New words：

primitive [ˈprɪmətɪv] adj.原始的；远古的；发展水平低的；落后的

Sample Sentences：

A primitive way of making a fire is by rubbing two stones together.

Primitive people lived in caves and made tools from stones and animal bones.

New words：

refuge [ˈrefjudʒ] n.避难所；庇护；慰藉；庇护者

seek refuge 寻避难；寻
take refuge 避难；躲避
wildlife refuge 野生动物保区

Sample Sentences：

They took refuge in a cave yesterday.
The cat took refuge from the dog behind a tree.
The tourists were seeking refuge from the storm.
A wildlife refuge is a safe place for animals with no factories or hunters allowed.

New words：

refugee [ˌrefjʊˈdʒi] n.难民；避难者；逃亡者
refugee camp 难民营;收容所

Sample Sentences：

There is a lack of medical supplies in the refugee camp.
We have also moved more than 26,000 refugees to safer locations.
The refugee camp is suffering from a shortage of food and supplies.

New words：

victim [ˈvɪktɪm] n.受害者；牺牲品；罹难者；罹病者

Sample Sentences：

Two crash victims were admitted to the local hospital.
Thousands of earthquake victims are still waiting to be rehoused.
Police have confirmed that the victim was a computer programmer.

New words：

attribute [ˈætrɪbjuːt] n.属性；特征；性质；品质；象征
attribute [əˈtrɪbjuːt] v.把…归因于；认为…是由于；认为是…所为(或说、写、作)

Sample Sentences：

The crown is an attribute of kingship.
Patience is one of the most important attributes in a teacher.

She attributes her success to hard work and a little luck.
Fewer than 20 finished works are generally attributed to da Vinci.

kingship [ˈkɪŋˌʃɪp] n.国王身份；王位