I. Please read the new words after the speaker. 

delight                         [diˈlait] v.使愉快；使高兴

available                      [əˈveıləbəl]a.可获得的；可用的

unfortunate                  [ʌnˈfɔ:tfənət]a.（某人）不幸的，倒霉的

remarkable                   [rıˈma:kəbəl]a.不寻常的；奇特的；值得注意（赞扬）的

exist                              [igˈzist] v.存在；实际上有

in sb.＇s imagination   只存在（发生）于某人的想象之中

science fiction              [ˈfıkfən] n.科幻小说

ingenious                      [inˈdʒi:niəs] a.（计划、主意或物体）精巧的，巧妙的

Sherlock Holmes          [fз:lɔk ˈhəulmz]      夏洛克·福尔摩斯

（英国侦探小说家亚瑟·柯南·道尔塑造的侦探人物）

manners                        [ˈmænəz] n.［pl.］礼貌；礼仪

eagerness                      [ˈi:gənis]n.渴望；热切

beyond                          [ biˈjɔnd]prep.超出（某个数量、水平或限度）

compared with               与······相比

addup to                        总括起来意味着

turn up                           （突然）出现

concentrate                    [ˈkɔnsəntreit] v.集中注意力；专注

ought to                         [ˈɒ:t tu:] modalverb 应该；应当

suffer                             [ˈsʌfə]v.（身体或精神上）受苦，遭受（痛苦）

II. Please learn the words in the video.

III. Test

I. Please learn the following expressions.

II. Please watch a video clip and get to know the Mogao Caves.

Dunhuang, in Gansu Province in China, is at an important point on the Silk Road. Among all the attractions in Dunhuang, the Mogao Caves are the most famous around the world. 

The Mogao Caves are home to a rich collection of Buddhist artworks — more than 3,000 colored sculptures and 45,000 square meters of murals are located across over 700 man-made caves carved along a rock face.

In Cave 275, one of the oldest caves in Mogao, for example, there is a relatively large statue in front of the main wall. The statue, 3.4 meters tall, is the largest of the early period. The statue of Maitreya has a round face and a calm expression. On the handsome face, there are very long ear loops, a straight nose, well-shaped lips, and lightly protruding eyes, which are looking down compassionately on the visitors. Wearing a crown containing three round jewels, he sits cross-ankled. His sitting pose and decoration, as well as the triangular backrest, suggest influences from Central Asia.

Murals in this cave illustrate the Buddhist stories. Each of them consists of several episodes within a single rectangular space, with different depictions of the same person to represent different times and places within the same scene. The main figures in all scenes are always larger in size. All the figures are dressed and decorated in Central Asian style.

These sculptures and murals not only reflect part of the social life from the 5th century to the 14th century, but also show the development of plastic arts during that time. As evidence of the evolution of Buddhist art in the northwest region of China, the Mogao Caves are of unmatched historical value. In 1987, the UNESCO listed the Mogao Caves as one of the World Heritage Sites.