现在孔明灯用来庆祝节日。used to do过去常常做某事；be used for doing 被用来做；be used to do. 被用来做。依据句意，故答案为B。
【题目】摘录要点,阅读下面的短文，然后根据短文的内容填写表格，将信息补充完整,每空不超过3个单词。并在答题卡上将答案填写在对应题号的横线上。
Trees are greatly useful to man in three very important ways.
The first important way is that they provide man with food, wood and other products. Trees provide not only man with food, but also many animals with food. Without trees many animals could not live on the earth. It's not easy for man to live on the earth, either.
The second important way is that trees give us shade（阴凉处）.On a hot summer day, people are looking forward to having a rest under the shade of a tree after they have walked a long way. You can imagine how important the shade of a tree is to man and to animals.
The third important way is that trees help to prevent drought（旱灾） and floods（水灾).However, in many parts of the world, man has not realized the third important way. They cut trees down in large numbers. There will be fewer trees in the future.
People should protect trees, or they will find that they have lost the best friends they had in the end.
Trees are useful to man in 【1】important ways. | Trees provide man with 【2】 , wood and other products. |
Trees give man shade on a 【3】 summer day. | |
Trees help to 【4】 drought and floods. | |
If people don’t/span> protect trees, they will find they have lost 【5】 they had. | |