unit1 where did you go on vacation?
词语辨析：1. anywhere 与 somewhere 两者都是不定副词。
anywhere 在任何地方 ， 常用于否定句和疑问句中。i can’t find it anywhere.
somewhere 在某处，到某处，常用于肯定句。 i lost my key somewhere near here.
2. seem + 形容词看起来…..you seem happy today.
seem + to do sth. 似乎、好像做某事 i seem to h**e a cold
i seems / seemed + 从句看起来好像…；似乎…. it seems that no one believe you.
seem like ….好像，似乎…..it seems like a god idea.
3. decide to do sth.决定做某事 they decide to visit the museum.
decide + 疑问词 + 动词不定式 he can not decide when to le**e.
4. start doing sth = start to do sth. 开始，可与begin 互换 。he started doing his homework.
但以下几种情况不能用begin .
1) 创办，开办： he started a new bllkshop last month.
2) 机器开动： i can’t start my car.
3) 出发，动身： i will start tomorrow morning.
5. over 介词，多于，超过，在…以上（表示数目、程度）= more than
my father is over 40 years old.
在…之上，与物体垂直且不接触，与 under 相反。 there is a map over the blackboard.
超过： i hear the news over the radio.
遍及： i want to tr**el all over the world.
6. too many 太多，后接可数名词复数： mother bought too many eggs yesterday.
too much 太多，修饰不可数名词，修饰动词作状语。
we h**e too much work to do. don’t talk too much.
much too 太，修饰形容词或副词。
the hat is much too big for meyou’re walking much too fast.
分辨三者的口诀： too much, much too, 用法区别看后头： much 后接不可数， too 后修饰形或副。
too many 要记住，后面名词必复数。
7. because of 介词短语，因为，由于，后接名词、代词或动名词，不能接句子。
he can’t take a walk because of the rain.
because 连词，因为，引导状语从句，表示直接明确的原因或理由。
i don’t buy the shirt because it was too expensive.
unit 2 how often do you exercise?
词语辨析：1. how often 多久一次，用来提问动作发生的频率。回答用：once，twice, three times 等词语。
how often do you play sports? three times a week.
how long 多长，用来询问多长时间，也可询问某物有多长。
how long does it take to get to shanghai from here? how long is the ruler?
how for 多远， 用来询问距离，指路程的远近。 how far is it from here to the park? it’s about 2 kilometers.
2. free 空闲的，有空的， 反义词为 busy. be free 有空，闲着，相当于 h**e time.
i’ll be free next week. =i’ll h**e time next week.
还可作“免费的、自由的”解。be free to do sth. 自由地做某事。
the tickets are free. you’re free to go or to stay.
3. how come？ 怎么会？
怎么回事？表示某件事情很奇怪，有点想不通；可单独使用，也可引导一个问句， 相当于疑问句 why, 但 how come 开头的特殊疑问句使用的仍然是陈述语序。
how come tom didn’t come to the party? =why didn’t tom come to the party?
4. stay up late 指“熬夜到很晚，迟睡”。 don’t stay up late next time.
stay up 指“熬夜，不睡觉”。 he stayed up all night to write his story.
5. go to bed 强调“**睡觉”的动作及过程，但人不一定睡着。
i went to bed at eleven last night.
go to sleep 强调“入睡，睡着，进入梦乡”。
she was so tired that she went to sleep soon.
6. find + 宾语 +名词， 发现 ： we h**e found him (to be) a good boy.
find + 宾语 + 形容词， 发现： he found the room dirty.
find + 宾语 + 现在分词， 发现 ： i found her standing at the door.
7. percent 百分数， 基数词 + percent： percent 没有复数形式，作主语时，根据所修饰的名词来判断谓语的单复数。
forty percent of the students in our class are girls. thirty percent of time passed.
8. more than 超过，多于，不仅仅， 相当于 over. 在句型转换中考查两者的同义替换。反义词组为：less than
i lived in shanghai for more than / over ten years.
9. afraid 形容词， 担心的，害怕的，在句中作表语，不用在名词前作定语。
i’m afraid we can’t come here on time.
be afraid of sb / sth 害怕某人 / 某事； be afraid of doing sth. 害怕做某事。
some children are afraid of the darkdon’t be afraid of asking question.
i’m afraid + 从句 （恐怕，担心）： i’m afraid i h**e to go now.
10. sometimes , sometime, some times , some time 的区别：
sometimes 频度副词， 有时。表示动作发生的不经常性，多与一般现在时连用，可位于句首、句中或句末。
sometimes i get up very early. -how often do you get up?
sometime 副词，某个时候。 表示不确切或不具体的时间，常用于过去时或将来时，对它用疑问词when.
i will go to shanghai sometime next week. -when will you go to shanghai next week?
some times 名词词组， 几次，几倍。其中time 是可数名词，对它提问用how many times.
i h**e read the story some timeshow many times h**e you read the story?
some time 名词短语， 一段时间。 表示“一段时间”时，句中谓语动词常为延续性动词，提问时用 how long.
i ‘ll stay here for some time. -how long will you stay here?
unit 3 i’m more outgoing than my sister
词语辨析：laugh v. &n. 笑。
we all laughed loudly when she made a joke. 她说了个笑话，我们都大声笑起来。
we all laughed at his joke. 听了他的笑话我们都笑起来。
he laughs best who laughs last. 谁笑在最后，谁笑得最好。/不要高兴得太早。
与at连用）嘲笑。
don’t laugh at him. 别嘲笑他。
people h**e often laughed at stories told by seamen. 人们常常嘲笑海员所讲的故事。
八年级上册英语语法讲解与练习
unit1 where did you go on vacation?词语辨析 1.anywhere 与 somewhere 两者都是不定副词。anywhere 在任何地方 常用于否定句和疑问句中。i can t find it anywhere.somewhere 在某处，到某处，常用于肯定句。i...
八年级上册英语语法讲解与练习
unit1 where did you go on vacation?词语辨析 1.anywhere 与 somewhere 两者都是不定副词。anywhere 在任何地方 常用于否定句和疑问句中。i can t find it anywhere.somewhere 在某处，到某处，常用于肯定句。i...
八年级上册英语语法讲解与练习
unit1 where did you go on vacation?词语辨析 1.anywhere 与 somewhere 两者都是不定副词。anywhere 在任何地方 常用于否定句和疑问句中。i can t find it anywhere.somewhere 在某处，到某处，常用于肯定句。i...