阅读字练

I.Readandchoose（阅读短文,选择最佳答案）： I still remember the first time I went to Hainan Island. It is in the 1 ofChina. My mother and I 2 there by airplane. The airplane took two to San Ya. We swam in the sea and 3 on the sand at the beach. evening, we ate seafood at a 4 We took many pictures there. We happy. hours In the 5     

孟买的圣诞节

We arrived in Bombay early in December, all agog to see the wonders of one of India principal cities and looking ahead to visiting Delhi, Agra and the Taj Mahal, even the Khyber Pass, Afghanistan and Karachi. We accomplished only the first of these. After one night in Bombay we awoke to the news that India and Pakistan were at war.     

阅读操练

A．Read and answer（阅读短文,回答问题）： It＇s Saturday. We have no lessons. The sun is shining. My friends and I can go to the park and have a picnic. We meet at the Huaihai Road Underground Station at about ten o＇clock in the morning. And then we get to the park by train at about half past ten. We fly a kite and row a boat. It＇s time for lunch.     

What Do Tests Test?

Howard Gardner, the John H. and Elisabeth A. Hobbs Professor in Cognition and Education at the Harvard Graduate School of Education and the "father" of multiple intelligences theory, weighs in on the issue of high-stakes testing in this commentary: "We must proceed cautiously before we place students' minds and hearts at risk with tests of dubious quality whose meaning can be over-interpreted and whose consequences can be devastating," writes Gardner.     

A Special Spring Festival

We celebrate the Spring Festival at home each year.However,this Spring Festival is a bit of~① special for me.We didn’t stay at home but took a trip to Yunnan.We visited a lot of interesting places in Dali likes~② the Stone Forest,Cangshan Mountain and Erhai Lake.On Spring Festival Eve,we had a big dinner in a restaurant.     

How We Teach English at Zhaotong Teacher's College

We arrived at Zhaotong Teacher's College in September 1996. We were teaching oral English and listening comprehension, as well as British and American culture. The students were afraid of us, they did not dare to speak to us in or out of the classroom, and although they had many questions about our homeland, lifestyle and culture, they never asked them. Now, 8 months later, everything is different. We have tried to create an English environment in the English department by giving all     

谢谢您,迪薇莜夫人

We were sitting in her classroom, giggling,jabbing each other and talking about the latestinformation of the day, like the peculiar purple-colored mascara Cindy was wearing. Mrs. VirginiaDeView cleared her throat and asked us to hush."Now," she said smiling, "we are going todiscover our professions." The class seemed to gasp in unison. Ourprofessions? We stared at each other. We were only13 and 14 years old. This teacher was nuts.That was pretty much how the kids looked atVirginia De…     

新目标七年级(上)Unit 11练习

Ⅰ.根据句意及首字母,写出单词,使句子意思完整。1.What do you o____do?2.Tom a____works hard at Chinese.3.We have supper at a____7:00.4.We are b____with work,so I have no time to play.5.The students l____school at4:30in the afternoon.6.My parents and I all watch the CCTV N____at7:00every evening.7.Please check the bus s____.Make sure when we leave.8.I get up early and p____singing every morning.9.We usually do eye e____after the second class in the morning.10.I!ll write to you a____I get the…     

THE FOUR SEASONS iN HANGZHOU

The spring in Hangzhou is full of vigor. In spring, the ~lowers are growing and the birds are singingl We often go to the West Lake in spring. Look at West Lake, it looks like a mirror. You can see the reflection of the sky, the clouds and the bridge in the lake. The lake is calm without a ripple.     

主流形和非线性维数化简的切向空间校正

We present a new algorithm for manifold learning and nonlinear dimensionality reduction. Based on a set of unorganized da-ta points sampled with noise from a parameterized manifold, the local geometry of the manifold is learned by constructing an approxi-mation for the tangent space at each point, and those tangent spaces are then aligned to give the global coordinates of the data pointswith respect to the underlying manifold. We also present an error analysis of our algorithm showing that reconstruction errors can bequite small in some cases. We illustrate our algorithm using curves and surfaces both in 2D/3D Euclidean spaces and higher dimension-al Euclidean spaces. We also address several theoretical and algorithmic issues for further research and improvements.