They believe that there are transport developments ______ that will bring a lot of changes for the better.
A.out of date B.out of order
C.around the clock D.around the corner
To build a better future, we can’t ______ the issues of environmental protection from those of economic growth.
A.divide B.divorce C.distribute D.discriminate
The company established a platform in 2017 ______ collision experiments can be carried out for railway vehicles.
A.where B.when C.that D.which
假设你是红星中学高三学生李华。你的英国笔友Jim来信询问你校开展体育活动的情况。请你给他回信，内容包括：
1. 你校开展的体育活动；
2. 给学生带来的益处。
注意：1. 词数不少于50；
2. 开头和结尾已给出，不计入总词数。
Dear Jim,
_______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
Yours,
Li Hua
假定英语课上老师要求同桌之间交换修改作文，请你修改你同桌写的以下作文。文中共有10处语言错误，每句中最多有两处。每处错误仅涉及一个单词的增加、删除或修改。
增加：在缺词处加一个漏字符号（∧），并在其下面写出该加的词。
删除：把多余的词用斜线（\）划掉。
修改：在错的词下画一横线，并在该词下面写出修改后的词。
注意：
1. 每处错误及其修改均仅限一词；
2. 只允许修改10处，多者（从第11处起）不计分。
Dear Kate,
A serious problem makes me very worried. So I am writing in hope that you can help me out.
As is known to us all is that mobile phones make it easily for us to communicate. Therefore, in the meantime, they also lead to a great many of problems. I have become a victim of overusing the mobile phone. I am so addicted to it to focus on my studies. Every possible means had been tried to rid itself of its bad effects, but none works. I know it is time I take action to solve the problem. Could you give me some advices?
Looking forward to your early reply.
Yours,
Li Hua
阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式。
“A heavy ion (离子) cancer treatment system developed by Chinese researchers will soon be put into 1. (operate) in northwest China’s Gansu Province,” researchers said.
The system will be used in a hospital in Lanzhou, capital of Gansu, 2. is mainly devoted to treating cancer patients with the technology of heavy-ion accelerators.
Cancer radiation treatments 3. (employ) heavy-ion accelerators can attack 4. target with high-energy electrons (电子) to kill cancer cells.
Compared to traditional therapy (治疗) such as radiation, heavy ion treatment 5. (consider) to have more balanced properties with 6. (little) radiation on healthy cells. The treatment period is shorter, 7. the therapy could more 8. (effect) control cancer cells, according to Wang Xiaohu, deputy director of the Gansu Provincial Cancer Hospital.
Researchers with the Institute of Modern Physics under the Chinese Academy of Sciences started basic research 9. the technology in 1993 and developed the accelerators in 2015.
A report published by the National Cancer Center in 2017 showed that China has nearly 25 percent of the world’s new cancer cases, with 10,000 cancer patients 10. (add) per day. Every year, there are two million cancer-induced deaths. Lung, breast and stomach cancers are the most common types.
