(一)主题词汇盘查
(已会词汇，在□内打“√”；欠熟练词汇，多翻阅识记)
①inject □ ②sandstorm □
③drought □ ④landslide □
⑤slippery □ ⑥crack □
⑦predict □ ⑧extinct □
⑨occur □ ⑩distribute □
?terrible □ ?shortage □
?challenge □ ?irreversible □
?frighten □ ?decoration □
?strike □ ?issue □
?layer □ ?warning □
