1、from……to……表达了先后顺序,then to多余,B错!
2、move可以及物也可以不及物,I move the desk to a corner.
当表示移动自己时,不用说move oneself,我搬去了非洲,I move to Africa.不能说I move myself to Africa.
1、regard A as B或regard A as adj,as相当于be
regard manner as efficient
2、the early hominids' manner is less efficient than that of modern human beings
B中,it 是同物指代,自己不能跟自己比,错!
1、present as little risk as one chance in a million 和present a risk as little as one chance in a million都是正确的表达方式
2、a risk of sth/doing……的风险,a risk to sb/sth对……是个风险,a risk that……,风险的内容是……,没有a risk for doing和a risk to do
E,it只能指代单数名词risk,present a risk for the risk to cause cancer,错!
A because of B 表示B led to A, 可以理解为先发生了b,之后发生了a,这两件事是独立的,是不同的事情
可以说:more littering has occurred because of the lax enforcement of laws against littering.
不能说: more littering has occurred because people have been throwing bottles along the side of the road。人们在路边扔瓶子和垃圾越来越多是一件事情。
D,
这里有越来越多的轨道附近的垃圾和这些国际废弃物,比如……也是一件事情,不能用because of修饰
1、整个句子的时间是in 1997,过去的时间,不能用现在完成时
2、the number jumped to 20%, jump to有跳起来以够到的意思,比jump at好