北师大版-英语-八上-英语八年级上Unit 3 Lesson 7(共29张PPT)

6)不规则变化
good/well—better bad—worse many/much—more little—less far—farther/further
注：有些形容词副词没有比较等级 如： right, wrong, very等。
比较级有规律,词尾加上-er两兄弟; 要是以e来结尾,只有小二(r)跟上去; 重读闭音节词要牢记,双写千万别忘记; 要是“辅音+y”来结尾,小艾(i)要把y来替, 再加-er两兄弟; 多音节词加上m-o-r-e,你看这样多容易。
Lesson7
Time to Exercise
(part 2)
▲
Compare the following animals / people:
I’m tall.
I’m taller.
I’m taller than you.
I’m shorter. I’m short. I’m shorter than you.
5)多音节词和部分双音节词要在单词前面加more； important—more important delicious —more delicious expensive —more expensive athletic —more athletic tired — more tired serious —more serious
Work in pairs
old, young, long ,short ,happy
The bird flies high. The plane flies higher.
The plane flies higher than the bird .
The sheep runs fast.
The dog runs faster. The dog runs faster than the sheep.
英语中要比较两个动作，就会用到副词的比较 级。
A + 实义动词+副词的比较级+than +B
e.g. I work hard.（副词）
He works harder. He works harder than me.
Work in pairs
study hard, jump high ,run fast
用括号里单词的正确形式填空。
1. I’m twelve years old. He is eleven. I’m __o_l_de_r______ than him. (old)
2. When it is hot in the morning it is to be __h_o_t_te_r _____ at noon. (hot)
1.tall
taller
2.nice 3.big
nicer bigger
4.funny funnier
5.calm
calmer
6.outgoing more outgoing
7.old
older
8.serious 9.heavy 10.good
more serious heavier better
3)重读闭音节如末尾只有一个辅音字母，须先双写这个 辅音字母，再加-er；
big — bigger fat — fatter thin — thinner red — redder hot — hotter wet— wetter 4)以辅音字母+y结尾的双音节词，先改y为i再加er ； happy—happier early— earlier funny—funnier easy — easier
英语中要比较两个事物，就会用到形容词的比 较级。
e.g. Tom is short. （形容词）
Jack is shorter. Jack is shorter than Tom.
Sentence pattern (句子结构):
表示两者比较的常用结构（A和B比较）： A + be动词+形容词的比较级+than +B eg： You are thinner than me.
homework
1.在作业本上总结并背诵比较级的 变化方法及特殊 动词的比较级。
2.完成学案上的内容。
I’m strong.
I’m stronger.
I’m stronger than you.
I’m old.
I’m older.
I’m older than you.
I’m younger. I’m young. I’m younger than you.
I’m thin.ቤተ መጻሕፍቲ ባይዱ
I’m thinner.
形容词副词的比较级变化（规则变化）
1）在词尾加-er ;
tall — taller old—older
short — shorter high — higher 2) 以不发音的字母e 结尾的，加-r;
nice — nicer large — larger
fine — finer
late — later
I’m thinner than you.
I’m fast.
I’m faster.
I’m faster than you.
I’m heavy. I’m heavyier.
I’m heavier than you.
I’m interesting.
I’m more
interesting. I’m more interesting than you.
This ruler is longer than that one.
tall taller
2.2m
1.8m Yao Ming is __ta_l_le_r___ than Liu Xiang.
short
shorter
0.9m
0.8m
A Dai __is__s_h_o_r_te_r_t_h_a_n_ Xiao Xin.
heavy
heavier
Fei Mao _i_s_h__e_a_v_i_e_r_t_h_a_n__ Liu Huan .
outgoing
serious
Li Yong i_s__m_o__r_e_o_u__tg__o_i_n_g__th_a__n__ Shui Junyi.
Shui Junyi _is__m__o_r_e__s_e_r_io__u_s_t_h_a__n__ Li Yong.
3. His ideas are much m__o_re_i_n_te_re_s_ti_n_g than Jim’s. (interesting)
4. Exercise One is much __e_a_si_er______ than Exercise Two. (easy)
5. The girl is __b_et_te_r______ than her sister. (good)