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【简答题】
观察下列各式：① 1+ 1 3 =2 1 3 ；② 2+ 1 4 =3 1 4 =3；③ 3+ 1 5 =4 1 5 ，…请用含n（n≥1）的式子写出你猜想的规律：______．
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【单选题】Tom's little sister wasn't __________ to go to school. [ ]
A.
enough old
B.
old enough
C.
enough young
D.
young enough
【简答题】读短文，做练习。 Hello! My name is Tom. I'm a boy. I'm ten years old. Look! This is a picture of my family. There are my father, mother, my little sister and me. My father is very tall. He is handsome. He is ...
【简答题】阅读下面的文章，判断下列句子的正（T）误（F）。 Hello, everyone. I am Tom. Let me tell you about my family. My father is a teacher. His name is Jack. My mother is a doctor. My father calls her lovely Lily. I have a little s...
【单选题】(词汇) Tom's little sister is very , always asking us questions.
A.
exciting
B.
inquisitive
C.
interested
D.
curiosity
【简答题】听对话，完成下列的信息记录表。对话听两遍。 People Jobs Why Tom Animal 1 It's interesting and helpful. Tom's brother policeman It's a little 2 , but exciting. Tom's sister 3 She likes to be popular and 4 . Miss Wang 5 It's...
【简答题】用不同种物质表示反应速率并不相等的根本原因是 (A) 不同物质对应着不相同的比速率常数； (B) 不同物质的计量数不同； (C) 不同物质具有不同的瞬时速率； (D) 不同物质具有不同的初始速率。
【单选题】用不同种物质表示反应速率并不相等的根本原因是( )
A.
不同物质对应着不相同的速率常数
B.
不同物质的化学计量数不同
C.
不同物质具有不同的瞬时速率
D.
不同物质具有不同的初始速率
【单选题】Tom's little sister married Simon. So, Tom is Simon's ___________.
A.
son-in-law
B.
brother-in-law
C.
father-in-law
D.
brother
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