3． 在名词性从句中，当主句中差宾语而从句中又差主语时，whomever, whoever, whom, who 应首选whoever 或who引导从句．
2． 在选择动名词或名词做宾语时，应该首选名词．
1． 在宾语补足语或表语中，如有形容词，及物动词的过去分词表示状态．应该首选形容词．
prove
证明 prove sth. prove that．．． rove sb. + adj.
prove sb. + 名词 prove sb. to be ．．．
link-v. 证明是，后来事实证明是
prove sth. prove + adj. prove to be ．．．
B. 短语记忆：
confidence in 对...的信任,相信 connection between; 关系,连接
contest for sth 争夺,竞争 contrast to/with sth 对比,对照 contribution to 贡献,捐献,促成
damage to sth 损坏 danger to sb/sth 危险 defence against 防御,保卫
C. 记住下列动词并写出它们的汉语意思：
obtain vt. occupy vt. occur vi. offend v.
offer vt. open v. operate v. oppose vt.
order vt. organize v. overcome vt. owe vt.
own v. pack v. paint v. pass v.
19. It looks ( seems ) as if ...
句型19中的 as if 引导一个状语从句，常译为，＂看起来好象．．．＂如果与事实不相符合，则用虚拟语气． It looks as if he is ill.(真的病了)It looks as if he were ill. (没有生病)It seemed as if he were dying.
18. It is necessary ( for sb. ) to do sth.
句型18中的真正主语是不定式短语，不定式的逻辑主语前必须 用介词 for，主句中的形容词通常是表示重要性，紧迫性，频繁程度，难易，安全等情况的形容词，常见的形容词有：① important, necessary, natural ② easy , safe , common , normal , hard , difficult , dangerous , unusual, rare , impossible , pleasant
在①中的形容词作表语可以用从句改写，如：
It is important for her to come to the party. = It is important that she (should ) come to the party
1. 小数，分数，百分比引导的短语作主语时的主谓一致问题．
分数和百分数引导的短语作主语，其谓语动词的数应根据分数和百分数后面的名词来确定．如果是可数名词的复数，其谓语动词用复数形式；如果是不可数名词或单数可数名词其谓语动词用单数形式．
7. 数词的修饰语问题．
形容数目很大，常用full, solid 于名词前； good, all of, no less than, as…as , 用于数词前.
形容数目小常用barely, scarcely, no more than等于数词前．
形容“恰好”，“不多不少”，常用clear (名词前) sharp (后置定语) more or less (数词前)．
表示“大约”，“大致”常用nearly, almost, close to, some, about等于数词前，or so(句末),more or less(句末)．
6. 带数词的成语． twos and threes 三三两两at sixes and sevens 乱七八糟
5. “一个半．．．”的表达法． one pound and a half one and a half years