把下面的算式补充完整。（1）18.7-16.4+（ ） =18.7+（ ）-16

阅读下列应用文及相关信息，并按照要求匹配信息，请在答题卡上将对应题号的相应选项字母涂黑。

在中学生夏令营中，以下同学以其观点组织各自的讨论和交流组。

A． Cao A'min, 18

Xuanhua No 1 High School, Hebei

Keeping pace with teachers is a good way to study．Teachers are experienced and their plans are systematic．But remember to work m a way that suits you．It's also important to team from past mistakes．Keep a notebook to make a record of the mistakes you make - it'll help you avoid making the same ones later．

B．Zhang Zilu, 17

Xinyu No 1 High School, Jiangxi

This time of life may be hard, but you're not alone．You may be busy studying, but you can show your care by calling yow friends or sending a short message．Don't let your friendships die．Some boys and girls in my class were in love, but I'd advise against a relationship at this stage．

C. Zhan Yu, 17

Huanggang High School, Hubei

It’s as important to live well as it is to study well, I think. I went to bed no later than 11:30 pm. It put me in the right mood for the next day. I didn’t follow a special diet (饮食), but I did make sure I ate a nutritious  breakfast each day.

D. Ju Shuntian, 18

Yantai Economic and Technological Development Zone Senior High School, Shandong

The person who plays well, studies well. Having a lot of schoolwork doesn’t mean having to give up on every other activity. I played basketball or took a walk to relax when I felt tired. Time out is not a waste of time but helps you study more efficiently.

E. Zhang Qingzhou, 17

　　Dongtai High School, Jiangsu

Besides taking the big exam, you have other choices for college. I took the independent enrollment (自主招生) exam held by Peking University and some other students even prepared to study abroad. Pay attention to any relevant information you can find, whether it’s from school, the news media or another source.

F. Wu Dandan, 18

Liaocheng No. 1 High School, Shandong

Besides learning from the textbooks, students can also learn a lot from traveling from place to place. In different places you will see different things, meet different people and have different experiences. If you are curious enough, you can explore deeper into the area and obtain more useful information, which serves as your new knowledge.

下面同学各自感兴趣的内容或需要解决的问题，请配对他们最适合参加的讨论组。

小题1:Zhang Xu is an active and energetic boy who enjoys many sports like swimming, football, badminton, cycling and jogging. He has a lot of friends at school and they often spend a lot of time on rivers, fields and mountains. Is it good to spend so little time in the library? How to allocate time between academic lectures and outing? That's his problem.

小题2:Xiao Lili has much difficulty m catching up with her classmates m chemistry and physics. But her superiority lies in music and English, so she is dreaming of becoming a professional singer. She hopes that her strong points can help pave her way to future success. "Can I go to a musical college without taking NMET?" she wonders.

小题3:Guo Jie is a hardworking boy but, unfortunately, he gets low marks in every test. He is always busy with his own study plan. When he didn’t finish his work the earlier day, he will bury his mind in his work to fulfill his plan, ignoring the teacher’s lectures. “How can I raise my marks?” he is puzzled.

小题4:Song Siwei is a slim and pretty girl, who works hard at all her lessons. But she was so absorbed in her studeies that she is even unwilling to tear herself off at meal times. She is always the last to leave the classroom and the first to arrive. She starts to feel dizzy and have headaches. “What might happen to me?” she wonders.

小题5:Zhang Lan is a charming girl who is active both in the classroom and on the sports field. She is kind to all her classmates. Some boys in her class tend to talk to her at every possible opportunity and even invite her to meals. That makes her pleased but costs her quite some time. She doesn’t know whether it is right to accept kindness from the boys.

下列有关慢性牙髓炎的叙述，哪项不正确

A．有轻度的叩痛

B．有阵发性隐痛

C．无剧烈的自发痛

D．一般可定位患牙

E．多为夜间疼痛

Yesterday evening, I_____ along the street when I suddenly met my math teacher. 

A. walk        

B. walked

C. was walking    

D. am walking

阅读理解。

                                                               The Book Of Life

     So far, scientists have named about 1.8 million living species (物种), and that's just a small number of

what probably exists on Earth. With so many plants, animal, and other living things covering the planet, it

can be tough to figure out what type of grass is growing by the roadside or what kind of bird just flew by.

     A soon-to-be-started Web site might help. An international term of researchers has announced the creation

of Web-based Encyclopedia (百科全书) of Life (EoL). The project aims to list every species on Earth in a

single, easy-to-use reference guide.

     To get the encyclopedia started, the creators will use information from scientific databases (数据库) that

already exist. And eventually, in special sections of the site, non-scientists with specialized knowledge will

come to help. Bird-watchers, for example, will be able to input what birds they've seen and where. To make

sure the encyclopedia is accurate, scientists will review much of the information added to it.

     As the EoL develops, you might find it useful for school projects. The site will feature (以…为特色)

special pages for kids who are studying ecosystems in their neighborhoods. Another convenient feature of

the EoL is that you'll be able to pick the level of detail you want to see to match your interests, age, and

knowledge.

     It now takes years for scientists to collect all the data they need to describes and analyze species. The

creators of the Encyclopedia of Life hope that their new fool will speed up that process.

1. The Web based EoL aims to _____.

A. fine out what covers the earth

B. list all living things on Earth

C. work out the number of birds

D. save the existing plants

2. One characteristic of the EoL is that _____.

A. it is run by school students

B. it focuses on different types of grass

C. it provides different levels of information

D. it allows non-scientists to review its data

3. In the last paragraph, "that process" means _____.

A. analyzing species

B. creating a new tool

C. collecting data

D. describing species

在如下数组声明语句中Dims（4，4）AsInteger，第一个数组元素的引用形式是（）。