用方框中所给单词的适当形式填空，每词限用一次。            

worry,  they,  shark,  sleepy,  towards

(1) Take some rest after lunch and you won't feel ____ in the afternoon. .

(2)When the child saw her parents waiting at the school gate, she ran ____  them.
(3)Don't ____  about your exams, everything will be fine.
(4)To protect____ , scientists suggest the people stop fishing in some parts of the ocean.
(5)My host family is really nice .They try____  best to make me feel at home .

计算。

3×2-3=____         3×1＝____

3×2+3＝____        3×3＝____

The text tells us            life story of Elias, who left            school and worked in a gold mine.

世界上最小的开花结果植物是澳大利亚的出水浮萍，其果实的质量只有0.000 00076克．用科学记数法表示这个质量是____克．

1914年出版的《单级国文教科书》第八册记载辛亥革命如下：“我国革命之役，起于辛亥之秋，不久临时政府成立。清廷遣使议和，历时未决，内阁总理袁世凯调停期间，隆裕太后及宣统帝遂逊位让国。临时政府迁于北京。国民以袁世凯有大功，更举为临时大总统。翌年十月国会选举正式总统，袁世凯当选。政府改组，列邦承认，我国基础由是始定。”教科书对辛亥革命的描述（    ）