精讲笔记

辨析; be able to , can 1)be able to 表示客观能力；can 作为情态动词，表示主观能力。 例如 I can swim .
She is able to walk after a few days in hospital .
2式)b为e caobulled
to .
可以用于各种时态can仅用于一般现在时和一般过去时，过去
练一练 1. We are planning to go for a picnic
this weekend , but it _c____
the weather .
A. keeps on B puts on C depends on
2 . 你不能永远依靠你的父母。
_Y_o__u___c_a__n_'_t___d__e_p_e__n_d____o_n____y_o__u_r____p__a_r_e_n_t_s____f_o_r_e_ver .
苏珊比朱迪踢足球踢得好。 Susan is better at football than Judy。 练一练 李宁擅长打篮球。
___L_i__N_i_n_g___is___g_o_o_d___a_t__p_l_a_y_in_g____fo_o_t_b_a_l_l _. ______.
知识点八
Sometimes a long passage has several small parts . 有时候一个长的段落分为几个小部分。
例如 The baby still couldn’t walk at the age of three .
The baby will be able to walk in a few weeks .
c 练一练
Will you _____ finish your home work this evening?
形容词和副词比较级和最高级的规则变化： 1. 单音节形容词后面直接加-er或-est tall—taller—tallest cheap --- cheaper --- cheapest 2. 以-e结尾的单音节形容词直接加-r或-st large—larger—largest nice—nicer—nicest 3. 以-y结尾的形容词 ，改-y为-i再加-er或-est busy—busier—busiest heavy--heavier- heaviest 4. 形容词是重读闭音节时，双写最后的辅音字母，再加-er或-est hot—hotter—hottest big—bigger—biggest 5. 多音节形容词前面直接加more或most delicious—more delicious—most delicious beautiful—more beautiful—most beautiful 6. 不规则变化 Good -better—best bad —worse—worst
互讲互签 ______________
知识点三
You may be unaware of them . 你也许无法察觉它们。
be unaware of = don’t realize/know 没有意识到 反义: be aware of = realize/ know意识到
E.g. The student is unaware of his mistake. 那个学生未意识到他的出错误． Are you aware of the danger before you？ 你意识到前面的危险了吗？
如： —How many times do you watch TV every week？你每周看几次电视？
—Some times．好几次。
4）some time也是名词短语，意为“一段时间”， time是不可数名词，对它提问用how long。
如： She will stay in Beijing for some time．她将在北京呆一段时间。 —How long can I be away？我能离开多久？ —Some time．一段时间。
2表)s示om的e是tim任e也何是时一候个或副某词一，不意确为定“的在时某间一，时对候它（提过问去用或wh将en来。）”，
如： —When can you finish the work？你何时能完成这项工作。 —Sometime next month．下个月某个时候。
3）some times是名词短语，意为“几次（倍）”， time是可数名词。对它提问用how many times。
互讲互签 ______________
知识点九 形容词的比较级和最高级的用法：
当两种物体之间相互比较时，我们要用形容词的比 较级；
Your computer is bigger mine.
当相互比较的物体是三个或三个以上时，我们就要 用形容词的最高级。
Jim is the tallest in our class.
In addition to English, he has to study a second foreign language. 除英语外，他还得学一门第二外语。
练一练
lie is their youngest child. _B_____, they have a son and a
形容词 比较级和最高级的句子公式：
比较级 形容词物体A + am / are / is + 形比 + than + 物体B.
I am taller than you. Pasta is more delicious than pizza.
最高级 1）物体A + am / are / is + the + 形最高级 + 比较范围（of + 人/物， in +地方）.
I am the tallest in the class. Pasta is the most delicious food of the three.
练一练 一. 词形变换。
• E.g. Rose seems to be a very cute girls .
• 罗斯看上去是一个非常可爱的女孩。
• 拓展：1）seem 后可接名词、形容词、动词不定式做表语。
• E.g. It seems a lovely cat .
• They seemed happy today .
•
A can B may C be able to D are able to
知识点七
For example , they may be better than doctors at doing their job . 例如，他们会更擅长做医生工作。
be better at…than 是be good at的 比较级形式，意即“比…更擅长…”的意思。be good at 擅长于......如：
练一练
1.有时我六点起床。som__e_t_im__e_s_ I get up at six.
2.下周某个时候新同学就要到校上学了。New students will come to school s_o_m__e_ti_m_e__ next week．
3. 他总是花费一些时间来学习英语。She always spends _so_m__e__t_i_m_e__ on her English. 4. 上月我在街道上遇见他几次。 I met him _s_o_m_e__t_im__e_s__ in the street last month.
知识点五
In addition, computers can do important jobs like operating railways and flying planes and spaceships.
此外，计算机还能做像操控铁路系统、驾驶飞机和宇宙飞 船这样的重要工作。
点拨：in addition 意为 “除......以外( 还 ）” 拓展：in addition to另外，是介词短语，后面跟名词或代 词等作宾语，意为“除……之外（还）”。如：
• A . seems B sounds C looks D feels
• 2.It seems _to___ra_i_n_ ( rain ).
•
互讲互签 __________
• 知识点二
• Computers are expensive . • 电脑是昂贵的。
• expensive 形容词，意为 昂贵的 ，expensive 的比较级是 more expensive , 最高级是 most expensive .
精讲笔记
Unit 3
• 知识点一
• You never seem to be short of pocket money , Lo .
• Lo , 你似乎从不缺零花钱 。
• 点拨：该句为 “主语 + seem(s) + to do sth.” seem 在此作连 系动词， 意为“似乎是......”。
1时），s对om它et进im行es提是问个常频用度h副ow词o，ft意en为。“有时候”，多用于一般现在
如： Sometimes I watch TV with my parents．有时我和父母一起看电 视。
—How often do you write to your father？你多久给你父亲写一次信？ —Sometimes．有时。
• 拓展 描述物品的价格高用high ，价格低用low . • expensive 意为贵的 ，用于描述物品，反义词为
cheap .
• 口诀 物品有贵（expensive）贱(cheap），价格有高 （high）低（low）。
• E.g. This coat is expensive . That coat is cheap .